CN114145864A - Multidimensional traction type personalized correction device for embedded teeth - Google Patents
Multidimensional traction type personalized correction device for embedded teeth Download PDFInfo
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- A—HUMAN NECESSITIES
- 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
- A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
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- A—HUMAN NECESSITIES
- 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
- A61C7/002—Orthodontic computer assisted systems
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Abstract
The invention belongs to the field of correction devices, and particularly relates to a multi-dimensional personalized correction device for traction of an embedded tooth. Aiming at the problems that the existing embedded teeth are various in types and different in complexity, the eruption channel is not always straight, and the roots of the adjacent teeth can be quickly and widely absorbed by blind traction when the affected tooth is tightly connected with the roots of the adjacent teeth; the invention can make up the defects of the traditional correction device in the traction of the complex buried teeth, and provides a personalized correction device capable of drawing the complex buried teeth with non-linear eruption channels so as to ensure the smooth eruption of the buried teeth and the health of the roots of the adjacent teeth.
Description
Technical Field
The invention relates to the technical field of correction devices, in particular to a personalized correction device for a multi-dimensional traction buried tooth.
Background
Eruption disorder is a common clinical condition with an incidence of about 18%, most frequently involving the third molar, followed by the cuspid and second molar; the embedded tooth not only affects the beauty and the function, but also easily presses the root of the adjacent tooth to cause the absorption of the root or the formation of cyst, and the treatment of the embedded tooth is very necessary in time; the existing treatment method mainly comprises the steps of removing or traction and eruption; the position of the embedded tooth is generally deep, the embedded tooth can be removed only by turning over a flap and removing bones, important tissue structures such as neurovascular and the like are easily damaged, the operation risk is high, and the possibility of infection after the operation of a patient with a large wound surface exists; in contrast, the third molar traction can replace the dentition defect caused by caries or congenital missing teeth, the cuspid traction can restore the integrity of the dentition, and the occlusion relation and the central line of the anterior dental area are adjusted; in conclusion, traction can make patients feel comfortable, bring good aesthetic effect and functional recovery, and is a better treatment method.
The traditional germination-assisting method comprises the following steps: 1. the teeth separating ring helps sprout: the method comprises the steps that an elastic tooth dividing ring is placed in a contact area between a near-middle marginal ridge of an embedded tooth and an adjacent tooth to be loosened, and the tooth is promoted to erupt automatically; the defect is that the application range is narrow, the tooth-dividing ring can only be used for the light embedded tooth with the inclination of the mesial region, and the tooth-dividing ring is movable, so that the risk of mistaken swallowing is caused; 2. vertical bow-assisted sprouting: bending an arch wire of 0.017 x 0.125 into a vertical auxiliary arch, inserting the vertical auxiliary arch into a buccal tube, and matching with a spiral spring and a U-shaped bent vertical tooth; the method has single force application direction and limited anchorage, and is not suitable for the embedded tooth in the area except the free end; 3. direct traction assisted sprouting: after windowing, connecting the embedded teeth and the main arch wire through ligature wires, and applying traction force by using adjacent teeth on two sides as anchorage; the method is mainly used for anterior teeth, and has the defect that long-time traction can cause the inclination of adjacent teeth to the clearance of the embedded teeth.
The prior art has the following defects: the types of the embedded teeth are various, the complexity is different, the eruption channel is not straight line, the connection between the affected tooth and the tooth root of the adjacent tooth is tight, and the tooth root of the adjacent tooth can be rapidly and widely absorbed by blind traction; the sectional traction is more reasonable, and the problem of complex buried teeth is solved, so that the affected teeth can avoid the tooth roots of the adjacent teeth by decomposing the complex traction path; generally divided into two stages: in the first stage, the eruption passage obstacle is removed, and the dental crown is adjusted to a reasonable position; and in the second stage, the vertical direction of the teeth is drawn to the closed direction until the embedded teeth reach the closed plane.
In addition, the best position for the implanted gingival retraction is the alveolar crest, and good attached gingival and alveolar bone height can be obtained when the affected tooth is retracted from the position; the traditional orthodontic appliance for the buried teeth has strict indication, single traction direction and easy loss of anchorage, and is difficult to adjust the affected teeth to an ideal position when facing the problem of complicated buried teeth; therefore, an individual traction device is clinically needed, the traction force and the traction direction can be flexibly controlled according to the specific situation of different individual complex embedded teeth, the affected teeth can be erupted along the optimal eruption route step by step, and the adjacent teeth are protected and good gum appearance is obtained.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the types of the embedded teeth are various, the complexity is different, the eruption channel is not always a straight line, the connection between the affected tooth and the tooth root of the adjacent tooth is tight, and the tooth root of the adjacent tooth can be quickly and widely absorbed by blind traction; the traditional buried tooth appliance has the defects of strict indication, single traction direction, easy loss of anchorage and difficulty in adjusting the affected tooth to an ideal position in the case of complicated buried tooth, and provides a multi-dimensional traction buried tooth personalized appliance; the invention aims to make up the defects of the traditional correction device in the traction of complex buried teeth, and provides a personalized correction device capable of drawing complex buried teeth with non-linear sprouting ways so as to ensure the smooth sprouting of the buried teeth and the health of the roots of adjacent teeth.
In order to achieve the purpose, the invention adopts the following technical scheme:
a personalized correction device for multi-dimensional traction embedded teeth comprises a retention part, a traction part, a stress application part and a connecting part, wherein the retention part is a belt ring or a retention support; the adhesive is used for being bonded on the anchorage tooth to play a role in retention;
the traction part comprises a traction device on the embedded tooth and a traction device on the anchorage tooth; wherein the traction device on the embedded tooth is an anchor hook, and the anchor hook is composed of a traction hook, a small connector and an adhesive bottom plate; wherein the bonding bottom plate is bonded and fixed on the shaft surface of the buried tooth and is integrated with the small connector and the traction hook; the traction device on the anchorage tooth consists of a cantilever and suspension buttons, the cantilever extends out from the belt ring, and a plurality of suspension buttons are uniformly distributed on the cantilever at intervals;
the stress application part is an elastic rubber chain or a metal ligature wire and is used for connecting a suspension button on a cantilever of the anchorage tooth and a traction hook of the embedded tooth and is selected according to the magnitude of required force;
the connecting part is a large connecting body, and the large connecting body comprises a palate rod or a tongue rod and is used for connecting the bilateral retainer;
the small connector is used for connecting the bonding bottom plate of the anchor hook with the traction hook.
Preferably, the retention part, the traction part and the connecting part adopt a patient oral scanning three-dimensional model to replace a traditional plaster model during design, so that the oral structure is restored more truly, and the accuracy of the correction device is improved.
Preferably, the retention part, the traction part and the connecting part are integrally formed by adopting an advanced metal 3D printing technology during manufacturing, and the retention part, the traction part and the connecting part have uniform components, compact tissues and good biomechanical properties.
Preferably, the bonding bottom plate of the anchoring hook is divided into a tissue surface with grid distribution and a smooth surface without grid distribution; the grids of the tissue surface with grid distribution are bonded with the axial surface of the embedded tooth, so that the bonding force is enhanced; the smooth surface without grid distribution, namely the surface of the component, is in contact with soft tissues around the embedded tooth, so that the occurrence of bacterial adhesion and inflammation can be reduced.
Preferably, the number of the wings of the traction hook of the anchoring hook is 2-4, and the wings can be individually designed according to the traction scheme of the embedded tooth so as to adjust the traction direction in a matching manner.
Preferably, the running and the number of the cantilevers are individually designed according to the traction scheme of the embedded teeth, the number of the cantilevers is 1-2, and the cantilevers can be branched and segmented to be matched with the segmented traction of the embedded teeth.
Preferably, the suspension button comprises a head part and a neck part, wherein the head part is of a spherical structure with the diameter of about 1-1.5mm, and the neck part is of a columnar structure with the diameter of about 0.5-0.8 mm; the number of the hanging buttons is not fixed, and the hanging buttons are uniformly distributed along the cantilever at intervals; the flexible control of the direction and the magnitude of the traction force can be realized by selecting different hanging buttons.
Preferably, the free end of the stress application part is respectively connected with a traction device on the embedded tooth and a traction device on the anchorage tooth, and the stress application part is positioned between the cantilever and the suspension button and between the traction hook and the small connecting body.
Preferably, the large connecting body is a palatal bar or a lingual bar, the palatal bar and the lingual bar are respectively used on the palatal side of the upper jaw and the lingual side of the lower jaw, and the large connecting body is 2mm away from the mucous membrane to prevent compression on soft tissues.
Preferably, the small connector is a smooth cylindrical structure with the diameter of 0.5-0.8mm, so that the retention of food residues and the risk of bacterial infection can be reduced.
The use method of the personalized correction device for the traction of the complex buried teeth mainly comprises the following steps:
step S1: carrying out oral scanning or CBCT scanning on a patient, and acquiring morphological structure data of soft and hard tissues in the mouth; converting the scanning data into a 3D model by using computer software, cutting out an upper dentition model and a lower dentition model, and slightly trimming the edges;
step S2: according to the position of the embedded tooth in the alveolar bone, the rotation degree of the tooth, the shaft inclination angle and the position relation with an adjacent tooth, the traction route of the complex embedded tooth is decomposed into a plurality of stages so as to relieve the barrier factors on the eruption path;
step S3: designing a traction device for correcting the embedded teeth on the 3D model of the dentition according to a traction scheme; designing the quantity, distribution and shape of the cantilevers according to the sectional type traction path of the embedded tooth, so that the cantilevers are adaptive to the traction path of each stage of the embedded tooth; finally, selecting proper teeth as anchorage teeth and designing a retention part and a large connector;
step S4: adopting a metal 3D printing technology, integrally molding the designed correction device, performing accurate matching on the plaster model and slightly finishing;
step S5: trial wearing is carried out in the mouth of a patient, so that the device is well retained without tilting, meanwhile, the connector is 2mm away from gum tissue, the position of the cantilever is debugged, and the gum is prevented from being pressed;
step S6: the shaft surface of the embedded tooth is exposed through the window, the bonding bottom plate is bonded on the shaft surface of the embedded tooth through bonding agent, and the fixing component is bonded on the anchorage tooth; according to a sectional type traction scheme, selecting a suspension button on a cantilever in a corresponding direction, and connecting a multi-wing traction hook with the suspension button by using a traction part to apply traction;
step S7: in the process of sectional traction, the CBCT examination is performed on the patient in stages, and the position change of the embedded tooth is observed; when the direction of the embedded tooth is adjusted to the expected position of the stage, starting traction treatment of the next stage; selecting a new suspension button to adjust the magnitude and direction of the traction force so as to avoid obstacles in a sprouting channel and reduce the absorption risk of the roots of adjacent teeth; the device can be disassembled after the embedded tooth is smoothly drawn to the desired position.
Compared with the prior art, the invention has the beneficial effects that:
1. the traction treatment device can be used for traction treatment of complex embedded teeth, the accurate design is carried out on the three-dimensional model according to the positions of the embedded teeth of different patients, and the obstacle of an emergent path is removed by decomposing a complex traction route;
2. the embedded tooth can obtain good gingival shape: the optimal emergence position of the embedded tooth is the alveolar ridge crest, the affected tooth can obtain a good gum appearance when erupting from the position, and the stage fine adjustment is carried out on the emergence track by adopting sectional traction so as to ensure that the affected tooth erupts from the alveolar ridge crest;
3. the control to the direction and the magnitude of the traction force is flexible: the flexible control of the direction and the magnitude of the traction force can be realized by selecting different cantilevers or different suspension buttons;
4. the position of the correcting device is prevented from being repeatedly replaced, and the problem that the position of the correcting device needs to be replaced due to insufficient traction distance caused by the change of the position of the teeth in the correcting process is avoided; the operation times are reduced, and the psychological and economic burden of the patient is relieved;
5. the appliance has good biomechanical performance: the metal 3D printing technology is adopted, so that the finished appliance is uniform in components and compact in tissue, and the adhesion of bacteria and inflammation can be reduced; good biomechanics and greatly improved comprehensive performance compared with the traditional cast appliance.
The invention can make up the defects of the traditional correction device in the traction of the complex buried tooth, and provides the personalized correction device which can pull the complex buried tooth with the non-linear sprouting passage so as to ensure the smooth sprouting of the buried tooth and the health of the tooth root of the adjacent tooth.
Drawings
Fig. 1 is an ipsilateral buccal view of an appliance for correcting maxillary embedded canine teeth in an initial state according to a first embodiment of the personalized correction device for multi-dimensional traction embedded teeth provided by the invention;
fig. 2 is a close-up view of the orthodontic device for correcting the upper jaw embedded cuspid in the initial state according to the first embodiment of the personalized orthodontic device for the multidimensional traction embedded teeth provided by the invention;
fig. 3 is a partial view of the orthodontic device for correcting upper jaw embedded canine teeth in the initial state according to the first embodiment of the personalized orthodontic device for multi-dimensional traction embedded teeth provided by the invention;
fig. 4 is an ipsilateral buccal view of the orthodontic maxillary embedded canine by the appliance at the first stage in the orthodontic process of the first embodiment of the personalized orthodontic device for the multi-dimensional traction embedded canine provided by the invention;
fig. 5 is an ipsilateral buccal view of the orthodontic maxillary embedded canine by the second stage appliance in the orthodontic process of the first embodiment of the personalized orthodontic device for the multi-dimensional traction embedded canine provided by the invention;
fig. 6 is an ipsilateral buccal view of the appliance for correcting the maxillary embedded canine teeth when the correction of the first embodiment of the personalized correction device for the multidimensional traction embedded teeth provided by the invention is completed;
fig. 7 is a combined view of the orthodontic upper jaw embedded middle incisor corrected by the appliance of the second embodiment of the personalized orthodontic device for the multidimensional traction embedded teeth provided by the invention;
fig. 8 is an ipsilateral buccal view of an upper jaw embedded incisor corrected by the corrector of the second embodiment of the personalized correction device for the multi-dimensional traction embedded teeth provided by the invention;
fig. 9 is a front view of the maxillary embedded middle incisor corrected by the appliance according to the third embodiment of the personalized correction device for the multidimensional traction embedded teeth provided by the invention.
In the figure: the device comprises a belt ring 1, a large connecting body 2, a cantilever 3, a hanging button 4, a traction hook 5, a small connecting body 6, a bonding bottom plate 7, a traction part 8 and an anchoring hook 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-6, a multi-dimensional traction type individualized correction device for an embedded tooth comprises a retention part, a traction part 8, a stress application part and a connecting part, wherein the retention part is a belt ring 1, and the belt ring 1 is adhered to an anchorage tooth to play a retention role; the connecting component is a large connecting body 2, and the large connecting body 2 comprises a palate rod (upper jaw) or a tongue rod (lower jaw) and is used for connecting bilateral retainers so as to enhance anchorage; the small connecting body 6 is used for connecting the bonding bottom plate 7 of the anchoring hook 9 with the traction hook 5; the two-side belt rings 1 are connected through a large connecting body 2, so that anchorage can be enhanced;
the traction component 8 is divided into two parts, the traction device embedded on the tooth is an anchor hook 9, and the anchor hook 9 consists of a traction hook 5, a small connector 6 and an adhesive bottom plate 7; wherein the bonding bottom plate 7 is bonded on the axial surface of the buried tooth and is combined with the small connector 6 and the towing hook 5 into a whole; the bonding bottom plate 7 of the anchoring hook 9 is divided into an organization surface with grid distribution and a smooth surface without grid distribution; the grids of the tissue surface are in contact with the axial surface of the embedded tooth, so that the bonding area between the base plate and the tooth surface can be increased, and the bonding force of the base plate is increased; the smooth surface, namely the surface of the base plate, is mainly contacted with soft tissues around the embedded teeth, and the smooth surface can be used for reducing bacterial attachment and inflammation; meanwhile, mucous membrane or tongue body is not easy to scratch; the towing hook 5 of the anchoring hook 9 is provided with a plurality of towing wings, and the towing direction can be adjusted by selecting different wings for towing;
the traction device of the anchorage tooth is composed of a cantilever 3 and a suspension button 4; the cantilever 3 extends out from the belt loop, and a plurality of suspension buttons 4 are uniformly distributed on the cantilever at intervals; the walking and the number of the cantilevers 3 are individually designed according to the traction scheme of the embedded teeth, the number of the cantilevers is 1-2, the cantilevers can be branched and segmented, and the cantilevers can be matched with the segmented traction of the embedded teeth; the hanging button 4 consists of a head part and a neck part, wherein the head part is of a spherical structure with the diameter of about 1-1.5mm, and the neck part is of a columnar structure with the diameter of about 0.5-0.8 mm; the number of the hanging buttons 4 is indefinite, and the hanging buttons are distributed at intervals along the cantilever 3 and can be used for adjusting the direction and the size of the traction force;
the force applying component is usually an elastic rubber chain or a metal ligature wire, is used for connecting a suspension button 4 of an anchorage tooth and a traction hook 5 of an embedded tooth, and can be selected according to the magnitude and elasticity of required force; the spaces used are between the cantilever 3 and the suspension knob 4, between the towing hook 5 and the small connecting body 6.
In this embodiment, the correction method of the correction device includes the following steps:
step S1: carrying out oral scanning or CBCT scanning on a patient, and acquiring morphological structure data of soft and hard tissues in the mouth; converting the scanning data into a 3D model by using computer software, cutting out an upper dentition model and a lower dentition model, and slightly trimming the edges;
step S2: according to the position of the embedded tooth in the alveolar bone, the rotation degree of the tooth, the shaft inclination angle and the position relation with an adjacent tooth, the traction route of the complex embedded tooth is decomposed into a plurality of stages so as to relieve the barrier factors on the eruption path;
step S3: designing a traction device for correcting the embedded teeth on the 3D model of the dentition according to a traction scheme; the quantity, distribution and deformation of the cantilevers 3 are designed according to the sectional type traction path of the embedded tooth, so that the cantilevers are adaptive to the traction path of each stage of the embedded tooth; finally, selecting proper teeth as anchorage teeth and designing a retention part and a large connector 2;
step S4: adopting a metal 3D printing technology, integrally molding the designed correction device, performing accurate matching on the plaster model and slightly finishing;
step S5: trial wearing is carried out in the mouth of a patient, so that the device is well retained without tilting, meanwhile, the connector is 2mm away from gum tissue, and the position of the cantilever 3 is debugged to prevent compressing the gum;
step S6: the shaft surface of the embedded tooth is exposed through the window, the bonding bottom plate 7 is bonded on the shaft surface of the embedded tooth through bonding agent, and the fixing component is bonded on the anchorage tooth; according to a sectional type traction scheme, a suspension button 4 on a cantilever 3 in a corresponding direction is selected, and a multi-wing traction hook 5 is connected with the suspension button 4 by a traction part 8 to apply traction;
step S7: in the process of sectional traction, the CBCT examination is performed on the patient in stages, and the position change of the embedded tooth is observed; when the direction of the embedded tooth is adjusted to the expected position of the stage, starting traction treatment of the next stage; selecting a new suspension button 4 to adjust the magnitude and direction of the traction force so as to avoid obstacles in a sprouting channel and reduce the absorption risk of the roots of adjacent teeth; the device can be dismantled after the embedded tooth is smoothly drawn to a desired position;
the specific implementation steps of the case are as follows: referring to fig. 1, the maxillary canine in the example is a mesial horizontal implant, the crown of which is located on the palatal side of the maxilla, the labial surface of which is closely attached to the palatal surface of the root of the lateral incisor, and the root of which is located below the first premolar root; in order to avoid the absorption caused by touching the tooth root of the lateral incisor in the process of moving the cuspid, the affected tooth is drawn in two stages; in the first stage, the dental crowns of the cuspids are drawn far and far, and the cuspid dental crowns are drawn perpendicularly in the closing direction in the second stage after being in place; according to this segmental traction scheme two booms 3 are designed: one is a horizontal walking shape, and the other is an arc walking shape with a horizontal section and a vertical section;
referring to fig. 2, before the correction starts, a window is opened at the coronal gingiva of the embedded tooth, the axial surface of the embedded tooth is exposed to determine the bonding position, and the bonding base plate 7 is bonded to the axial surface; then, selecting the first premolars and the first molars on both sides as anchorage teeth, and bonding the belt ring 1; the bilateral retainers are connected by the connecting body, and the connecting body is separated from the gum tissue by 2 mm; referring to fig. 4, according to the sectional type traction scheme of the canine teeth, in the first stage, a suspension button 4 on the vertical section of an arc-shaped cantilever 3 is selected, a multi-wing traction hook 5 is connected with the suspension button 4 by using an elastic rubber chain, and the affected teeth are straightened; referring to fig. 5, after a period of traction, CBCT examination is carried out on a patient, and after the crown of the impacted canine tooth is observed to be in place, a hanging button 4 on a horizontal cantilever 3 is selected for carrying out closing vertical traction; referring to fig. 6, the obstacles in the eruption channel are finally and smoothly avoided, the absorption risk of the roots of the adjacent teeth is avoided, the embedded teeth erupt from the ideal position, and meanwhile, the periodontal health of the roots of the adjacent teeth and the embedded teeth is ensured.
Example two
Referring to fig. 7-8, the present embodiment provides: the embedded tooth is a right upper jaw middle incisor, the tooth lip is generated towards high position, the tooth crown of the embedded tooth is firstly drawn to the position and then vertically drawn until the affected tooth reaches a closed plane; therefore, one horizontal cantilever 3 is designed, and a suspension button 4 is respectively arranged at the near center and the far center of the horizontal cantilever; selecting second premolars and first molars on two sides as anchorage teeth, adhering a retention support on the anchorage teeth and connecting the retention support with a palate rod, wherein the palate side of the premolars is provided with a palate support for enhancing anchorage; the anchoring hook 9 is adhered after the window exposes the buried labial surface, and the elastic rubber chain is used for connecting and distributing the hanging buttons 4 for traction.
EXAMPLE III
Referring to fig. 9, the correction of the present embodiment: the embedded tooth is a right maxillary middle incisor, the tooth is completely inverted and impacted, and the vertical traction can be realized only by a large enough anchorage; designing one horizontal cantilever 3, wherein three suspension buttons 4 are distributed at two ends and the middle part; selecting second premolars and first molars on two sides as anchorage teeth, adhering a retention support on the anchorage teeth and connecting the retention support with a palate rod, wherein the palate side of the premolars is provided with a palate support for enhancing anchorage; after the window is opened, the buried palatal surface is exposed, an anchoring hook 9 is adhered, and the traction hook 5 is connected with the hanging buttons 4 at the two ends of the cantilever 3 by using an elastic rubber chain to apply traction; and in the traction process, the anchoring hook 9 on the palate side is replaced to the labial side for continuous traction until the embedded tooth reaches the occlusion plane.
The above is a detailed description of the present invention, and the above examples are illustrative of the correction principle and the implementation steps of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes and modifications made within the spirit of the present invention are covered by the scope of the claims of the present invention.
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CN114748188A (en) * | 2022-04-29 | 2022-07-15 | 首都医科大学附属北京口腔医院 | Adjustable all-dimensional buried tooth traction device |
CN115153903A (en) * | 2022-06-22 | 2022-10-11 | 厦门医学院附属口腔医院(厦门市口腔医院) | Device for controlling long axis direction of tooth body during traction of embedded tooth and manufacturing method |
CN117257497A (en) * | 2022-04-22 | 2023-12-22 | 苏州口腔医院(集团)有限公司 | Multi-tooth-generating traction pulling device on palate side of upper anterior tooth area and traction method thereof |
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CN111419439A (en) * | 2020-04-21 | 2020-07-17 | 暨南大学 | Correction device and correction method for dragging vertical free end impacted molar |
CN113116566A (en) * | 2021-06-04 | 2021-07-16 | 云南省第一人民医院 | A kind of ambush tooth traction device |
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CN111419439A (en) * | 2020-04-21 | 2020-07-17 | 暨南大学 | Correction device and correction method for dragging vertical free end impacted molar |
CN113116566A (en) * | 2021-06-04 | 2021-07-16 | 云南省第一人民医院 | A kind of ambush tooth traction device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117257497A (en) * | 2022-04-22 | 2023-12-22 | 苏州口腔医院(集团)有限公司 | Multi-tooth-generating traction pulling device on palate side of upper anterior tooth area and traction method thereof |
CN114748188A (en) * | 2022-04-29 | 2022-07-15 | 首都医科大学附属北京口腔医院 | Adjustable all-dimensional buried tooth traction device |
CN114748188B (en) * | 2022-04-29 | 2023-07-21 | 首都医科大学附属北京口腔医院 | Adjustable omnibearing embedded tooth traction device |
CN115153903A (en) * | 2022-06-22 | 2022-10-11 | 厦门医学院附属口腔医院(厦门市口腔医院) | Device for controlling long axis direction of tooth body during traction of embedded tooth and manufacturing method |
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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