CN216167947U - Traction device for embedded tooth - Google Patents
Traction device for embedded tooth Download PDFInfo
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- CN216167947U CN216167947U CN202122540270.XU CN202122540270U CN216167947U CN 216167947 U CN216167947 U CN 216167947U CN 202122540270 U CN202122540270 U CN 202122540270U CN 216167947 U CN216167947 U CN 216167947U
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
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Abstract
The utility model provides an embedded tooth traction device which comprises a retention plate, a connecting rod and a traction hook, wherein one end of the connecting rod is connected with the retention plate, the other end of the connecting rod is connected with the traction hook, and scales are arranged on the connecting rod.
Description
Technical Field
The utility model relates to the field of oral clinical medicine, in particular to an embedded tooth traction device.
Background
The buried teeth refer to teeth which have passed the eruption period and still can not erupt in the jaw bone tissues, the incidence rate is higher and is about 25% -50%, and the buried teeth are usually generated at the positions of third molar (the incidence rate is 3.63% -31.98%), maxillary canine (the incidence rate is 0.77% -7.92%), maxillary incisors (the incidence rate is 0.06% -0.2%), mandibular canine (the incidence rate is 0.92% -5.1%) and the like.
The buried teeth are the common cause of malocclusion and deformity, and if not treated in time, the buried teeth will affect the adjacent important anatomical structures or be forced to be removed due to abnormal tooth root development, affect the chewing function and the appearance, and seriously affect the pronunciation, the appearance and the psychology of patients. The ratio of palatal arrest is reported to be higher in an embedded tooth than buccal arrest, and the ratio of palatal arrest varies from 1: 2 to 1: 9. In the case of maxillary canine teeth, palatal impaction accounts for approximately 85%, and buccal impaction accounts for 15%. Due to the anatomical position, the self shape and the like, 50.31 percent of the embedded teeth are surgically extracted, and 31.68 percent of the embedded teeth are surgically windowed to guide the orthodontic traction.
At present, when the traction treatment of the embedded tooth is clinically carried out, the mode of combined treatment of window opening and orthodontic traction is usually adopted for sprouting assistance in a surgical operation, the principle is that the CBCT and the X-ray film of the embedded tooth are shot to judge the possible range of the embedded traction and the bone removal range, then part of alveolar bone is removed through surgical window opening, the dental crown of the embedded tooth is exposed, and the finished chain-shaped tongue side buckle or the bracket is bonded in a matching way, and simultaneously the orthodontic treatment mainly for fixing orthodontics is matched, so that the embedded tooth enters the corresponding tooth position, and the malocclusion deformity is solved. When the traction of the buried teeth is carried out, the palatine side occlusion is caused because the palatine side mucous membrane in the anatomical structure is thick and is fragile and has no deformability, meanwhile, the relative visual field of the palatine side operation is poor, the traction direction is difficult to judge well, and a proper traction piece and a matched traction method are lacked, so that the partial palatine side buried teeth are easy to fail in traction. The success rate of traction for palatine side buried teeth is reported to be about 70%, much lower than buccal side stopping teeth (90%).
Problems with current traction treatments for an embedded tooth include:
(1) the problem of difficult traction caused by poor visual field and complex position;
(2) the pull tongue side buckle and the bracket falling rate are high;
(3) the direction of the traction force cannot be well controlled by the traction piece;
(4) the traction piece can not quantitatively or visually display the traction amount at each time, and the like, so that the traction is easy to fail.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problems, the present invention provides an embedded tooth traction device, which includes a retention plate, a connecting rod and a traction hook, wherein one end of the connecting rod is connected with the retention plate, the other end of the connecting rod is connected with the traction hook, and the connecting rod is provided with scales.
Further, the retention plate has a curved structure to define an outer curved surface and an inner curved surface, and the connecting rod is connected to the outer curved surface of the retention plate.
Further, the contour of the inner curved surface is adapted to the contour of the target crown.
Further, the section of the connecting rod perpendicular to the extending direction of the connecting rod is circular, oval or round-corner polygon.
Furthermore, a through hole is formed in the position fixing plate.
Furthermore, the retention plate, the connecting rod and the traction hook are made of metal materials.
Further, the retention plate, the connecting rod and the towing hook are integrally formed.
Further, the number of the towing hook is at least 1.
Further, the inner curved surface is subjected to roughening treatment.
Further, the rest surfaces of the position-retaining plate except the inner curved surface and the outer surface of the connecting rod are polished.
The utility model relates to an embedded tooth traction device, which aims to improve the traction success rate of embedded teeth (especially palatal side embedded teeth) and shorten the treatment course of the embedded teeth in the traction treatment of the embedded teeth. The traction device for the embedded tooth improves the bonding effect with the dental crown of the embedded tooth, and is not easy to fall off; the connecting rod is provided with quantitative scale indexes, and the traction amount of the embedded tooth at each time can be accurately quantized, so that the embedded tooth is efficiently and orderly pulled; the traction hook is suitable for controllably realizing multi-angle and multi-directional traction; the posture of the embedded tooth can be reflected through the posture of the traction hook, and the position of the embedded tooth can be better mastered through matching with the scale of the connecting rod.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an implantable dental distraction device according to the utility model;
FIG. 2 is a schematic structural view from another perspective of an embodiment of an implantable dental distraction device according to the utility model;
FIG. 3 is a schematic structural view of an embodiment of the present invention showing an embodiment of an implantable dental traction device, wherein Roman numerals are provided on the connecting rods;
fig. 4 is a schematic structural view of an embedded tooth traction device according to another embodiment of the utility model, wherein the end of the traction hook is provided with an enlarged bulb structure.
Description of reference numerals:
100-a retention plate, 101-an outer curved surface,
102-inner curved surface, 103-through hole,
200-connecting rod, 201-graduation line,
300-towing hook, 301-ball structure.
Detailed Description
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The drawings are schematic diagrams or conceptual diagrams, and the relationship between the thickness and the width of each part, the proportional relationship between the parts and the like are not completely consistent with actual values.
Fig. 1 and 2 show a schematic structural view of an embodiment of an embedded tooth traction device of the present invention, which comprises a retention plate 100, a connecting rod 200 and a traction hook 300.
The retention plate 100 has a curved configuration defining an outer curved surface 101 and an inner curved surface 102. Preferably, the inner curved surface 102 is contoured to fit the crown of the embedded tooth such that the retention plate is adapted to attach to the crown of the embedded tooth. In some embodiments, the shape of the retention plate 100 is defined or generated from a three-dimensional image of an embedded tooth generated based on the CBCT of the patient, attached to the location of the embedded tooth as needed, with the contour of the location determining the contour of the inner curved surface 102 of the retention plate 100, and part or all of the outer curved surface 101 may be defined by a surface equidistant from the inner curved surface 102, with the outer curved surface 101 also having substantially the same contour as the inner curved surface 102, and the distance therebetween defining the thickness of the retention plate 100.
The retention plate 100 is further provided with through holes 103, and preferably a plurality of through holes 103 are distributed at different positions of the retention plate 100, so as to facilitate the light curing projection required for bonding the retention plate 100 with the embedded tooth.
In some embodiments, the inner curved surface 102 of the retention plate 100 is also roughened to further enhance the adhesion of the retention plate 100 to the embedded tooth.
The connecting rod 200 is a rod-shaped member extending along a straight line, and one end of the rod-shaped member is connected to the retaining plate 100, and more particularly, to the outer curved surface 101 of the retaining plate 100. The extension direction of the connecting rod 200 is preferably coincident with the long axis direction of the embedded tooth. The shape of the connecting rod 200 may be a cylinder, an elliptic cylinder, or a polygonal cylinder with rounded corners, such as a rounded quadrilateral cylinder, a rounded triangular cylinder, etc.; or the section of the connecting rod 200 perpendicular to the extending direction thereof is circular, oval or rounded polygon, such as rounded quadrangle, rounded triangle, etc.
The connecting rod 200 is further provided with a plurality of scale marks 201, and the scale marks 201 are arranged at equal intervals, such as a distance of 1 mm. The scale mark 201 facilitates the clinician to observe the traction condition of the embedded tooth. In the present embodiment, the graduation line 201 is defined by a groove on the outer periphery of the connecting rod 200, and likewise, the graduation line 201 may be defined by a protrusion; each scale mark 201 is a closed curve surrounding the outer circumference of the connecting rod 200, the closed curves are in the same plane, and the plane is perpendicular to the extending direction of the connecting rod 200.
In other embodiments, the connecting rod 200 is provided with a symbol mark corresponding to the graduation mark 201, such as a numeric symbol mark or an alphabetical symbol mark indicating the order of the graduation marks, in addition to the graduation mark 201. As shown in FIG. 3, the order numbers I, II, III, IV, V are labeled with Roman numerals above the corresponding tick marks 201 so that the clinician can identify the corresponding tick marks. While the Roman numerals in FIG. 3 are aligned along the direction of extension of the connecting rod 200, in other embodiments, the Roman numerals are angularly offset on respective sides or circumferentially of the connecting rod 200 so that at least one sequential number is always visible even at different viewing angles.
The traction hook 300 is connected to the other end of the connecting rod 200 away from the retention plate 100 for enabling the traction chain/wire to hook the traction hook 300 to achieve traction of the embedded tooth during the treatment. In this embodiment, the towing hook 300 is of an arc-shaped hook structure, and the number of the towing hook 300 is 2, and in practical application, on the premise that the shape of the towing hook 300 is suitable for connecting a towing chain/line, a plurality of different shape structures can be adopted, and the corresponding number is set according to needs, which is not limited herein.
In other embodiments, the end of the towing hook 300 is configured to be thicker than the rest, and as shown in fig. 4, the end of the towing hook 300 is configured to be an enlarged ball-shaped structure 301, thereby further preventing the towing chain/wire from slipping out.
In some embodiments, the length of the connecting rod 200 and the number and direction of the traction hooks 300 are determined according to the thickness of the soft tissue of the mucosa on the surface of the embedded tooth and a preset traction path of the embedded tooth, so that the traction hooks 300 can be always exposed in the oral cavity in a multi-angle and multi-directional traction process and cannot be hung and dragged due to the fact that the embedded tooth is wrapped by the soft tissue. When the retention plate 100 is attached to the embedded tooth, the length of the attachment rod 200 is preferably such that it is about 1mm above the superficial mucosal soft tissue.
In this embodiment, the position fixing plate 100, the connecting rod 200 and the towing hook 300 may be integrally formed by 3D printing, the printing material may be selected from a metal material, such as stainless steel, nichrome, cobalt-chromium alloy, etc., or the wax pattern may be printed by a 3D printer, and then the metal material may be cast. The inner curved surface 102 of the retention plate 100 is roughened, and the rest of the traction device for the embedded teeth is polished.
The structure and the manufacturing of the traction device for an embedded tooth according to the present embodiment will be further described below with reference to the digital auxiliary treatment method for an embedded tooth.
The conventional intraoral three-dimensional image reconstruction method mainly comprises the following steps:
(1) introducing three-dimensional editing software (such as Dolphin, ProPlan, Geomagic and the like) by using CBCT of the dentition of the oral cavity of a patient, and completing reconstruction of a tooth root and an alveolar bone in the three-dimensional editing software;
(2) acquiring 3D scanning model data in the mouth of a patient by using an intraoral scanner so as to complete reconstruction of the dental crown and soft tissue in the mouth;
(3) fitting the obtained data of the tooth root and the alveolar bone and the data of the dental crown and the soft tissue in the mouth can completely reconstruct the three-dimensional images of the tooth, the alveolar bone and the soft tissue.
According to the three-dimensional image obtained above, a clinician can more intuitively obtain the position of the embedded tooth and the relative position thereof with other teeth, alveolar bones and soft tissues, so that the embedded tooth traction treatment scheme, the traction path and the design of the traction device can be performed accordingly.
On the premise that a traction treatment scheme is determined, the traction device for the embedded tooth can be better matched with a preset scheme to realize a desired traction path. The shape of the retaining plate 100 of the traction device for the embedded tooth, in particular to the contour of the inner curved surface 102 of the retaining plate 100, can be determined according to the surface contour of the dental crown of the embedded tooth exposed after the operation windowing, or the bonding surface of the traction device for the embedded tooth and the embedded tooth can be determined according to the preset traction treatment scheme, namely the contour of the inner curved surface 102 is limited, and the main body structure of the retaining plate 100 can be obtained by arranging a certain thickness on the basis of the contour of the inner curved surface 102. The extending direction of the connecting rod 200 is preferably consistent with the long axis direction of the embedded tooth; the length of the connecting rod 200 and the number and direction of the traction hooks 300 can be determined according to the thickness of the soft tissue of the mucosa on the surface of the embedded tooth and the preset traction path in the traction treatment scheme, so that the traction hooks 300 can be always exposed in the oral cavity in the multi-angle and multi-direction traction process, and the phenomenon that the traction hooks cannot be hung due to the fact that the traction hooks are wrapped by the soft tissue due to invagination is avoided. When the retention plate 100 is attached to the embedded tooth, the length of the attachment rod 200 is preferably such that it is at least 1mm above the superficial mucosal soft tissue.
In other embodiments, the configuration of the hook 300 is defined according to the sagittal (bucco-lingual) position of the embedded tooth, and in particular, the direction and configuration of the hook 300 exposed on the oral side is approximately the projection of the embedded tooth crown in the mouth, thereby facilitating the clinician to visually observe and judge the change of position and angle such as tooth torque.
After the overall structure of the traction device for the embedded tooth (including the retention plate 100, the connecting rod 200 and the traction hook 300) is determined, a 3D model file (such as an STL file) is generated, and the traction device for the embedded tooth of the embodiment is formed through 3D printing.
The three-dimensional modeling and the 3D printing for obtaining and using the model data may adopt the existing methods in the field, for example, chinese patent application with application number 201911352956.7 entitled "method for designing traction of embedded tooth in cooperation with 3D printing model" discloses a technical scheme for designing traction path of embedded tooth through three-dimensional modeling, and chinese patent application with application number 201911247453.3 entitled "method for manufacturing individualized bone fenestration guide plate for embedded tooth" discloses a technical scheme for manufacturing an auxiliary device based on intraoral scanner and CBCT data and using 3D printing technology. The utility model provides the embedded tooth traction device which can be prepared by adopting the existing digital method (such as 3D printing) and is suitable for being matched with the existing digital method to carry out the embedded tooth traction treatment, so that a clinician is assisted to more easily grasp the position of an embedded tooth and control a traction path in the traction process, and the treatment can achieve the expected effect.
The use of the present embodiment of the traction device for an embedded tooth is further described below.
The surgical operation is performed to remove the bone and open the window to expose the crown of the embedded tooth, and the embedded tooth traction device of the embodiment is adhered to the embedded crown by the adhesive material, specifically, the inner curved surface 102 of the retention plate 100 is adhered to the corresponding embedded tooth surface (conforming to the contour of the inner curved surface 102). Subsequently, a light-curing projection is performed, and the through holes 103 on the position-fixing plate 100 facilitate the projection light to irradiate on the adhesive material.
The traction chain/wire is arranged on the traction hook 300 to carry out traction on the embedded tooth, and in the return visit of a patient during traction treatment, a clinician can accurately measure and control the traction amount of the embedded tooth at different periods according to the scale mark 201 on the connecting rod 200, and can know the posture of the current embedded tooth through the posture of the traction hook 300 in the oral cavity, so that the traction direction and the force of the embedded tooth are pertinently adjusted until the embedded tooth is pulled to a desired position.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides an embedding tooth draw gear which characterized in that, includes retention board, connecting rod and draws the hook, the one end of connecting rod with the retention board is connected, the other end with draw the hook and be connected, be provided with the scale on the connecting rod.
2. The implantable dental distraction device of claim 1, wherein said retention plate has a curved configuration defining an outer curved surface and an inner curved surface, said connecting rod being attached to said outer curved surface of said retention plate.
3. The implantable dental distraction device of claim 2, wherein the contour of the inner curved surface conforms to the contour of a target crown.
4. The traction device according to claim 1, wherein the cross-section of the connecting rod perpendicular to the extension direction thereof is circular, oval or rounded polygon.
5. The traction device according to claim 1, wherein the retention plate is provided with a through hole.
6. The traction device for an embedded tooth as claimed in claim 1, wherein the retention plate, the connecting rod and the traction hook are made of metal material.
7. The device as claimed in claim 1, wherein the retention plate, the connecting rod and the towing hook are integrally formed.
8. The buried tooth traction device of claim 1, wherein the number of said traction hooks is at least 1.
9. The traction device as claimed in claim 2, wherein said inner curved surface is roughened.
10. The traction apparatus according to claim 2, wherein the remaining surfaces of the retention plate excluding the inner curved surface and the outer surface of the connecting rod are polished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122321204 | 2021-09-24 | ||
| CN2021223212043 | 2021-09-24 |
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| CN216167947U true CN216167947U (en) | 2022-04-05 |
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| CN202111228514.9A Pending CN113907902A (en) | 2021-09-24 | 2021-10-21 | Traction device for embedded tooth |
| CN202122540270.XU Active CN216167947U (en) | 2021-09-24 | 2021-10-21 | Traction device for embedded tooth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113907902A (en) * | 2021-09-24 | 2022-01-11 | 上海交通大学医学院附属第九人民医院 | Traction device for embedded tooth |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115153903B (en) * | 2022-06-22 | 2023-11-21 | 厦门医学院附属口腔医院(厦门市口腔医院) | Device for controlling trend of long axis of tooth body during traction of buried tooth and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2897189Y (en) * | 2006-03-27 | 2007-05-09 | 徐葆琛 | Impacted tooth guiding-out device |
| CN103330600B (en) * | 2013-07-08 | 2015-11-04 | 季骏 | Multi-functional embedded tooth traction correcting external member |
| CN205913413U (en) * | 2016-06-16 | 2017-02-01 | 广州瑞通生物科技有限公司 | Customization is hidden tooth and is pull orthotic devices |
| CN209253201U (en) * | 2018-05-23 | 2019-08-16 | 上海交通大学医学院附属第九人民医院 | Buried Teeth cheek side approach pulls out guide plate |
| CN112754695A (en) * | 2021-01-18 | 2021-05-07 | 四川大学 | 3D printing type personalized traction device for upper jaw embedded anterior teeth and 3D printing method |
| CN113907902A (en) * | 2021-09-24 | 2022-01-11 | 上海交通大学医学院附属第九人民医院 | Traction device for embedded tooth |
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2021
- 2021-10-21 CN CN202111228514.9A patent/CN113907902A/en active Pending
- 2021-10-21 CN CN202122540270.XU patent/CN216167947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113907902A (en) * | 2021-09-24 | 2022-01-11 | 上海交通大学医学院附属第九人民医院 | Traction device for embedded tooth |
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