CN113974884A - Three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction - Google Patents

Three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction Download PDF

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Publication number
CN113974884A
CN113974884A CN202111148526.0A CN202111148526A CN113974884A CN 113974884 A CN113974884 A CN 113974884A CN 202111148526 A CN202111148526 A CN 202111148526A CN 113974884 A CN113974884 A CN 113974884A
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China
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sagittal
recording
vertical
sliding
positioning
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汤欢
严斌
史学明
谷妍
刘敏
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Affiliated Stomatological Hospital of Nanjing Medical University
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Affiliated Stomatological Hospital of Nanjing Medical University
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A61C19/05—Measuring instruments specially adapted for dentistry for determining occlusion
    • 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

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The invention provides a three-dimensional upper and lower jaw position recording device for occlusion reconstruction, which comprises an occlusion plate, an incisor positioning piece and a three-dimensional adjustment recording component, wherein the incisor positioning piece comprises an upper positioning block and a lower positioning block which are arranged from top to bottom, the upper positioning block is provided with an upper positioning groove which is used for positioning upper incisors and has an upward opening, the lower positioning block is provided with a lower positioning groove which is used for positioning lower incisors and has a downward opening, the occlusion plate is connected with the three-dimensional adjustment recording component through the lower positioning block, the three-dimensional adjustment recording component comprises a sagittal recording piece which is used for adjusting and recording the sagittal position of an upper and lower jaw, a vertical recording piece which is used for adjusting and recording the vertical position of the upper and lower jaw and a horizontal recording piece which is used for adjusting and recording the horizontal position of the upper and lower jaw; the device for recording the positions of the upper jaw and the lower jaw in the three-dimensional direction for occlusion reconstruction can realize quick and accurate adjustment, determination and recording of the positions of the upper jaw and the lower jaw, and is convenient for the oral cavity appliance to manufacture and accurately reconstruct the occlusion.

Description

Three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction
Technical Field
The invention relates to a three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction, and belongs to the technical field of oral instruments.
Background
Obstructive Sleep Apnea Syndrome (OSAS) is a common sleep disorder. The oral appliance can change the resistance of the oropharynx to a certain extent through the front lower jaw, and can treat mild and moderate OSAS patients and patients who cannot tolerate positive airway pressure (CPAP) severe OSAS. Currently, the most common oral appliances in clinical practice are functional appliances such as mandibular advancement appliance, and the like, and all the oral appliances need to determine an occlusion reconstruction target in the oral cavity of a patient, perform jaw reconstruction, design a new position of the mandible in three dimensions from front to back, vertically and horizontally, extend or retract the mandible, open the occlusion beyond a jaw stopping gap, trigger neuromuscular reflection, reposition the mandible and establish a new coordinated maxillofacial relationship.
At present, occlusion reconstruction is needed in the manufacture of the functional appliance, and the position of the mandible at a target position needs to be obtained before the appliance is manufactured. The new mandibular position is clinically determined by wax biting. The current clinical adopted mode is as follows: the patient is guided by the doctor to move the lower jaw to the target position, then the patient is ordered to practice, and finally the occlusion wax is placed to obtain the occlusion. This method relies partly on the skill of the physician and partly on the coordination of the patient, and even after many exercises, often the patient will not be able to bite correctly at the target site when the bite is finally taken, and it is necessary to repeat many times to finally obtain the correct bite record.
Chinese patent CN201821727003.5 discloses a device for determining the position relationship between the upper and lower jaws of the oral cavity, which improves the comfort of the patient by placing the tracing screws on the posterior dental areas on both sides of the lower jaw (or the upper jaw) without occupying the space of the tongue. However, the patient needs to be actively matched for multiple times, the time consumption is long, the upper jaw and the lower jaw positions are not convenient to adjust by medical staff, and the 3D printing cost is high.
The above-mentioned problem is a problem that should be considered and solved in the recording of the maxillomandibular position in the three-dimensional direction of occlusion reconstruction.
Disclosure of Invention
The invention aims to provide a three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction, which solves the problems that medical staff cannot adjust maxilla and mandible conveniently in occlusion reconstruction in the prior art, and the device is long in time consumption and difficult in ensuring accuracy due to the fact that the device mainly depends on the cooperation of patients.
The technical solution of the invention is as follows:
the utility model provides a position recorder of jaw from top to bottom for occlusion is rebuild, including the occlusal plate, still include incisor positioning element and three-dimensional adjustment record subassembly, the occlusal plate passes through incisor positioning element and connects three-dimensional adjustment record subassembly, incisor positioning element is including last locating piece and the lower locating piece that from top to bottom sets up, it is equipped with the upper positioning ditch that is used for fixing a position upper incisor and opening up to go up the locating piece, the lower locating piece is equipped with the lower positioning ditch that is used for fixing a position lower incisor and opening down, three-dimensional adjustment record subassembly is including the sagittal record spare that is used for adjusting and recording upper and lower jaw sagittal position, be used for adjusting and recording the vertical record spare of upper and lower jaw vertical position and be used for adjusting and recording the horizontal record spare of upper and lower jaw horizontal position.
Furthermore, the sagittal recording part comprises a sagittal slide rail, a sagittal slide seat and a sagittal handle, the end part of the sagittal slide rail is connected with the upper positioning groove, the sagittal slide seat is provided with a sagittal slide block, the sagittal slide rail is provided with a sagittal slide groove for the sagittal slide block to slide, the sagittal slide rail is connected with the upper positioning seat, the sagittal slide block is connected with the sagittal handle, and the sagittal slide seat is connected with the lower positioning block through the vertical recording part.
Further, the vertical recording part comprises a vertical sliding block, a vertical sliding seat and a vertical handle, the vertical sliding seat is connected with the end part of the sagittal sliding seat, the vertical sliding seat is provided with a vertical sliding groove used for sliding towards the vertical sliding block, the vertical sliding block is connected with the side part of the lower positioning block, and the side part of the vertical sliding block is connected with the vertical handle.
Further, the vertical sliding block is in an inverted U shape.
Furthermore, a gap for moving the sliding block vertically is arranged between the vertical sliding seat and the sagittal sliding rail.
Furthermore, the horizontal recording part comprises a connecting plate, a horizontal sliding seat and a horizontal handle, the horizontal sliding seat is connected with the lower positioning block through the connecting plate, a horizontal sliding block is horizontally arranged on the horizontal sliding seat, a horizontal sliding groove used for horizontally sliding towards the sliding block is vertically arranged at the bottom of the horizontal sliding seat, and the horizontal sliding seat is connected with the horizontal handle.
Furthermore, the vertical sliding groove is respectively and vertically arranged with the horizontal sliding groove and the sagittal sliding groove, and the sagittal sliding block, the vertical sliding block and the horizontal sliding block are respectively provided with scales.
Furthermore, V-shaped grooves for embedding the upper incisors or the lower incisors are respectively arranged in the upper positioning groove and the lower positioning groove.
Furthermore, the occluding plate is a saddle-shaped occluding plate, and a plurality of through holes are formed in the occluding plate.
Further, the three-dimensional direction maxillomandibular position recording apparatus for occlusion reconstruction is used by first ordering the patient to occlude the upper incisor and the lower incisor in the upper and lower positioning grooves, respectively, then manually adjusting the mandible position in the three-dimensional direction by means of the sagittal handle, the vertical handle and the horizontal handle, and after observing that the patient is not uncomfortable, injecting a silastic offset film material into the occlusal plate of the intra-oral part at the mandible position to obtain the occlusal position there.
The invention has the beneficial effects that: according to the recording device for the upper and lower jaw positions in the three-dimensional direction for occlusion reconstruction, the incisor edges of the upper and lower jaws are placed in the upper positioning groove and the lower positioning groove respectively by arranging the upper positioning block and the lower positioning block, so that the upper incisor and the lower incisor are positioned. By arranging the three-dimensional adjusting and recording component, the sagittal position, the vertical position and the horizontal position of the upper jaw and the lower jaw are respectively adjusted and recorded. Through setting up the bite-block, can use silicon rubber interlock material to get the exact interlock position, realize the record. The device for recording the positions of the upper jaw and the lower jaw in the three-dimensional direction for occlusion reconstruction can realize quick and accurate adjustment, determination and recording of the positions of the upper jaw and the lower jaw, and is convenient for the oral cavity appliance to manufacture and accurately reconstruct the occlusion.
Drawings
FIG. 1 is a schematic structural diagram of a three-dimensional maxillomandibular position recording apparatus for occlusion reconstruction according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of the bite plate, incisor locator and three-dimensional adjustment registration assembly of the present embodiment;
FIG. 3 is a schematic view of the construction of an incisor locator and a three-dimensional adjustment registration assembly according to an embodiment;
FIG. 4 is a schematic structural view of a sagittal recording element according to an embodiment;
FIG. 5 is a schematic structural view of a horizontal recording member and a vertical slider in the embodiment;
wherein: 1-occlusal splint, 2-incisor positioning piece, 3-sagittal recording piece, 4-vertical recording piece, 5-horizontal recording piece, 6-scale and 7-through hole;
21-upper positioning block, 22-lower positioning block, 23-upper positioning groove, 24-lower positioning groove and 25-V-shaped groove;
31-sagittal slide rail, 32-sagittal slide rail, 33-sagittal handle, 34-sagittal slide block;
41-a vertical sliding block, 42-a vertical sliding seat, 43-a vertical handle and 44-a vertical sliding groove;
51-connecting plate, 52-horizontal sliding seat, 53-horizontal handle and 54-horizontal sliding block.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
A recording device for recording the positions of upper and lower jaws in three-dimensional directions for occlusion reconstruction is disclosed, as shown in fig. 1 and 2, and comprises an occluding plate 1, an incisor positioning piece 2 and a three-dimensional adjustment recording component, wherein the occluding plate 1 is connected with the three-dimensional adjustment recording component through the incisor positioning piece 2, the incisor positioning piece 2 comprises an upper positioning block 21 and a lower positioning block 22 which are arranged from top to bottom, the upper positioning block 21 is provided with an upper positioning groove 23 which is used for positioning upper incisors and has an upward opening, the lower positioning block 22 is provided with a lower positioning groove 24 which is used for positioning lower incisors and has a downward opening, and the three-dimensional adjustment recording component comprises a sagittal recording piece 3 which is used for adjusting and recording the sagittal positions of the upper and lower jaws, a vertical recording piece 4 which is used for adjusting and recording the vertical positions of the upper and lower jaws, and a horizontal recording piece 5 which is used for adjusting and recording the horizontal positions of the upper and lower jaws.
According to the recording device for the upper and lower jaw positions in the three-dimensional direction for occlusion reconstruction, the incisor edges of the upper and lower jaw incisors are placed in the upper positioning groove 23 and the lower positioning groove 24 respectively through the upper positioning block 21 and the lower positioning block 22, so that the upper incisors and the lower incisors are positioned. By arranging the three-dimensional adjusting and recording component, the sagittal position, the vertical position and the horizontal position of the upper jaw and the lower jaw are respectively adjusted and recorded. By arranging the bite plate 1, the correct bite position can be obtained by using a silicon rubber bite material, and recording is realized. The device for recording the positions of the upper jaw and the lower jaw in the three-dimensional direction for occlusion reconstruction can realize quick and accurate adjustment, determination and recording of the positions of the upper jaw and the lower jaw, and is convenient for the oral cavity appliance to manufacture and accurately reconstruct the occlusion.
As shown in fig. 3 and 4, the sagittal recording member 3 comprises a sagittal slide rail 31, a sagittal slide 32 and a sagittal handle 33, the end of the sagittal slide rail 31 is connected with the upper positioning groove 23, the sagittal slide 32 is provided with a sagittal slide block 34, the sagittal slide rail 31 is provided with a sagittal slide groove for the sagittal slide block 34 to slide, the sagittal slide rail 31 is connected with the upper positioning seat, the sagittal slide block 34 is connected with the sagittal handle 33, and the sagittal slide 32 is connected with the lower positioning block 22 through the vertical recording member 4.
Through setting up sagittal recording piece 3, realize the sagittal adjustment of lower jaw position, specifically, drive sagittal slide 32 through sagittal handle 33, and then drive sagittal slide 34 in the sagittal sliding groove of sagittal slide 31 to the front and back movement in the spout, sagittal slide 32 is through connecting lower locating piece 22 to the recording piece 4 perpendicularly, and sagittal slide 32, sagittal slide 34, perpendicular recording piece 4, lower locating piece 22 are driven to the sagittal handle 33 simultaneously the sagittal to the sagittal removal, realize the sagittal adjustment of lower jaw position, upper jaw, locating piece 21 and sagittal slide 31 position are unchangeable, thereby realize the sagittal adjustment of lower jaw position.
As shown in FIG. 3, the vertical recording element 4 comprises a vertical slider 41, a vertical slider 42 and a vertical handle 43, the vertical slider 42 is connected to the end of the sagittal slider 32, the vertical slider 42 is provided with a vertical sliding slot 44 for sliding the vertical slider 41, the vertical slider 41 is connected to the side of the lower positioning block 22, and the vertical handle 43 is connected to the side of the vertical slider 41.
The vertical adjustment of the position of the upper jaw and the lower jaw is realized by arranging the vertical recording part 4, specifically, the vertical handle 43 drives the vertical sliding block 41, the vertical sliding block 41 can move up and down in the vertical sliding groove 44 of the vertical sliding seat 42, the vertical sliding block 41 drives the lower positioning block 22 to move vertically, the vertical adjustment of the position of the lower jaw is realized, the position of the upper jaw is unchanged, and the vertical adjustment of the position of the upper jaw and the lower jaw is realized. The width of the vertical sliding groove 44 is larger than that of the vertical sliding block 41.
In the vertical recording element 4, the vertical slider 41 is in an inverted U shape, so that the vertical slider 41 is inserted into the vertical sliding groove 44 while being connected to the lower positioning block 22. A gap is arranged between the vertical sliding seat 42 and the sagittal sliding rail 31 for moving the vertical sliding block 41.
As shown in fig. 3 and 5, the horizontal recording member 5 includes a connecting plate 51, a horizontal sliding seat 52 and a horizontal handle 53, the horizontal sliding seat 52 is connected to the lower positioning block 22 through the connecting plate 51, the horizontal sliding seat 52 is provided with a horizontal sliding block 54, the bottom of the vertical sliding seat 42 is provided with a horizontal sliding slot for sliding the horizontal sliding block 54, and the horizontal sliding seat 52 is connected to the horizontal handle 53.
Through setting up the level to record 5, realize the level of upper and lower jaw position to the adjustment, specifically do, drive the level to slide 52 to handle 53 through the level, and then the level drives the level to slide 52 and slides to slider 54 in the level to the spout, and the level drives down locating piece 22 to slide 52 through link plate 51 simultaneously, realizes the level to the adjustment of lower jaw position, and the upper jaw position is unchangeable to the level of realization upper and lower jaw position is to the adjustment. The link plate 51 is preferably an L-shaped link plate 51.
As shown in fig. 3, the vertical sliding groove 44 is respectively perpendicular to the horizontal sliding groove and the sagittal sliding groove, so as to respectively realize the adjustment of the lower positioning block 22 along the horizontal sliding groove, the sagittal sliding groove, and the vertical sliding groove 44, i.e. to respectively realize the three-dimensional adjustment of the xyz axis. The sagittal slide block 34, the vertical slide block 41 and the horizontal slide block 54 are respectively provided with scales 6, and the measurement and the recording of the adjustment positions in the sagittal direction, the vertical direction and the horizontal direction are realized by arranging the scales 6.
As shown in fig. 3, V-shaped grooves 25 for inserting the upper incisor or the lower incisor are respectively provided in the upper positioning groove 23 and the lower positioning groove 24, and the V-shaped grooves 25 can respectively ensure the accurate positioning of the upper incisor in the upper positioning groove 23 and the accurate positioning of the lower incisor in the lower positioning groove 24. The V-shaped groove 25 is preferably a groove having a length of 2cm and a width of 2mm and a V-shaped cross section, and can be used for positioning the upper and lower middle incisors respectively.
The procedure of using the three-dimensional direction maxillomandibular position recording device for occlusion reconstruction is to first order the patient to occlude the upper incisor and the lower incisor in the V-shaped groove 25 of the upper positioning groove 23 and the lower positioning groove 24, respectively, and then manually adjust the mandible position in the three-dimensional direction by the doctor through the sagittal handle 33, the vertical handle 43, and the horizontal handle 53, and after observing that the patient is not uncomfortable, at this mandible position, a silastic film material is injected onto the occlusal plate 1 in the oral cavity portion, and the occlusion position is obtained there. The clinical visit time can be greatly reduced, and the occlusion of the target position can be rapidly and accurately recorded.
According to the three-dimensional direction maxillomandibular position recording device for occlusion reconstruction, each slide block outside the mouth comprises a sagittal slide block 34, a vertical slide block 41 and a horizontal slide block 54, and a scale is marked, so that the moving distance of the mandible of a patient in the three-dimensional direction can be scientifically recorded. The most comfortable upper jaw moving distance of the patient can be recorded, and whether different effects of different moving distances are different or not can be compared, so that the purpose of accurate recording is achieved.
This kind of a jaw position recorder about three-dimensional direction for interlock is rebuild, including oral cavity inside part and oral cavity outside, oral cavity inside part is including occlusal plate 1, and occlusal plate 1 adopts shape of a saddle occlusal plate 1, is equipped with a plurality of preferred diameter 5mm round holes, interval 1 mm's through-hole 7 on the occlusal plate 1 for the interlock material overflows. The wax pattern is a saddle-shaped wax pattern covering the posterior anterior molar, molar area and palatal mucosa, and the occlusion reconstruction wax bank can be occluded without anterior teeth. The extraoral portion includes an incisor locator 2 and a three-dimensional adjustment registration assembly. The incisor positioning piece 2 is used for positioning upper incisors and lower incisors, and both the upper positioning grooves 23 and the lower positioning grooves 24 adopt V-shaped or U-shaped positioning grooves. The three-dimensional adjustment recording component is used for determining the upper and lower jaw positions in the sagittal direction, the vertical direction and the horizontal direction. The recording device for the upper jaw position and the lower jaw position in the three-dimensional direction for occlusion reconstruction can be used for manufacturing oral appliances, and the lower jaw position in the three-dimensional direction can be rapidly and accurately determined during occlusion reconstruction.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. The utility model provides a position recorder that is used for occlusion to rebuild three-dimensional direction maxilla and mandible, includes the bite plate, its characterized in that: the upper positioning block is provided with an upper positioning groove used for positioning the upper incisor and provided with an upward opening, the lower positioning block is provided with a lower positioning groove used for positioning the lower incisor and provided with a downward opening, the occlusal plate is connected with the three-dimensional adjustment recording component through the lower positioning block, and the three-dimensional adjustment recording component comprises a sagittal recording component used for adjusting and recording the sagittal position of the upper and lower jaws, a vertical recording component used for adjusting and recording the vertical position of the upper and lower jaws and a horizontal recording component used for adjusting and recording the horizontal position of the upper and lower jaws.
2. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 1, wherein: the sagittal recording part comprises a sagittal sliding rail, a sagittal sliding seat and a sagittal handle, the end part of the sagittal sliding rail is connected with the upper positioning groove, the sagittal sliding seat is provided with a sagittal sliding block, the sagittal sliding rail is provided with a sagittal sliding groove used for the sagittal sliding block to slide, the sagittal sliding rail is connected with the upper positioning seat, the sagittal sliding block is connected with the sagittal handle, and the sagittal sliding seat is connected with the lower positioning block through the vertical recording part.
3. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 2, wherein: the vertical recording part comprises a vertical sliding block, a vertical sliding seat and a vertical handle, the vertical sliding seat is connected with the end part of the sagittal sliding seat, the vertical sliding seat is provided with a vertical sliding groove for the vertical sliding of the vertical sliding block, the vertical sliding block is connected with the side part of the lower positioning block, and the side part of the vertical sliding block is connected with the vertical handle.
4. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 3, wherein: the vertical sliding block is in an inverted U shape.
5. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 3, wherein: a gap for moving the sliding block vertically is arranged between the vertical sliding seat and the sagittal sliding rail.
6. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 3, wherein: the horizontal direction recording part comprises a connecting plate, a horizontal direction sliding seat and a horizontal direction handle, the horizontal direction sliding seat is connected with the lower positioning block through the connecting plate, the horizontal direction sliding seat is provided with a horizontal direction sliding block, the vertical direction sliding seat is provided with a horizontal direction sliding groove used for horizontally sliding towards the sliding block, and the horizontal direction sliding seat is connected with the horizontal direction handle.
7. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 6, wherein: the vertical sliding groove is respectively and vertically arranged with the horizontal sliding groove and the sagittal sliding groove, and the sagittal sliding block, the vertical sliding block and the horizontal sliding block are respectively provided with scales.
8. The three-dimensional direction maxillomandibular position recording device for bite reconstruction according to any one of claims 1 to 7, wherein: v-shaped grooves for embedding the upper incisors or the lower incisors are respectively arranged in the upper positioning groove and the lower positioning groove.
9. The three-dimensional direction maxillomandibular position recording device for bite reconstruction according to any one of claims 1 to 7, wherein: the occluding plate adopts a saddle-shaped occluding plate, and is provided with a plurality of through holes.
10. The three-dimensional direction maxillomandibular position recording apparatus for bite reconstruction according to claim 8, wherein: the three-dimensional direction upper and lower jaw position recording device for occlusion reconstruction is used for firstly ordering the upper incisor and the lower incisor of a patient to be occluded in an upper positioning groove and a lower positioning groove respectively, then manually adjusting the position of a lower jaw in the three-dimensional direction through a sagittal handle, a vertical handle and a horizontal handle, and after observing that the patient does not feel uncomfortable, injecting a silicon rubber offset printing film material into an occlusal plate of an inner part of an oral cavity at the position of the lower jaw to obtain the occlusion position at the position.
CN202111148526.0A 2021-09-29 2021-09-29 Three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction Pending CN113974884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111148526.0A CN113974884A (en) 2021-09-29 2021-09-29 Three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111148526.0A CN113974884A (en) 2021-09-29 2021-09-29 Three-dimensional direction maxilla and mandible position recording device for occlusion reconstruction

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Publication Number Publication Date
CN113974884A true CN113974884A (en) 2022-01-28

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Country Status (1)

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