阅读说明：本技术 后牙减压咬合板及其制造方法 (Posterior teeth decompression occlusal plate and manufacturing method thereof ) 是由 王琪 于 2020-05-15 设计创作，主要内容包括：本发明提供一种后牙减压咬合板及其制造方法,涉及口腔正畸器械技术领域,用于提升治疗颞下颌关节紊乱综合证的治疗效果。该后牙减压咬合板包括固位体和咬合引导体；所述固位体呈与牙列形状一致的曲线延伸,所述固位体包括相对设置的腭侧壁和颊侧壁,以及连接在所述腭侧壁和颊侧壁之间的牙合面,所述腭侧壁、颊侧壁以及所述牙合面围成用于固位至牙列上的牙套；所述咬合引导体设置在所述固位体的磨牙区,所述咬合引导体包括用于抵持到对颌牙的咬合面,所述咬合引导体用于将上颌牙列和下颌牙列撑开,并使下颌髁状突能够退至由颞下颌韧带限制的边缘位。本发明提供的后牙减压咬合板用于治疗颞下颌关节病。(The invention provides a posterior teeth decompression occlusal plate and a manufacturing method thereof, relates to the technical field of orthodontic appliances, and is used for improving the treatment effect of treating temporomandibular joint disorder syndrome. The posterior teeth decompression bite plate comprises a retainer and a bite guiding body; the retainer extends in a curve consistent with the shape of the dentition, the retainer comprises a palatal side wall and a buccal side wall which are oppositely arranged, and an occlusal surface connected between the palatal side wall and the buccal side wall, and the palatal side wall, the buccal side wall and the occlusal surface enclose a tooth socket for retaining to the dentition; the occlusion guide body is arranged in a molar area of the retainer and comprises an occlusion surface used for abutting and holding the maxillary teeth, and the occlusion guide body is used for propping open the maxillary dentition and the mandibular dentition and enabling the mandibular condyloid process to retreat to an edge position limited by a temporal mandibular ligament. The posterior teeth decompression occlusal plate provided by the invention is used for treating temporomandibular joint diseases.)

1. A posterior teeth decompression occlusal plate is characterized by comprising a retainer and an occlusion guide body;

the retainer extends in a curve consistent with the shape of the dentition, the retainer comprises a palatal side wall and a buccal side wall which are oppositely arranged, and an occlusal surface connected between the palatal side wall and the buccal side wall, and the palatal side wall, the buccal side wall and the occlusal surface enclose a tooth socket for retaining to the dentition;

the occlusion guide body is arranged in a molar area of the retainer and comprises an occlusion surface used for abutting and holding the maxillary teeth, and the occlusion guide body is used for propping open the maxillary dentition and the mandibular dentition and enabling the mandibular condyloid process to retreat to an edge position limited by a temporal mandibular ligament.

2. The posterior teeth decompression bite plate according to claim 1, wherein the bite guide is a protrusion protruding from the occlusal surface of the retainer, and a top surface of the protrusion is the occlusal surface.

3. The posterior decompression bite plate of claim 1, wherein the bite guide is located at the corresponding second molar on the retainer.

4. The posterior decompression bite plate according to claim 1, wherein the bite surface comprises a support surface and at least one beveled guide surface with reference to mandibular condylar slope.

5. The posterior teeth decompression bite plate according to any one of claims 1 to 4, wherein the bite guide has a height of 2 to 6mm, a length of 3 to 15mm and a width of 3 to 7 mm.

6. The posterior decompression bite plate according to claim 1, wherein said teeth braces are formed on said retainers for retaining to the maxillary dentition.

7. The posterior decompression bite plate of claim 6, wherein the retainer is integrally formed with the bite guide.

8. The posterior decompression bite plate according to any one of claims 1, 6 or 7, wherein the retainer and the bite guide are each made of a self-setting dental resin.

9. A method of manufacturing a posterior decompression bite plate, comprising:

acquiring dynamic occlusion information, and reconstructing a lower jaw position based on the dynamic occlusion information;

controlling and guiding the lower jaw to perform small mouth opening and retreating so as to enable the upper jaw dentition and the lower jaw dentition to be at a first preset position;

forming a reserved space of a posterior teeth decompression bite plate based on the upper jaw dentition and the lower jaw dentition at the first preset position;

and forming the posterior tooth decompression bite plate based on the reserved space of the posterior tooth decompression bite plate.

10. The method of manufacturing a posterior decompression bite plate according to claim 9, wherein the step of forming a reserved space of the posterior decompression bite plate based on the upper and lower jaw dentitions comprises:

generating a retainer model based on the upper jaw dentition or the lower jaw dentition, wherein the retainer model comprises opposite palatal side walls and buccal side walls and an occlusal surface connected between the palatal side walls and the buccal side walls, the palatal side walls and the buccal side walls are respectively wrapped on the inner surface and the outer surface of the upper jaw dentition or the lower jaw dentition, and the occlusal surface is wrapped on the occlusal surface of the upper jaw dentition or the lower jaw dentition;

and forming an occlusion guide body on an occlusal surface of the retention body model, supporting the occlusion guide body on the opposite jaw dentition, and forming an occlusal surface on the surface of the occlusion guide body supported on the opposite jaw dentition.

Technical Field

The invention relates to the technical field of orthodontic appliances, in particular to a posterior tooth decompression occlusal splint for treating temporomandibular joint disease (functional structure disorder) and a manufacturing method thereof.

Background

Temporomandibular joint disorder syndrome (temporomandibular joint disease) is a common disease of the oral and facial areas that may be caused by mental factors, traumatic factors, occlusal factors or other systemic diseases, the pathogenesis of which is not fully studied at present.

Because the pathogenesis of the temporomandibular joint disorder syndrome is complex, the treatment methods are various, and the current common treatment mode adopts the occlusal plate for treatment, however, the traditional occlusal plate has insufficient dynamic vertical decompression to the temporomandibular joint capsule inner structure, and the self-regulation capability of chewing organs is not fully mobilized, so the treatment effect is poor.

Disclosure of Invention

In view of the above problems, embodiments of the present invention provide a posterior decompression bite plate and a method for manufacturing the same, which are used to improve the treatment effect of temporomandibular joint disorder syndrome with the posterior decompression bite plate.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

in a first aspect, the present invention provides a posterior teeth reduced pressure occlusal plate, which includes a retainer and an occlusion guiding body, wherein the retainer extends in a curve conforming to the shape of a dentition, the retainer includes opposite palatal and buccal sidewalls, and an occlusal surface connected between the palatal and buccal sidewalls, and the palatal, buccal and occlusal surfaces enclose a mouthpiece for retaining to the dentition; the occlusion guide body is arranged in a molar area of the retainer and comprises an occlusion surface used for abutting and holding the maxillary teeth, and the occlusion guide body is used for propping open the maxillary dentition and the mandibular dentition and enabling the mandibular condyloid process to retreat to an edge position limited by a temporal mandibular ligament.

Compared with the prior art, the posterior tooth decompression bite plate provided by the embodiment of the invention has the following advantages:

when the posterior decompression occlusal plate with the structure is used, the retainer sleeve formed with the tooth sleeve is fixed on the tooth row, the occlusion guide body is abutted against the occlusal surface of the jaw tooth, the central relation position can be established at the lower jaw position represented by the condyloid process by using the occlusion guide body, vertical decompression support is provided for the jaw tooth, and vertical joint decompression is realized, so that the closure force of rhythmic masticatory muscles in sleep can be resisted, the joint disorder structure returns to the normal state, the damaged joint structure can be maintained and regenerated, and the treatment effect of treating temporomandibular joint disorder syndrome by using the posterior decompression occlusal plate is improved. In addition, the posterior decompression occlusal plate can eliminate functional muscle interference between the jaw teeth during forward extension or lateral movement, so that a joint disc can be activated in a temporomandibular joint, the activity of cranio-mandibular nerve muscles is recovered, a mandibular movement space is liberated, the self-adjustment of the mandibular position is realized, and the treatment effect of treating temporomandibular joint disorder syndrome by using the posterior decompression occlusal plate is further improved.

As a possible implementation manner of the posterior teeth decompression bite plate, the bite guiding body is a protrusion protruding from the occlusal surface of the retainer, and the top surface of the protrusion is the occlusal surface.

As another possible implementation manner of the posterior teeth decompression bite plate, the bite guiding body is located at the corresponding second molar on the retainer. So design, when wearing back tooth decompression bite-block on the dentition, the interlock guide body is located the position of second molar for prop open upper jaw dentition and lower jaw dentition, prevent anterior tooth interference.

As one possible implementation of the posterior decompression bite plate, the bite surface includes a support surface and at least one beveled guide surface with reference to the mandibular condylar slope.

As another possible realization mode of the posterior teeth decompression bite plate, the height of the bite guiding body is 2-6mm, the length is 3-15mm, and the width is 3-7 mm. By the design, the vertical decompression support can be realized, the dynamic decompression effect is achieved, meanwhile, the protrusion and the lateral movement of the lower jaw are not influenced, and the interference of anterior teeth is prevented.

As one possible implementation manner of the posterior decompression bite plate, the teeth sockets for fixing to the maxillary dentition are formed on the retainers.

As one possible implementation manner of the posterior decompression bite plate, the retainer is integrally formed with the bite guide.

As one possible implementation manner of the posterior decompression bite plate, the retainer and the bite guide are made of self-setting dental resin.

In a second aspect, embodiments of the present invention further provide a method for manufacturing a posterior tooth reduced pressure bite plate, including: acquiring dynamic occlusion information, and reconstructing a lower jaw position based on the dynamic occlusion information; controlling and guiding the lower jaw to perform small mouth opening and retreating so as to enable the upper jaw dentition and the lower jaw dentition to be at a first preset position; forming a reserved space of a posterior teeth decompression bite plate based on the upper jaw dentition and the lower jaw dentition at the first preset position; and forming the posterior tooth decompression bite plate based on the reserved space of the posterior tooth decompression bite plate.

As one possible implementation manner of the method for manufacturing the posterior decompression bite plate, the step of forming the reserved space of the posterior decompression bite plate based on the upper jaw dentition and the lower jaw dentition includes: generating a retainer model based on the upper jaw dentition or the lower jaw dentition, wherein the retainer model comprises opposite palatal side walls and buccal side walls and an occlusal surface connected between the palatal side walls and the buccal side walls, the palatal side walls and the buccal side walls are respectively wrapped on the inner surface and the outer surface of the upper jaw dentition or the lower jaw dentition, and the occlusal surface is wrapped on the occlusal surface of the upper jaw dentition or the lower jaw dentition; and forming an occlusion guide body on an occlusal surface of the retention body model, supporting the occlusion guide body on the opposite jaw dentition, and forming an occlusal surface on the surface of the occlusion guide body supported on the opposite jaw dentition.

The posterior decompression occlusal plate manufactured by the manufacturing method is characterized in that the posterior decompression occlusal plate is fixed on a tooth row by using a retainer of the posterior decompression occlusal plate, an occlusion guide body is abutted against an occlusal surface of jaw teeth, and a central relation position can be established at a lower jaw position represented by a condyloid process by using the occlusion guide body, so that vertical decompression support is provided for the jaw teeth, and vertical decompression to joints is realized, so that the closing force of rhythmic masticatory muscles in sleep can be resisted, the joint disorder structure returns to normal, the damaged joint structure can be recuperated and regenerated, and the treatment effect of treating temporomandibular joint disorder syndrome by using the posterior decompression occlusal plate is improved. In addition, the posterior decompression occlusal plate can eliminate functional muscle interference between the jaw teeth during forward extension or lateral movement, so that a joint disc can be activated in a temporomandibular joint, the activity of cranio-mandibular nerve muscles is recovered, a mandibular movement space is liberated, the self-adjustment of the mandibular position is realized, and the treatment effect of treating temporomandibular joint disorder syndrome by using the posterior decompression occlusal plate is further improved.

In addition to the technical problems, technical features constituting technical aspects, and advantageous effects brought by the technical features of the above-described embodiments of the present invention, other technical problems, technical features included in the technical aspects, and advantageous effects brought by the technical features that can be solved by the posterior teeth decompression bite plate and the method for manufacturing the same according to the embodiments of the present invention will be further described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a posterior tooth pressure relief bite plate provided in accordance with an embodiment of the present invention;

fig. 2 is an exploded view of the posterior decompression bite plate of fig. 1;

fig. 3 is a flow chart illustrating a process for manufacturing a posterior tooth pressure relief bite plate according to an embodiment of the present invention;

FIG. 4 is a flowchart illustrating a specific process of step 300 in FIG. 3.

Description of reference numerals:

10-a retainer; 11-buccal sidewall; 12-the palatal lateral wall;

13-occlusal surface; 20-an occlusion guide; 21-occlusal surface;

21 a-a support surface; 21 b-guide surface.

Detailed Description

The traditional occlusal splint has insufficient dynamic vertical decompression to the temporomandibular joint intracapsular structure, and does not fully mobilize the self-adjusting ability of the masticatory organ, resulting in poor treatment effect of the occlusal splint.

In view of this, an embodiment of the present invention provides a posterior decompression bite plate, which can adjust the biting relationship between the upper jaw and the lower jaw and vertically decompress the temporomandibular joint, so as to resist the closing force of the rhythmic masticatory muscle during sleep, return the joint disorder structure to normal, recuperate and regenerate the damaged joint structure, and improve the treatment effect of treating temporomandibular joint disorder syndrome by using the posterior decompression bite plate. Meanwhile, functional muscle interference between the jaw teeth during forward extension or lateral movement can be eliminated, so that a joint disc can be activated in a temporomandibular joint, the activity of cranial-mandibular nerve and muscle is recovered, a mandibular movement space is liberated, self-adjustment of the mandibular position is realized, and the treatment effect of treating temporomandibular joint disorder syndrome by using a posterior teeth decompression occlusal plate is further improved.

In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. 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 invention.

In order to more clearly understand the embodiments of the present invention, the meaning of the temporomandibular joint and the technical terms involved in the embodiments of the present invention will be briefly described below:

temporomandibular joint: the mandibular joint for short consists of a mandibular condyloid process, a temporal bone joint surface, a joint disc between the condyloid process and the temporal bone joint surface, a joint capsule around the joint, joint ligaments and the like, wherein the joint ligaments comprise a temporal mandibular ligament, a sphenoid mandibular ligament and a styloid mandibular ligament and are used for suspending the mandible and maintaining the mandible to move within a normal range. The temporomandibular joint is a left and right bilateral linkage joint for jaw face displacement, has certain stability and multidirectional mobility, allows the mandible to be lifted, lowered, advanced, retreated and moved laterally, and realizes mouth opening, mouth closing and chewing movement under the action of masticatory muscles around the temporomandibular joint.

Dentition: it refers to an arch shape in which teeth are arranged in a certain order, direction and position on the upper jaw or the lower jaw, wherein the dentition on the upper jaw is called as the maxillary dentition, and the dentition on the lower jaw is called as the mandibular dentition. The upper jaw dentition and the lower jaw dentition are occluded together according to a certain corresponding relation, the concave-convex structures of the occlusion surfaces are closely contacted, and functional activities such as chewing and the like are completed in the repeated occlusion movement process of contact-separation-contact-re-separation.

Centering the jaw position: when the upper and lower jaw dentitions are contacted together, the anterior teeth are normally covered, and the posterior teeth are in a contact relationship of tip socket staggering, which is also called as tip socket staggering; the maxillomandibular relationship is now the most widely connected. Clinically, if there are dental caries, tooth loss, temporomandibular joint disorder inflammation, inflammation or loss of maxillary and mandibular bones, the relationship between the above-mentioned medial relation and the medial jaw position will be dislocated.

Median relation position: refers to the medial posterior position of the mandibular condyloid process in the glenoid fossa, while the physiological posterior position, in which the surrounding tissue is not constrained, is called the medial relationship position, also known as the ligamentous margin position. The neutral position is normally a tension edge position and is located within about 1mm behind the neutral jaw position.

Fig. 1 is a schematic structural view of a posterior tooth pressure relief bite plate provided in accordance with an embodiment of the present invention, and fig. 2 is an exploded view of the posterior tooth pressure relief bite plate of fig. 1.

As shown in fig. 1 and 2, the posterior decompression bite plate provided by the embodiment of the present invention comprises a retainer 10 and an occlusion guide 20, wherein the retainer 10 has an arcuate shape extending in a direction corresponding to the dentition. The retainer 10 comprises a palatal side wall 12 and a buccal side wall 11 which are oppositely arranged, and an occlusal surface 13 connected between the palatal side wall 12 and the buccal side wall 11, wherein the palatal side wall 12, the buccal side wall 11 and the occlusal surface 13 enclose a mouthpiece for retaining to a dentition, and the mouthpiece can be wrapped on the dentition and used for fixing the retainer 10 on the dentition and preventing the retainer 10 from falling off from the dentition.

Occlusion guide 20 is positioned in the molar area of retainer 10, e.g. at a corresponding second molar on retainer 10, occlusion guide 20 comprising an occlusal surface 21 abuttable against the opposing jaw teeth. The bite guide 20 is used to distract the maxillary and mandibular dentition and to enable the mandibular condyloid process to recede to the marginal position limited by the temporal mandibular ligament. By using the occlusion guide body 20, the temporomandibular joint can be decompressed vertically to resist the rhythmic masticatory muscle closing force during sleep, and the neuromuscular can be guided to regulate the disordered structure in the temporomandibular joint capsule.