Tooth implantation operation guide plate and preparation method thereof
阅读说明:本技术 植牙手术导板及其制备方法 (Tooth implantation operation guide plate and preparation method thereof ) 是由 李美桦 于 2020-04-09 设计创作,主要内容包括:一种植牙手术导板及其制备方法,该植牙手术导板包括牙套部、导引部及指示件,上述导引部位于患者的舌侧或颚侧并包含对应植牙孔的导引槽及连通导引槽的开口;上述指示件包含延伸部及端点,延伸部自牙套部延伸至缺牙部的植牙平台上,而端点指示植牙平台的位置,如此一来,将上述植牙手术导板套设于患者的缺牙部时,即可指引缺牙部上的植牙平台及植牙孔位置。(The tooth implantation operation guide plate comprises a tooth sheath part, a guide part and an indicating part, wherein the guide part is positioned on the lingual side or the jaw side of a patient and comprises a guide groove corresponding to a tooth implantation hole and an opening communicated with the guide groove; the indicating piece comprises an extending part and an end point, the extending part extends from the tooth socket part to the tooth implanting platform of the tooth lacking part, and the end point indicates the position of the tooth implanting platform, so that when the tooth lacking part of the patient is sleeved with the tooth implanting operation guide plate, the tooth implanting platform and the tooth implanting hole on the tooth lacking part can be guided.)
1. A kind of implant operation guide plate, is used for covering on a edentulous part and at least one reference healthy tooth of a patient, in order to guide the position of a tooth implantation platform and a tooth implantation hole on this edentulous part, include:
a tooth socket part which is detachably sleeved on the reference healthy tooth;
the guide part is connected with the tooth socket part and comprises a guide groove and an opening, the guide groove corresponds to the tooth implanting hole, and the opening is communicated with the guide groove and is positioned on a tongue side or a cheek side of the patient; and
an indicator, comprising an extension part and an end point, wherein the extension part extends from the tooth socket part to the tooth implantation platform of the tooth lacking part, and the end point indicates the position of the tooth implantation platform.
2. The dental implant surgical guide of claim 1, wherein the mouthpiece portion has an abutment surface that conforms to an outer contour of the reference healthy tooth such that the abutment surface can mate with the reference healthy tooth.
3. The dental implant surgical guide of claim 2, wherein the mouthpiece portion has a widening plate extending from the mouthpiece portion toward a lingual side of the patient and abutting against the lingual side.
4. The dental implant surgical guide of claim 1, wherein the guide slot is aligned with buccal, lingual, proximal and distal positions of the implant hole and guides the direction of the implant hole.
5. The dental implant surgical guide of claim 4, wherein the guide groove further has a guide curved surface having a radius of curvature of 1-4 mm.
6. The dental implant surgical guide according to claim 5, wherein the height of the guide groove is 6mm or more.
7. The dental implant surgical guide of claim 1, wherein the indicator further comprises a wire disposed on the end point, the wire having a length of 1-2 mm.
8. The dental implant surgical guide of claim 1, wherein the socket portion is further provided with a plurality of metal positioning members.
9. A method for preparing a dental implant surgical guide plate, the dental implant surgical guide plate being used for being sleeved on an edentulous part of a patient and at least one reference healthy tooth to guide the positions of a dental implant hole and a dental implant platform on the edentulous part, the method comprising:
(1) obtaining a three-dimensional image of the oral cavity of the patient;
(2) obtaining the outer contour of the reference healthy tooth and positioning the tooth implantation hole and the tooth implantation platform through the three-dimensional image; and
(3) printing a tooth implantation operation guide plate by using a three-dimensional printing method according to the three-dimensional image, wherein the tooth implantation operation guide plate comprises a tooth socket part, a guide part and an indicating piece, and the tooth socket part is detachably sleeved on the reference healthy tooth; the guide groove is connected with the tooth socket part and comprises a guide groove and an opening, the guide groove corresponds to the tooth implanting hole, and the opening is communicated with the guide groove and is positioned on a tongue side or a cheek side of the patient; the indicating member includes an extending portion and an end point, the extending portion extends from the mouthpiece portion to the dental implant platform of the edentulous portion, and the end point indicates the position of the dental implant platform.
10. The method of claim 9, wherein in step (1), an intraoral digital scanner is used to obtain a stereoscopic image of the patient's mouth, the stereoscopic image including at least a stereoscopic image of the edentulous portion, the reference healthy tooth adjacent to the edentulous portion, and an alveolar bone position of the reference healthy tooth adjacent to the edentulous portion.
11. The preparation method according to claim 10, wherein in the step (2), the position of the implant hole is located by a stereoscopic image of the edentulous portion, the outer contour of the reference healthy tooth is obtained by a stereoscopic image of the reference healthy tooth, and the position of the implant platform is located by a stereoscopic image of the alveolar bone position of the reference healthy tooth.
12. The method according to claim 9, wherein in step (3), the mouthpiece portion has an abutting surface that conforms to an outer contour of the reference healthy tooth such that the abutting surface can be matched with the reference healthy tooth.
13. The method of claim 12, wherein in step (3), the mouthpiece portion has a widening plate extending from the mouthpiece portion toward a lingual side of the patient and abutting against the lingual side.
14. The method according to claim 9, wherein in step (3), the guiding slot is aligned with a buccal side, a lingual side, a proximal distal position of the tooth implantation hole, and the direction of guiding the tooth implantation hole.
15. The manufacturing method according to claim 14, wherein in the step (3), the guide groove further has a guide curved surface having a radius of curvature of 1 to 4 mm.
16. The production method according to claim 15, wherein in the step (3), the height of the guide groove is 6mm or more.
17. The method of claim 9, wherein in step (3), the indicator further comprises a metal wire disposed on the end point, the metal wire having a length of 1-2 mm.
18. The method of claim 9, further comprising a step (4) of providing a plurality of metal locators on the shell portion.
19. A kind of implant operation baffle, detachably cover locate one patient lack tooth portion on to guide the position of a tooth platform and a tooth implantation hole on this lack tooth portion, include:
a tooth cover part which is detachably sleeved on part of the gum of the patient;
the guide part is connected with the tooth socket part and comprises a guide groove and an opening, the guide groove corresponds to the tooth implanting hole, and the opening is communicated with the guide groove and is positioned on a tongue side or a cheek side of the patient;
an indicator, comprising an extension part and an end point, wherein the extension part extends from the tooth socket part to the tooth implantation platform of the tooth lacking part, and the end point indicates the position of the tooth implantation platform; and
a plurality of metal positioning pieces arranged on the tooth socket part.
Technical Field
The invention relates to a dental implant operation guide plate and a preparation method thereof, in particular to a dental implant operation guide plate constructed by utilizing a three-dimensional image and a preparation method of the dental implant operation guide plate.
Background
The artificial tooth implantation has both beauty and stability, and is one of the main methods for treating the missing teeth at present. Firstly, the gum at the edentulous part is turned over, a hole is drilled at a preset position and angle and embedded into an implant, and finally, the gum is sutured. After several months, the implant is connected with the alveolar bone, and a second operation is performed to cut off part of the gum above the implant and suture the part of the gum connected with the tooth root of the artificial tooth. After 1 and 2 months, the gingiva is healed, and the artificial tooth implantation is completed by reconstructing the false tooth on the root connection body.
However, the artificial tooth implantation can determine the implantation angle, position and depth according to the patient medical record, the image data such as X-ray film and the like, the operation process still depends on the experience judgment of the dentist, and the technical requirement on the dentist is high. If the implant is carried out according to the bone position, unstable occlusion is easily caused by poor angle symmetry, and the ideal implant position not only can reduce the chance of suffering from periodontal diseases, but also can prolong the service life of the implant.
In view of the above, there is a need for a dental implant surgical guide plate with improved positioning accuracy, so as to more accurately position the implantation position of an artificial tooth root during dental implantation, thereby reducing the surgical time for artificial dental implantation and improving the success rate of artificial dental implantation.
Disclosure of Invention
In order to solve the above problems, the present invention provides a dental implant surgical guide with improved positioning accuracy, which is manufactured according to a stereoscopic image of an oral cavity of a patient, and can more accurately position healthy teeth, a dental implant hole, and a dental implant platform.
The tooth implantation operation guide plate provided by the invention indicates the position of the tooth implantation platform below the dental pulp through the design of the indicating piece so as to mark the depth of the drilled hole at the tooth implantation position, so that the artificial tooth root can be correctly guided in, the success probability of artificial tooth implantation is improved, and the operation time required by artificial tooth implantation is effectively reduced.
The tooth implantation operation guide plate is used for being sleeved on an edentulous part of a patient and at least one reference healthy tooth so as to guide the positions of a tooth implantation platform and a tooth implantation hole on the edentulous part. This implant operation baffle includes: a tooth cover portion, a guiding portion and an indicating member. Wherein, the tooth socket part is detachably sleeved on the reference healthy tooth; the guide part is connected with the tooth socket part and comprises a guide groove and an opening, the guide groove corresponds to the tooth implanting hole, and the opening is communicated with the guide groove and is positioned on a tongue side or a cheek side of the patient; the indicator includes an extension portion and an end point, the extension portion extends from the mouthpiece portion to the dental implant platform of the edentulous portion, and the end point indicates the position of the dental implant platform.
According to a preferred embodiment, the mouthpiece portion may further have an abutting surface that conforms to an outer contour of the reference healthy tooth such that the abutting surface can be mated with the reference healthy tooth.
According to a preferred embodiment, the mouthpiece portion may have a widening plate extending from the mouthpiece portion towards a lingual side of the patient and abutting against the lingual side. The size of the widened plate can be adjusted according to the size of the oral cavity of a patient without particular limitation.
According to a preferred embodiment, the guiding slot can be aligned with the buccal side, lingual side, proximal distal position of the tooth implantation hole and can guide the direction of the tooth implantation hole.
According to a preferred embodiment, the guide groove may further have a guide curved surface having a radius of curvature of 1-3 mm. To facilitate the introduction of the implant, the entrance of the guiding slot is preferably a semicircular structure having an opening when viewed from the occlusal surface of the patient's tooth, and the circular arc structure has a radius of curvature. The radius of curvature may be selected depending on the size of the instrument, such as a drill needle, to be subsequently introduced into the implant or the size of the intended bore hole, and is preferably between 1-4mm, for example 1.7mm, 2.3mm or 3.6 mm.
According to a preferred embodiment, the height of the guide groove is 6mm or more. Therefore, in the process of the tooth implantation operation, the guide groove can effectively position drilling instruments such as a drill point and the like and can keep the instruments stable.
According to a preferred embodiment, the indicator may further comprise a metal wire disposed on the end point. The length and type of the wire may be about 1-2mm, and may be any of orthodontic wires (round wire or square wire may be used) commonly used in dentistry, but is not particularly limited, and other wires that can be used for positioning purposes in X-ray examination may be used.
According to a preferred embodiment, a plurality of metal positioning elements can be further arranged on the tooth socket part, so that the tooth positions can be simply positioned by the metal positioning elements under the condition that the patient has too much missing teeth or no teeth at all. The above "a plurality" means two or more, such as two, three, four or five, which can be adjusted according to actual requirements; the specific embodiments of the metal positioning elements may be, for example, metal balls or metal wires, and the invention is not limited thereto.
The invention also provides a preparation method of the dental implant operation guide plate, the dental implant operation guide plate is used for being sleeved on an edentulous part of a patient and at least one reference healthy tooth so as to guide the positions of a dental implant hole and a dental implant platform on the edentulous part, and the preparation method comprises the following steps: (1) obtaining a three-dimensional image of the oral cavity of the patient; (2) obtaining the outer contour of the reference healthy tooth and positioning the tooth implantation hole and the tooth implantation platform through the three-dimensional image; and (3) printing a tooth implantation operation guide plate by using a three-dimensional line printing method according to the three-dimensional image, wherein the tooth implantation operation guide plate comprises a tooth socket part, a guide part and an indicating piece, and the tooth socket part is detachably sleeved on the reference healthy tooth; the guide groove is connected with the tooth socket part and comprises a guide groove and an opening, the guide groove corresponds to the tooth implanting hole, and the opening is communicated with the guide groove and is positioned on a tongue side or a cheek side of the patient; the indicating member includes an extending portion and an end point, the extending portion extends from the mouthpiece portion to the dental implant platform of the edentulous portion, and the end point indicates the position of the dental implant platform.
According to a preferred embodiment, in step (1), an intraoral digital scanner is utilized to obtain the stereoscopic image of the oral cavity of the patient, wherein the stereoscopic image at least comprises a stereoscopic image of the edentulous portion, the reference healthy tooth adjacent to the edentulous portion, and an alveolar bone position of the reference healthy tooth adjacent to the edentulous portion. However, the means for acquiring the stereoscopic image is not limited to the intra-oral digital scanner, and other methods for generating the three-dimensional stereoscopic image are also applicable.
According to a preferred embodiment, in the step (2), the position of the implant hole is located by the stereoscopic image of the edentulous portion, the outer contour of the reference healthy tooth is obtained by the stereoscopic image of the reference healthy tooth, and the position of the implant platform is located by the stereoscopic image of the alveolar bone position of the reference healthy tooth.
According to a preferred embodiment, in the step (3), the mouthpiece part has an abutting surface, and the abutting surface conforms to the outer contour of the reference healthy tooth, so that the abutting surface can be matched with the reference healthy tooth.
According to a preferred embodiment, in step (3), the mouthpiece portion has a widening plate extending from the mouthpiece portion toward a lingual side of the patient and abutting against the lingual side.
According to a preferred embodiment, in step (3), the guiding slot is aligned with a buccal side, a lingual side, a proximal distal position of the implant hole, and the direction of the implant hole.
According to a preferred embodiment, in the step (3), the guiding groove further has a guiding curved surface, and the radius of curvature of the guiding curved surface is 1-4 mm. For ease of implant introduction, the radius of curvature may be selected based on the size of the instrument, such as a drill pin, or the like, used in subsequent implant introduction or the size of the intended bore, and may be, for example, 1.7mm, 2.3mm, or 3.6 mm.
According to a preferred embodiment, in the step (3), the height of the guide groove is more than 6mm, so that the guide groove can effectively position the drill point and keep the drill point stable during the dental implantation operation.
According to a preferred embodiment, in step (3), the indicator further comprises a metal wire disposed on the end point, wherein the length of the metal wire is 1-2 mm. However, the length and type of the metal line may be adjusted as appropriate without particular limitation so long as the metal line is suitable for use as a positioning wire for X-ray inspection.
According to a preferred embodiment, a step (4) of providing a plurality of metal positioning elements, such as three or more, on the shell portion may be further included. Therefore, under the condition that the patient has too many missing teeth or no teeth at all, the positions of the teeth can be simply positioned by the metal positioning pieces.
The invention also provides a dental implant operation guide plate which is suitable for a dental implant operation that a patient cannot be positioned by real teeth. This implant operation baffle detachably cover is located on a patient's a tooth portion that lacks to guide the position of a tooth platform and a tooth implantation hole on this tooth portion that lacks, include: a tooth cover part which is detachably sleeved on part of the gum of the patient; the guide part is connected with the tooth socket part and comprises a guide groove and an opening, the guide groove corresponds to the tooth implanting hole, and the opening is communicated with the guide groove and is positioned on a tongue side or a cheek side of the patient; an indicator, comprising an extension part and an end point, wherein the extension part extends from the tooth socket part to the tooth implantation platform of the tooth lacking part, and the end point indicates the position of the tooth implantation platform; and a plurality of metal positioning pieces arranged on the tooth socket part. In the dental implant surgical guide, as described above, the guide grooves may be aligned with buccal, lingual and proximal distal positions of the dental implant hole and guide the direction of the dental implant hole, and may have a guide curved surface of 1-4mm and a height of more than 6 mm. In addition, a metal wire with the length of 1-2mm can be arranged on the end point, so that the metal wire can be displayed to be used for positioning in subsequent X-ray examination.
The tooth implantation operation guide plate provided by the invention is manufactured by utilizing three-dimensional printing after positioning the tooth implantation hole and the tooth implantation platform according to the three-dimensional image of the oral cavity of a patient. Compared with the existing guide plate manufactured only according to the two-dimensional plane image, the tooth implantation operation guide plate has the advantage of definite positioning and has higher accuracy.
The dental implant operation guide plate of the invention assists the positioning and the angle of the drilling hole of the dental implant through the arrangement of the indicating piece, so that the artificial tooth root can be quickly and correctly guided into the preset position, thereby greatly saving the operation time, avoiding the situation that the dental implant is too deep or too shallow, ensuring that the height of the dental implant after the dental implant is arranged smoothly, and having the functions of beauty and normal occlusion.
The tooth implantation surgical guide plate is also provided with a plurality of metal positioning pieces on the tooth socket part, and the invention is also suitable for patients with excessive missing teeth, no teeth in the whole mouth, metal tooth sockets or the patients who have received tooth implantation.
The foregoing and other features and advantages of the invention will be apparent from the following more particular description of preferred embodiments.
Drawings
FIG. 1 is a schematic view of a dental implant surgical guide according to an embodiment of the present invention;
FIG. 2 is a schematic view of the dental implant surgical guide of FIG. 1 being fitted over the maxillary teeth of a patient's mouth;
FIG. 3 is a top view of the dental implant surgical guide of FIG. 1 fitted over the teeth of the patient's lower jaw;
FIG. 4 is a side view of the dental implant surgical guide of FIG. 1 fitted over the teeth of the patient's lower jaw;
FIG. 5 is a schematic view of a dental implant surgical guide according to an embodiment of the present invention;
FIG. 6 is a side view of the dental implant procedure guide of FIG. 5 fitted over the maxillary teeth of a patient;
FIG. 7 is a schematic view of a metal positioning element disposed on the mouthpiece portion;
fig. 8 is a flow chart illustrating the preparation of a dental implant surgical guide according to an embodiment of the present invention.
[ description of reference ]
1 dental implant operation guide plate
10 mouthpiece part
11 abutting surface
12 widening board
13 Metal locating piece
20 guide part
21 guide groove
22 opening
23. 24 terminal point
30 indicator
31 an extension part
32 end point
33 Metal wire
2 missing teeth part
3 reference healthy tooth
4 tooth implantation hole
5 dental implant platform
Height D
Detailed Description
Hereinafter, an example will be provided to explain the embodiment of the present invention in detail. The advantages and effects of the invention will be more apparent from the disclosure of the invention. The drawings attached hereto are simplified and are provided as illustrations. The number, shape, and size of the elements shown in the drawings may be modified depending on the actual situation, and the arrangement of the elements may be more complicated. Other aspects of practice or use can be made of the present invention, and various changes and modifications can be made without departing from the spirit and scope of the invention as defined in the following claims.
In the present invention, "reference healthy tooth" refers to a tooth adjacent to a missing tooth. The 'dental implant platform' refers to a position, near the edentulous part, of one or two reference healthy teeth, where the upper edge of the alveolar bone extends to the edentulous part, and is also the depth of the artificial tooth root implanted into the gum when the tooth root is implanted at the edentulous part. "facial midline" refers to the line separating incisors.
Fig. 1 shows a dental implant
Please refer to fig. 2, which is a schematic view of the above-mentioned dental implant
The
In order to keep the above-mentioned dental implant
Referring to fig. 2 in conjunction with fig. 3 and 4, fig. 3 and 4 are a top view and a side view of the dental implant
Since the guide groove 21 has an arc shape, the missing portion is the opening 22. The opening 22 may face the lingual or buccal side of the patient to facilitate the entry and exit of instruments from the lateral side of the guide channel 21, and to facilitate the handling during the surgical procedure. In the case of fig. 3 and 4, the opening 22 faces the buccal side, but in other embodiments, the opening may be designed to face the lingual side without limitation. Because the gum is covered outside the alveolar bone, the gum is turned over firstly in most of the operation to confirm the form of the alveolar bone, and then the artificial tooth root is locked, therefore, the space formed at the opening can also accommodate the turned-over gum in the process.
Please refer to fig. 2 in combination with fig. 5 and 6. Fig. 5 and 6 are side views of the dental implant
In this embodiment, a
After the dental implant
In clinical practice, even 6 to 8 real teeth can be positioned by using the above-described dental implant
Next, a method for manufacturing the dental implant
The step (1) is a front step, and needs to obtain a three-dimensional image of the oral cavity of the patient. Specifically, the patient can be scanned through the whole mouth by using the 3D tomography such as an intraoral digital scanner, and not only the tooth condition including the edentulous portion 2 and the reference healthy tooth 3 adjacent to the edentulous portion 2 can be presented, but also the distribution information of the patient's bone (such as the alveolar bone position of the reference healthy tooth 3), the paranasal sinus cavity and the important neurovascular tissue can be collected.
Next, step (2) of performing a positioning procedure based on the stereoscopic image of the patient's oral cavity acquired in step (1): the position of the tooth implantation hole 4 can be positioned according to the three-dimensional image of the edentulous part 2; the outline of the reference healthy tooth 3 can be obtained by a three-dimensional image of the reference healthy tooth 3; the position of the dental implant platform 5 can be positioned by the three-dimensional image of the alveolar bone position of the reference healthy tooth 3.
Based on the acquired information, step (3) can be performed. Printing the dental implant
If necessary, the method may further include the step (4) of providing a plurality of metal positioning members 13 on the
The above embodiment is described by taking the example of the dental implant procedure in which one artificial tooth is implanted, so that the dental implant procedure guide plate has only one guide portion and one indicator. It should be understood by those skilled in the art that when a plurality of artificial teeth are required to be implanted, the number of the guide portions and the number of the indicating members on the dental implant surgical guide plate may be increased according to the missing tooth condition of the patient and the number of the artificial teeth to be implanted per dental implant surgery, and the increase and decrease of the number of the parts is also included in the scope of the present invention.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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