阅读说明：本技术 种植基台、种植装置和种植牙 (Implant base, implant device and implant tooth ) 是由 梁丽华 周俊 常林 黄永朝 于 2021-07-08 设计创作，主要内容包括：本申请实施例提供了一种种植基台、种植装置和种植牙,涉及牙科种植技术领域,在本申请中,种植基台由基台底座和牙冠基台可拆卸连接而成,基台底座连接在种植体上,牙冠连接在牙冠基台上。若是基台底座变形或开裂,只需要先将牙冠基台与基台底座分离,进而就能够拧出中央螺栓,从而替换基台底座,旧的牙冠不再需要被破坏,只需要替换基台底座,旧的牙冠和旧的牙冠基台可以继续使用,成本低,医疗体验好；若是牙冠基台变形或开裂,只需要将牙冠基台拆下,从而替换新的牙冠基台和牙冠即可,不用替换基台底座,只需要替换牙冠和牙冠基台,旧的基台底座可以继续使用,成本低,同时替换时不再需要旋拧中央螺栓,降低患者的痛苦,医疗体验好。(The embodiment of the application provides a plant base station, planting device and kind implant relates to dentistry and plants technical field, and in this application, the planting base station can be dismantled with the crown base station by the base station base and be connected and form, and the base station base is connected on the implant, and the crown is connected on the crown base station. If the abutment base is deformed or cracked, the dental crown abutment and the abutment base are separated only by first separating the dental crown abutment and the abutment base, and then the central bolt can be screwed out, so that the abutment base is replaced, the old dental crown does not need to be damaged any more, only the abutment base needs to be replaced, the old dental crown and the old dental crown abutment can be continuously used, the cost is low, and the medical experience is good; if the dental crown base station warp or the fracture, only need pull down the dental crown base station to replace new dental crown base station and dental crown can, need not replace the base station base, only need to replace dental crown and dental crown base station, old base station base can continue to use, and is with low costs, no longer need twist central bolt during the replacement simultaneously, reduces patient's misery, and medical experience is good.)

1. A planting abutment, comprising:

the base station base is used for connecting the implant and is provided with a first stepped hole extending along the axial direction of the base station base, and the first stepped hole is used for penetrating through a central screw;

the dental crown base used for connecting the dental crown is detachably connected with the base of the base.

2. The implant abutment according to claim 1, wherein the abutment base is provided with a first connection hole communicating with the first stepped hole, and the dental crown abutment comprises an abutment connection body coaxially connected and a dental crown connection body for connecting a dental crown, the abutment connection body being detachably disposed in the first connection hole.

3. The planting abutment of claim 2, wherein the first connecting hole is internally threaded on an inner peripheral surface thereof, and the abutment connector is externally threaded on an outer peripheral surface thereof, the first connecting hole being threadedly engaged with the abutment connector.

4. The implant abutment according to claim 2, wherein the crown connection body has a truncated cone shape in which an outer diameter of the crown connection body is gradually reduced in a direction parallel to an axial direction of the crown connection body and gradually distant from the abutment connection body; and/or the presence of a gas in the gas,

the dental crown abutment is provided with an accommodating hole extending along the axial direction of the dental crown abutment, and the accommodating hole is communicated with the first step hole.

5. The implant abutment according to claim 4, wherein the crown connection body is provided at an outer circumferential surface thereof with a fixing portion for preventing the crown from moving relative to the crown abutment when the crown connection body is connected to the crown; and/or the presence of a gas in the gas,

the axis of the dental crown connecting body and a generating line of the dental crown connecting body form 2-3 degrees.

6. The implant abutment according to claim 5, wherein the fixing portion is a fixing projection or a fixing depression provided on an outer peripheral surface of the crown connection body; and/or the presence of a gas in the gas,

the fixing parts are arranged on the outer peripheral surface of the dental crown connecting body and are arranged at intervals around the circumferential direction of the dental crown connecting body.

7. The planting abutment of claim 2, wherein the axis of the first connecting hole is 0-30 ° to the axis of the first stepped hole; and/or the presence of a gas in the gas,

the first stepped hole comprises a first hole section, a second hole section and a third hole section, the diameters of the first stepped hole, the second stepped hole and the third hole section are sequentially increased in sequence and are coaxially and sequentially communicated, the third hole section is communicated with the first connecting hole, the second hole section is in a cone frustum shape, and the inner diameter of the second hole section is gradually increased along the direction from the first hole section to the third hole section; and/or the presence of a gas in the gas,

the base of the abutment comprises a rotation prevention body, a frustum body and a gum attachment body which are coaxially and sequentially connected, wherein the rotation prevention body, the frustum body and the gum attachment body are internally and jointly formed with a first stepped hole; the outer peripheral surface of the gum attachment is a part of a spherical surface, and the surface of the gum attachment, which is opposite to the rotation prevention body, is provided with the first connecting hole; the outer diameter of the frustum body is gradually reduced along the direction from the gum attachment to the rotation prevention body; the outer peripheral surface of the rotation preventing body is provided with a first plane part which is parallel to the axis of the rotation preventing body or forms an acute angle with the axis of the rotation preventing body, and the first plane part is used for preventing the base platform base from moving relative to the implant when the base platform base is connected with the implant.

8. A planting device, comprising:

the implant is provided with a second stepped hole extending along the axial direction of the implant, and the second stepped hole comprises a second connecting hole and a threaded hole which are coaxially communicated;

the planting abutment of any one of claims 1-7, wherein the abutment base is partially received in the second connecting hole, the first stepped hole is in communication with the threaded hole, and wherein the second connecting hole is adapted to a portion of the abutment base located in the second connecting hole;

the central bolt sequentially penetrates through the first stepped hole and the second connecting hole, is in threaded engagement with the threaded hole, and is used for fixing the implant and the base of the base station; wherein, the first stepped hole is matched with the part of the central bolt positioned in the first stepped hole.

9. The planting device of claim 8, wherein at least one of the external threads of the central bolt and the internal threads of the threaded bore is formed with a diamond-like coating or a tungsten carbide coating.

10. A dental implant, comprising:

the planting device of claim 8 or 9;

and the dental crown is provided with a third connecting hole, and the dental crown base part is accommodated in the third connecting hole.

Technical Field

The application relates to the technical field of dental implantation, in particular to an implantation abutment, an implantation device and an implantation tooth.

Background

Currently, removable denture repair and implant repair are generally adopted for dentition loss. For removable denture restoration, its application scope is wide, the price is cheaper, but the foreign body sensation is stronger when the patient uses, and the comfort level is relatively poor, and for implant restoration, implant through implanting the implant that has biocompatibility in the osseous tissue, wait that the implant forms firm maintenance support after the osseointegration in the alveolar bone, the fixed connection of dental crown is carried out in the setting of rethread implantation base station, can obtain the restoration effect more similar with function, structure and the pleasing to the eye effect of natural tooth, has become more and more deficient patient's preferred restoration mode.

The inventor researches and discovers that the existing abutment is easy to deform or crack after being subjected to long-term occlusal force in the mouth of a patient and has to be replaced, however, because the abutment and the dental crown are very firmly connected, the old dental crown needs to be damaged to unscrew the central bolt every time the abutment is replaced so as to take out the old abutment and replace the old abutment, and the patient needs to completely replace the whole abutment and the dental crown every time the abutment is replaced, so that the consumption cost is high, the patient suffers pain every time the central bolt is screwed, and the medical experience is poor.

Disclosure of Invention

An object of the application is to provide a plant base station, planting device and kind implant, with low costs, medical experience is good.

In a first aspect, the present invention provides a planting base platform, comprising:

the base station base is used for connecting the implant and is provided with a first stepped hole extending along the axial direction of the base station base, and the first stepped hole is used for penetrating through a central screw;

the dental crown base used for connecting the dental crown is detachably connected with the base of the base.

In an alternative embodiment, the abutment base is provided with a first connection hole communicated with the first stepped hole, the dental crown abutment comprises an abutment connection body and a dental crown connection body, the abutment connection body is coaxially connected with the first stepped hole, and the abutment connection body is detachably arranged in the first connection hole.

In an alternative embodiment, an inner circumferential surface of the first connection hole is provided with an internal thread, an outer circumferential surface of the base adapter is provided with an external thread, and the first connection hole and the base adapter are threadedly engaged.

In an alternative embodiment, the crown connection body has a truncated cone shape in which an outer diameter of the crown connection body is gradually reduced in a direction parallel to an axial direction of the crown connection body and gradually distant from the abutment connection body; and/or the presence of a gas in the gas,

the dental crown abutment is provided with an accommodating hole extending along the axial direction of the dental crown abutment, and the accommodating hole is communicated with the first step hole.

In an alternative embodiment, the outer circumferential surface of the crown connection body is provided with a fixing part for preventing the crown from moving relative to the crown abutment when the crown connection body is connected with the crown; and/or the presence of a gas in the gas,

the axis of the dental crown connecting body and a generating line of the dental crown connecting body form 2-3 degrees.

In an alternative embodiment, the fixing part is a fixing protrusion or a fixing recess provided on an outer circumferential surface of the crown connection body; and/or the presence of a gas in the gas,

the fixing parts are arranged on the outer peripheral surface of the dental crown connecting body and are arranged at intervals around the circumferential direction of the dental crown connecting body.

In an optional embodiment, the axis of the first connecting hole and the axis of the first stepped hole are between 0 and 30 degrees; and/or the presence of a gas in the gas,

the first stepped hole comprises a first hole section, a second hole section and a third hole section, the diameters of the first stepped hole, the second stepped hole and the third hole section are sequentially increased in sequence and are coaxially and sequentially communicated, the third hole section is communicated with the first connecting hole, the second hole section is in a cone frustum shape, and the inner diameter of the second hole section is gradually increased along the direction from the first hole section to the third hole section; and/or the presence of a gas in the gas,

the base of the abutment comprises a rotation prevention body, a frustum body and a gum attachment body which are coaxially and sequentially connected, wherein the rotation prevention body, the frustum body and the gum attachment body are internally and jointly formed with a first stepped hole; the outer peripheral surface of the gum attachment is a part of a spherical surface, and the surface of the gum attachment, which is opposite to the rotation prevention body, is provided with the first connecting hole; the outer diameter of the frustum body is gradually reduced along the direction from the gum attachment to the rotation prevention body; the outer peripheral surface of the rotation preventing body is provided with a first plane part which is parallel to the axis of the rotation preventing body or forms an acute angle with the axis of the rotation preventing body, and the first plane part is used for preventing the base platform base from moving relative to the implant when the base platform base is connected with the implant.

In a second aspect, the present invention provides a planting device comprising:

the implant is provided with a second stepped hole extending along the axial direction of the implant, and the second stepped hole comprises a second connecting hole and a threaded hole which are coaxially communicated;

the planting base station as claimed in any one of the preceding embodiments, wherein the base station base portion is received in the second connecting hole, the first stepped hole is communicated with the threaded hole, and the second connecting hole is matched with a portion of the base station base located in the second hole section;

the central bolt sequentially penetrates through the first stepped hole and the second connecting hole, is in threaded engagement with the threaded hole, and is used for fixing the implant and the base of the base station; wherein, the first stepped hole is matched with the part of the central bolt positioned in the first stepped hole.

In an alternative embodiment, at least one of the external threads of the central bolt and the internal threads of the threaded bore is formed with a diamond-like coating or a tungsten carbide coating.

In a third aspect, the present invention provides a dental implant, comprising:

the planting device of the previous embodiment;

and the dental crown is provided with a third connecting hole, and the dental crown base part is accommodated in the third connecting hole.

Useful effects of the embodiments of the present application include, for example,

the implant base is split type and is formed by detachably connecting a base and a dental crown base, the base is connected to the implant, and the dental crown is connected to the dental crown base. If the base of the abutment is deformed or cracked due to the fact that the implant abutment bears the long-term occlusal force of a patient, the dental crown abutment and the base of the abutment are separated only, and then the central bolt can be screwed out, so that the base of the abutment is replaced, the old dental crown does not need to be damaged any more, for the patient, the base of the abutment only needs to be replaced, the old dental crown and the old dental crown abutment can be used continuously, the cost is low, and the medical experience is good; if bear the long-term occlusal force of patient at the planting base and lead to the dental crown base to warp or the fracture, also only need pull down the dental crown base to replace new dental crown base and dental crown can, need not replace the base, to the patient, only need replace dental crown and dental crown base, old base can continue to use, and is with low costs, no longer need twist central bolt during the replacement simultaneously, reduces patient's misery, and medical experience is good.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of a dental implant according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a dental implant according to an embodiment of the present application;

FIG. 3 is a schematic view of an implant according to an embodiment of the present application;

FIG. 4 is a cut-away view of an implant according to an embodiment of the present application;

FIG. 5 is a schematic view of a planting base according to an embodiment of the present disclosure;

fig. 6 is a cut-away view of a planting abutment according to an embodiment of the present application;

FIG. 7 is a schematic view of a base of an exemplary embodiment of the present application;

FIG. 8 is a cross-sectional view of a base of an abutment according to an embodiment of the present application;

FIG. 9 is a schematic view of a center bolt according to an embodiment of the present application;

FIG. 10 is a schematic view of a dental crown abutment according to an embodiment of the present application;

FIG. 11 is a cut-away view of a dental crown abutment according to an embodiment of the present application;

FIG. 12 is a schematic illustration of a dental crown according to an embodiment of the present application;

fig. 13 is a schematic view of a dental crown abutment according to another embodiment of the present application.

Icon: 1-an implant; 10-second stepped bore; 101-a second connection hole; 1010-anti-rotation holes; 1012-mating holes; 1014-a second planar section; 103-a threaded hole; 3-base station base; 30-first stepped holes; 301-a first bore section; 303-a second bore section; 305-a third bore segment; 32-a first connection hole; 34-a swivel prevention body; 341-first planar portion; 36-a frustum body; 38-gingival attachment; 5-a dental crown abutment; 50-abutment interface; 501-containing holes; 52-a crown connection; 521-punching; 523-a stationary part; 7-central bolt; 70-screw head; 72-a mating column; 74-screw; 9-dental crown; 90-third connection hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Currently, removable denture repair and implant repair are generally adopted for dentition loss. For removable denture restoration, its application scope is wide, the price is cheaper, but the foreign body sensation is stronger when the patient uses, and the comfort level is relatively poor, and for implant restoration, implant through implanting the implant that has biocompatibility in the osseous tissue, wait that the implant forms firm maintenance support after the osseointegration in the alveolar bone, the fixed connection of dental crown is carried out in the setting of rethread implantation base station, can obtain the restoration effect more similar with function, structure and the pleasing to the eye effect of natural tooth, has become more and more deficient patient's preferred restoration mode.

The inventor researches and discovers that the existing abutment is easy to deform or crack after bearing long-term occlusal force in the mouth of a patient and has to be replaced, however, because the abutment and the dental crown are very firmly connected, the central bolt can be unscrewed after the old dental crown is damaged every time when the abutment is replaced, so that the old abutment is taken out and replaced, the whole abutment and the dental crown are required to be replaced every time when the patient replaces the abutment, the consumption cost is high, and the implant can transmit the force to the gum bone tissue of the patient due to the fact that the central bolt is screwed every time, so that the patient suffers pain, and the medical experience is poor.

In view of the above-mentioned drawbacks, the inventors have studied to provide the following examples for improvement.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 and 2, an implant according to an embodiment of the present invention includes an implant device and a crown 9, the implant includes an implant 1, an implant abutment and a central bolt 7, the implant abutment is connected to the implant 1 and fixed by the central bolt, and the crown 9 is connected to the implant abutment. Wherein, the base platform of implanting includes base platform base 3 and crown base 5, and base platform base 3 is used for being connected with the implant 1, is equipped with along the first shoulder hole 30 of self axial extension, and first shoulder hole 30 is used for wearing to establish central screw. The dental crown base 5 is detachably connected with the base 3 and is used for arranging a dental crown 9.

From this, the implantation base platform is split type, can dismantle by base platform base 3 and dental crown base platform 5 and connect and form, and base platform base 3 connects on implant 1, and dental crown 9 connects on dental crown base platform 5. If the abutment base 3 is deformed or cracked due to the fact that the implant abutment bears the long-term occlusal force of the patient, the dental crown abutment 5 is separated from the abutment base 3 only, and then the central bolt 7 can be screwed out, so that the abutment base 3 is replaced, the old dental crown 9 does not need to be damaged any more, for the patient, the abutment base 3 only needs to be replaced, the old dental crown 9 and the old dental crown abutment 5 can be continuously used, the cost is low, and the medical experience is good; if bear the long-term occlusal force of patient at the planting base and lead to the deformation of crown base 5 or fracture, also only need pull down crown base 5 to replace new crown base 5 and crown 9 can, need not replace base 3, to the patient, only need replace crown 9 and crown base 5, old base 3 can continue to use, and is with low costs, no longer need twist central bolt 7 during the replacement simultaneously, reduces patient's misery, and medical experience is good.

Referring to fig. 3 and 4, in the present embodiment, the outer circumferential surface of the implant 1 is provided with external threads so that the implant 1 is fixed in bone tissue within the gum. The implant 1 is provided with a second stepped hole 10 extending along the self axial direction, the second stepped hole 10 is a blind hole and comprises a second connecting hole 101 and a threaded hole 103 which are coaxially communicated, wherein the second connecting hole 101 is positioned at the outer side relative to the threaded hole 103, the second connecting hole 101 comprises an anti-rotation hole 1010 and a matching hole 1012 which are coaxially communicated, the anti-rotation hole 1010 is communicated with the threaded hole 103, the inner circumferential surface of the anti-rotation hole 1010 is provided with at least one second plane part 1014, and the second plane part 1014 is parallel to or forms an acute angle with the axis of the anti-rotation hole 1010. The fitting hole 1012 has a truncated cone shape, and the inner diameter of the fitting hole 1012 is gradually reduced in a direction parallel to the axis of the implant 1 and gradually closer to the threaded hole 103.

Referring to fig. 5 to 7, the abutment base 3 is provided with a first connection hole 32 communicating with the first stepped hole 30, the crown abutment 5 includes an abutment connection body 50 and a crown connection body 52 coaxially connected to the crown 9, and the abutment connection body 50 is detachably disposed in the first connection hole 32.

Specifically, the inner circumferential surface of the first connection hole 32 is provided with an internal thread, the outer circumferential surface of the abutment connector 50 is provided with an external thread, and the first connection hole 32 and the abutment connector 50 are threadedly engaged, thereby achieving the detachable connection of the crown abutment 5 and the abutment base 3.

Referring to fig. 6 and 8, the axis of the first connection hole 32 and the axis of the first stepped hole 30 are 0 to 30 °, that is, the axis of the first connection hole 32 and the axis of the first stepped hole 30 are overlapped or form an acute angle of 30 ° or less, that is, the first connection hole 32 and the first stepped hole 30 are coaxially communicated or form an acute angle of 30 ° or less, so that after the first connection hole 32 of the abutment connector 50 is threadedly engaged, the abutment base 3 and the crown abutment 5 form a coaxial implant abutment, or the abutment base 3 and the crown abutment 5 form an implant abutment with an angle of 30 ° or less. That is, according to the needs of the teeth at different positions of a patient or the teeth at different positions of different patients, the proper angle of the implant abutment is selected correspondingly, so that the requirement of installing the angle abutment when the implant direction of the implant 1 is deviated in clinic is facilitated.

In addition, when the abutment base 3 and the crown abutment 5 form an implant abutment with an angle, the abutment base 3 and the crown abutment 5 can be separately and independently processed because the abutment base 3 and the crown abutment 5 are detachably connected, and compared with the angle abutment integrally formed in the prior art, the angle abutment cannot be adjusted by using a five-axis longitudinal cutting machine and power, the angle abutment is difficult to process and is beneficial to processing.

Please refer to fig. 5 and fig. 6, a portion of the base 3 is received in the second connecting hole 101, wherein the second connecting hole 101 is adapted to a portion of the base 3 located in the second hole 303, and the first stepped hole 30 is communicated with the threaded hole 103.

Further, please continue to refer to fig. 1 to 8, the abutment base 3 includes an anti-rotation body 34, a frustum body 36 and a gum attachment body 38 which are coaxially and sequentially connected, and the outer diameters of the anti-rotation body 34, the frustum body 36 and the gum attachment body 38 are sequentially increased, a first stepped hole 30 is formed in the anti-rotation body 34, the frustum body 36 and the gum attachment body 38, the anti-rotation body 34 and the frustum body 36 are all accommodated in the second connecting hole 101, the anti-rotation body 34 is adapted to the anti-rotation hole 1010, the frustum body 36 is adapted to the mating hole 1012, and meanwhile, the anti-rotation body 34, the frustum body 36 and the implant 1 are coaxial.

With continued reference to fig. 2, 7 and 8, the rotation preventing body 34 is adapted to the fitting hole 1012, specifically, the outer peripheral surface of the rotation preventing body 34 is fitted to the inner peripheral surface of the fitting hole 1012, and in detail, the outer peripheral surface of the rotation preventing body 34 has at least one first flat portion 341 parallel to its axis or forming an acute angle, and the first flat portion 341 is fitted to the second flat portion 1014, so that when the abutment base 3 is connected to the implant 1, the abutment base 3 can be prevented from moving relative to the implant 1, that is, the abutment base 3 can be prevented from rotating relative to the implant 1 due to the fitting of the first flat portion 341 and the second flat portion 1014. It should be noted that, in this embodiment, the first flat portions 341 and the second flat portions 1014 correspond to each other one by one, and the number of the first flat portions 341 and the second flat portions 1014 is not particularly limited, and may be more than one, where when the number of the first flat portions 341 is more than three, each first flat portion 341 is disposed around the circumferential direction of the rotation preventing body 34 and is sequentially connected end to end, so that each first flat portion 341 forms the outer circumferential surface of the rotation preventing body 34, and correspondingly, each second flat portion 1014 is disposed around the circumferential direction of the implant 1 and is sequentially connected end to end, so that each second flat portion 1014 forms the inner circumferential surface of the fitting hole 1012. The present embodiment exemplarily shows that the rotation preventing body 34 is a hexagonal prism, an octagonal prism, and the like, so that the rotation preventing body 34 has six first flat surfaces 341, eight first flat surfaces 341, and the like, and accordingly, the fitting hole 1012 is a hexagonal prism, an octagonal prism, and the fitting hole 1012 has six second flat surfaces 1014, eight second flat surfaces 1014.

With continued reference to fig. 2, 7 and 8, the frustum body 36 is adapted to the mating hole 1012, and specifically, the outer diameter of the frustum body 36 gradually decreases along the direction from the gum attachment body 38 to the anti-rotation body 34. The angle between the axis of frustum 36 and the generating line is unanimous with the angle between the axis of mating holes 1012 and the generating line, and the outer peripheral face of frustum 36 laminates with the inner peripheral face of mating holes 1012 mutually to because frustum 36 and mating holes 1012 all are the frustum of a cone form, can reduce the fit clearance, effectively prevent microorganism such as bacterium to invade to the planting body 1 in, reduce the risk of infecting clinically, simultaneously can also disperse the interlock stress, avoid stress concentration to cause the damage to planting body 1. The angle between the axis of the frustum body 36 and the generatrix is 2-15 degrees, and specific numerical values are not limited and can be any numerical value between 2 degrees and 15 degrees, such as 2 degrees, 5 degrees, 11 degrees or 15 degrees; correspondingly, the generatrix and the axis of the mating hole 1012 are also 2-15 °, and the specific value is not limited, and may be any value between 2 ° and 15 °, such as 2 °, 5 °, 11 °, or 15 °.

With continued reference to fig. 7 and 8, the outer peripheral surface of the gingival attachment 38 is a portion of a spherical surface, i.e., an arc surface, and has a smooth surface, thereby facilitating attachment and growth of the gingiva, and at the same time, the surface is easy to clean and maintain, and can better control the growth of dental calculus and bacterial plaque. The gum attachment 38 has a first connection hole 32 on the surface opposite to the rotation-preventing body 34.

With reference to fig. 8, the first stepped hole 30 includes a first hole section 301, a second hole section 303 and a third hole section 305, which have diameters that increase sequentially and are coaxially and sequentially communicated, the third hole section 305 is communicated with the first connection hole 32, the second hole section 303 is in a truncated cone shape, wherein the first hole section 301 and the third hole section 305 are both in a cylindrical shape with a constant inner diameter, and the inner diameter of the second hole section 303 gradually increases along a direction from the first hole section 301 to the third hole section 305, so that the second hole section 303 is in a truncated cone shape. Specifically, the axial length of the first hole section 301 is greater than the sum of the axial length of the rotation preventing body 34 and the axial length of the frustum body 36, that is, the first hole section 301 penetrates through the rotation preventing body 34 and the frustum body 36, a part of the first hole section 301 is disposed in the rotation preventing body 34 and the frustum body 36, another part of the first hole section 301 is disposed in the gum attachment body 38, and the first hole section 301 extends in the axial direction of the rotation preventing body 34 and the frustum body 36, so that the second hole section 303 and the third hole section 305 are both disposed in the gum attachment body 38.

With continued reference to fig. 2, 8 and 9, the central bolt 7 is sequentially inserted through the first stepped hole 30 and the second connecting hole 101, and is threadedly engaged with the threaded hole 103 for fixing the implant 1 and the base 3 of the abutment. Wherein the first stepped hole 30 is adapted to the portion of the central bolt 7 located within the first stepped hole 30.

Specifically, the central bolt 7 includes two parts, i.e., a head 70 and a screw 74, which are coaxially connected, the end of the head 70 is provided with a polygonal wrench hole, the head 70 and the screw 74 are in a chamfered transition, i.e., a matching column 72 in the shape of a truncated cone is formed between the head 70 and the screw 74, and the outer diameter of the matching column 72 gradually decreases along the direction from the head 70 to the screw 74. After the screw 74 of the center bolt 7 passes through the first stepped hole 30 and the second connection hole 101 in order and is threadedly engaged with the threaded hole 103, the head 70 of the center bolt 7 is partially accommodated in the third hole section 305, and the outer circumferential surface of the head 70 is attached to the inner circumferential surface of the third hole section 305; the matching column 72 is accommodated in the second hole section 303, the angle between the axis of the matching column 72 and the generatrix is kept consistent with the angle between the axis of the second hole section 303 and the generatrix, and the outer circumferential surface of the matching column 72 is ensured to be tightly attached to the inner circumferential surface of the second hole section 303, so that the meshing concentrated stress transmitted to the central screw 74 can be effectively dispersed, and the fatigue life of the central screw 74 is prolonged. The angle between the axis of the fitting column 72 and the generatrix is 30-60 °, and the specific numerical value is not limited, and may be any numerical value between 30 ° and 60 °, such as 30 °, 40 °, 45 °, 48 °, 50 °, or 60 °, and correspondingly, the angle between the axis of the second hole section 303 and the generatrix is also 30-60 °, and the specific numerical value is not limited, and may be any numerical value between 30 ° and 60 °, such as 30 °, 40 °, 45 °, 48 °, 50 °, or 60 °.

With continued reference to fig. 4 and 9, the external threads of the central bolt 7, i.e. the external threads of the shank 74 of the central bolt 7, form a Diamond-like coating or a tungsten carbide coating, Diamond-like Carbon (DLC) coating for short. This reduces frictional losses between the screw pairs, so that the applied torque value is converted more into the preload of the screw 74.

Of course, in other embodiments, a diamond-like coating or a tungsten carbide coating may be formed on the threaded hole 103, and a corresponding effect can be achieved; it is also possible that the external thread of the central bolt 7 and the internal thread of the threaded hole 103 are both formed with a diamond-like coating or a tungsten carbide coating. That is, in the present application, at least one of the external thread of the center bolt 7 and the internal thread of the threaded hole 103 is formed with a diamond-like coating or a tungsten carbide coating.

Referring to fig. 6, 10 and 11, in the present embodiment, the dental crown base 5 is provided with a receiving hole 501 and a through hole 521 extending along its axial direction, the receiving hole 501 and the through hole 521 are coaxial and communicated, the receiving hole 501 is communicated with the first step hole 30, so that the whole dental crown base 5 penetrates through the axial direction thereof, and when the base connector 50 and the first connecting hole 32 are in threaded engagement after the central bolt 7 fixes the base 3 and the implant 1, the receiving hole 501 can partially receive the screw head 70 of the central bolt 7, so as to ensure that the structure of the whole dental crown base is more compact, and after the dental crown base 5 and the base 3 are connected, a fastening member such as a screwdriver can be inserted into the through hole 521 to screw the central bolt 7. Specifically, the through hole 521 is a cylindrical hole with a constant inner diameter, the accommodating hole 501 is in a truncated cone shape, that is, along a direction parallel to the axis of the accommodating hole 501 and gradually approaching the first stepped hole 30, the inner diameter of the end of the accommodating hole 501 communicating with the first stepped hole 30 is larger than the inner diameter of the end of the accommodating hole 501 far away from the first stepped hole 30, so that the structure is made more compact as much as possible on the premise that the crown base 5 has sufficient bearing capacity and can accommodate part of the screw head 70 of the central bolt 7. In the present embodiment, the abutment connecting body 50 is provided with a receiving hole 501 along its axial direction, the receiving hole 501 communicates with the first stepped hole 30, and the crown connecting body 52 is provided with a through hole 521 coaxially communicating with the receiving hole 501. Wherein the axial length of the receiving hole 501 is greater than the axial length of the abutment connecting body 50, so that a part of the receiving hole 501 is provided in the abutment connecting body 50 and another part of the receiving hole 501 is provided in the crown connecting body 52. Of course, in other embodiments, only the dental crown abutment 5 may be provided with the receiving hole 501 extending axially, and the receiving hole 501 is a blind hole and is communicated with the first step hole 30, so that the receiving hole 501 receives part of the screw head 70 of the central bolt 7.

With continued reference to fig. 10, 11 and 12, in the present embodiment, the crown connection body 52 has a truncated cone shape, and the outer diameter of the crown connection body 52 gradually decreases along a direction parallel to the axial direction of the crown connection body 52 and gradually away from the abutment connection body 50. The dental crown 9 is provided with a third connecting hole 90, a part of the dental crown abutment 5 is accommodated in the third connecting hole 90, and the third connecting hole 90 is matched with the part of the dental crown abutment 5 positioned in the third connecting hole 90.

Specifically, with continued reference to fig. 12, the crown 9 is placed in the mouth of the patient, and the outer surface thereof is shaped to resemble a natural tooth, and is made of mainly porcelain or zirconia, and mainly plays a role of directly playing an occlusal force and being beautiful. The third connecting hole 90 is a blind hole, the crown connecting body 52 is accommodated in the third connecting hole 90, and the shape and size of the third connecting hole 90 are matched with those of the crown connecting body 52, that is, the third connecting hole 90 and the crown connecting body 52 are both in a truncated cone shape, so that when the crown 9 is sleeved on the crown connecting body 52, the crown 9 can be guided to be quickly positioned without deviation. When the crown 9 is installed, an adhesive may be coated in the third connection hole 90 of the crown 9 or on the outer circumferential surface of the crown connection body 52, and then the third connection hole 90 of the crown 9 is aligned with the crown connection body 52, and the crown 9 is fitted on the crown connection body 52, thereby realizing the connection between the crown connection body 52 and the crown 9. The angle between the axis of the crown connection body 52 and the generatrix of the crown connection body 52 is consistent with the angle between the generatrix of the third connection hole 90 and the axis, for example, the generatrix of the crown connection body 52 and the axis are 2-3 degrees, and correspondingly, the generatrix of the third connection hole 90 and the axis are 2-3 degrees.

Referring to fig. 10 and 13, in the present embodiment, the outer circumferential surface of the crown connection body 52 is provided with a fixing part 523, and the fixing part 523 is used to prevent the crown 9 from moving relative to the crown abutment 5 when the crown connection body 52 is connected to the crown 9.

Specifically, referring to fig. 10, the fixing part 523 is a fixing protrusion provided on the outer circumferential surface of the crown connection body 52, and the shape and size of the fixing protrusion are not particularly limited, so that the contact area of the adhesive with the crown connection body 52 can be increased to prevent the crown 9 from rotating or slightly moving in the axial direction with respect to the crown abutment 5. The external circumferential surface of the crown connection body 52 is provided with a plurality of fixing protrusions 523 arranged at intervals around the circumference of the crown connection body 52, thereby preventing the movement of the crown 9 with respect to the crown abutment 5 when the crown 9 is subjected to biting forces in different directions. In the present embodiment, the number of the fixing projections is also not limited, and may be one, two, three, or more, for example, four fixing projections are provided on the outer circumferential surface of the crown connection body 52.

In another embodiment, referring to fig. 13, the fixing portion 523 is a fixing recess formed on an outer circumferential surface of the crown connection body 52, the fixing recess is not specifically limited in shape and size, and accordingly, the crown 9 can be prevented from moving relative to the crown abutment 5, the outer circumferential surface of the crown connection body 52 is provided with a plurality of fixing recesses, and the plurality of fixing recesses are spaced around the circumference of the crown connection body 52, so as to cope with the occlusal forces of the crown 9 in different directions. Meanwhile, the number of the fixing recesses is not limited, and may be one, two, three or more.

That is, in the present application, the outer peripheral surface of the crown connection body 52 is provided with a plurality of fixing parts 523, and the plurality of fixing parts 523 are arranged at intervals around the circumferential direction of the crown connection body 52, thereby preventing the crown 9 from moving relative to the crown abutment 5 against the biting force of the crown 9 in different directions.

To sum up, the planting base station, planting device and planting tooth that this application embodiment provided, the planting base station is split type, can dismantle by base station base 3 and dental crown base station 5 and connect and form, and base station base 3 connects on implant 1, and dental crown 9 connects on dental crown base station 5. If the abutment base 3 is deformed or cracked due to the fact that the implant abutment bears the long-term occlusal force of the patient, the dental crown abutment 5 is separated from the abutment base 3 only, and then the central bolt 7 can be screwed out, so that the abutment base 3 is replaced, the old dental crown 9 does not need to be damaged any more, for the patient, the abutment base 3 only needs to be replaced, the old dental crown 9 and the old dental crown abutment 5 can be continuously used, the cost is low, and the medical experience is good; if bear the long-term occlusal force of patient at the planting base and lead to the deformation of crown base 5 or fracture, also only need pull down crown base 5 to replace new crown base 5 and crown 9 can, need not replace base 3, to the patient, only need replace crown 9 and crown base 5, old base 3 can continue to use, and is with low costs, no longer need twist central bolt 7 during the replacement simultaneously, reduces patient's misery, and medical experience is good.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.