CN109938868B - Device and method for recording central relation position of mandibular condyloid process - Google Patents
Device and method for recording central relation position of mandibular condyloid process Download PDFInfo
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- CN109938868B CN109938868B CN201910284745.8A CN201910284745A CN109938868B CN 109938868 B CN109938868 B CN 109938868B CN 201910284745 A CN201910284745 A CN 201910284745A CN 109938868 B CN109938868 B CN 109938868B
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 240000000342 Palaquium gutta Species 0.000 claims abstract description 60
- 229920000588 gutta-percha Polymers 0.000 claims abstract description 60
- 239000000899 Gutta-Percha Substances 0.000 claims abstract description 59
- 210000004373 mandible Anatomy 0.000 claims abstract description 16
- 210000001847 jaw Anatomy 0.000 claims abstract description 12
- 230000014759 maintenance of location Effects 0.000 claims description 17
- 210000004283 incisor Anatomy 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 description 4
- 230000001055 chewing effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 208000002354 Edentulous Jaw Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001352 masseter muscle Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 210000000966 temporal muscle Anatomy 0.000 description 1
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Abstract
The invention relates to a device for recording the central relation position of a jaw bone condyloid process, which solves the problems that the existing method for recording the central relation position of the jaw bone condyloid process is inconvenient and the device is not easy to obtain. Including the loading board, locate the record board on the loading board both sides face respectively and be used for noting the spheroid of jaw movement track on the record board to and locate the loading board both sides respectively with upper and lower two rows of tooth complex gutta-perchas, the gutta-percha of loading board both sides cover spheroid and record board respectively, be equipped with on the loading board with spheroid complex spheroid constant head tank, spheroid protrusion in loading board, the setting of record board is corresponded to the spheroid. The device for recording the central relation position of the condyloid apophysis of the mandible has a simple structure and convenient material acquisition; the method for recording the relation position in the mandibular condyloid process by using the device of the invention is simple, feasible, stable and has wide adaptation.
Description
Technical Field
The invention relates to a medical instrument, in particular to a device for recording the position of the central relation of jaw condyloid apophysis.
Background
The current common methods for obtaining the record of the median relationship position include a two-hand guiding method, a splint method, a spacer method, a gothic arch method and the like. These methods have certain limitations in the convenience, accuracy, stability and indication of the recording. For example, the two-hand guiding method requires a certain special training and is guided by external force; when the splint method is used for recording, the lower jaw cannot move freely; the gauge slice method is not applicable when the occlusion is too deep; traditional gothic arch methods are only used for edentulous jaws and the like. The current methods all require equipment that is not readily available.
Disclosure of Invention
The invention aims to solve the problems that the existing method for recording the relation position of the condyloid process of the mandible is inconvenient and the device is not easy to obtain.
The technical scheme adopted for solving the technical problems provided by the invention is as follows: the device for recording the central relation position of the condyloid apophysis of the mandible comprises a bearing plate, recording plates respectively arranged on two side surfaces of the bearing plate, spheroids used for recording jaw movement tracks on the recording plates, and gutta-percha respectively matched with an upper row of teeth and a lower row of teeth and arranged on two sides of the bearing plate, wherein the gutta-percha on two sides of the bearing plate respectively covers the spheroids and the recording plates, the bearing plate is provided with spheroid positioning grooves matched with the spheroids, the spheroids protrude out of the bearing plate, and the spheroids are arranged corresponding to the recording plates.
A method for recording the relationship position of the condyloid process of the mandible by using the device of the invention is characterized in that: the method comprises the following steps:
a: manufacturing a bearing plate, a spheroid and a recording plate;
b: trial biting of a bearing plate: biting the bearing plate, recording the incisor position on the bearing plate, grinding a spheroid positioning groove at the center of the incisor position, installing a spheroid in the spheroid positioning groove, protruding the spheroid out of the bearing plate, and installing a recording plate on the other side of the bearing plate corresponding to the spheroid;
c: respectively paving gutta-percha on two sides of the bearing plate and respectively covering the spheroid, the incisor position and the recording plate;
d: biting the bearing plate and the gutta-percha on the two sides of the bearing plate to ensure that the gutta-percha on the two sides of the bearing plate is tightly attached to the tooth surface, taking out the bearing plate after the gutta-percha is cured, and taking down the gutta-percha carrying the recording plate and the spheroid;
e: trimming gutta-percha, reserving an anterior tooth area, and cutting off redundant parts on the labial side;
f: placing gutta-percha on corresponding teeth in the mouth respectively, and enabling the lower jaw to freely slide horizontally, naturally extend forwards, retreat and slide left and right by the aid of the spherical body supporting the recording plate;
g: taking out the gutta-percha, drying the recording plate, coating mark ink on the recording plate, respectively placing the gutta-percha on corresponding teeth in the mouth, enabling the lower jaw to freely slide horizontally, naturally extend forwards, retreat and slide left and right, and enabling the spheroid to scratch the recording plate;
h: taking off the gutta-percha, and recording the intersection point of the scratches as the mandibular condyloid process normal relation position according to the scratches of the recording plate;
i: manufacturing a retention sheet, punching a hole at the bottom of the retention sheet, fixing the retention sheet on the recording plate, and aligning the center of the hole with the intersection point of the scratches;
j: placing the gutta-percha on corresponding teeth in the mouth respectively, closing the lower jaw to move, and enabling the spheroid to stably return to the hole on the retention piece without sliding; injecting gutta-percha into the gap between the posterior teeth and the anterior teeth for fixation;
k: and taking out the whole gum record, namely an occlusion relation record of the relationship position in the condyloid process of the mandible.
The technical scheme for further limiting the invention comprises the following steps:
the gutta-percha comprises upper gutta-percha matched with upper row of teeth and lower gutta-percha matched with lower row of teeth, the recording plate is arranged above the lower teeth, and the spheroid is arranged below the upper gutta-percha.
The gutta-percha comprises upper gutta-percha matched with upper row of teeth and lower gutta-percha matched with lower row of teeth, the recording plate is arranged below the upper teeth, and the spheroid is arranged above the lower gutta-percha.
The gutta-percha is silicon rubber.
The ball-shaped body is a steel ball, the recording plate is a disposable mouth mirror lens, and the recording plate is coated with marking ink.
The bearing plate is a glass plate.
The first retention sheet in step I is a self-solidifying sheet.
And B, wax is dripped between the spherical body and the spherical body positioning groove for fixing, and wax is dripped between the recording plate and the bearing plate for fixing.
And (I) the retention piece and the recording plate are retained by dripping wax.
Through the technical scheme, the invention has the beneficial effects that: the device for recording the central relation position of the condyloid apophysis of the mandible comprises a bearing plate, recording plates respectively arranged on two side surfaces of the bearing plate, a spheroid for recording the moving track of the mandible on the recording plates, and gutta-percha respectively matched with an upper row of teeth and a lower row of teeth, and has the advantages of simple structure and convenient material taking; the method for recording the relation position in the mandibular condyloid process by using the device of the invention is simple, feasible, stable and has wide adaptation.
Drawings
FIG. 1 is a schematic view of the position structure of the bearing plate, the recording plate and the spherical body for recording the relation position of the condyloid process of the mandible.
FIG. 2 is a perspective view of an apparatus for recording the medial relationship of the condyloid process of the mandible of the present invention.
FIG. 3 is a perspective view of the apparatus for recording the medial relationship of the condyloid process of the mandible with the bearing plate removed.
Detailed Description
The structure of the present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 3, a device for recording the relation position of the condyloid apophysis of the mandible comprises a bearing plate 1, recording plates 2 respectively arranged on two side surfaces of the bearing plate, a spheroid 3 used for recording the moving track of the mandible on the recording plates, and gutta-percha respectively matched with upper and lower rows of teeth arranged on two sides of the bearing plate, wherein the gutta-percha on two sides of the bearing plate respectively covers the spheroid and the recording plates, a spheroid positioning groove matched with the spheroid is arranged on the bearing plate, the spheroid protrudes out of the bearing plate, and the spheroid is arranged corresponding to the recording plates. In this embodiment, the gutta-percha includes upper gutta-percha 4 matched with the upper row of teeth and lower gutta-percha 5 matched with the lower row of teeth, the recording board is arranged above the lower teeth, and the spheroid is arranged below the upper gutta-percha. In specific implementation, the recording plate can also be arranged below the upper teeth, and the spheroid is arranged above the lower gutta-percha. In this embodiment, the gutta-percha is silicone rubber. The spheroids are steel balls, the recording plate is a disposable mouth mirror lens, and the recording plate is coated with marking ink. The bearing plate is a glass plate.
A method for recording the relationship position of the condyloid process of the mandible by using the device of the invention is characterized in that: the method comprises the following steps:
a: manufacturing a bearing plate, a spheroid and a recording plate;
b: trial biting of a bearing plate: biting the bearing plate, recording the incisor position on the bearing plate, grinding a spheroid positioning groove at the center of the incisor position, installing a spheroid in the spheroid positioning groove, protruding the spheroid out of the bearing plate, and installing a recording plate on the other side of the bearing plate corresponding to the spheroid; in this embodiment, the spheroid positioning slot is in the shape of an inverted cone. In this embodiment, the glass plate is bitten into the first molar region in the middle, and the lower jaw is retracted to engage and apply force. Contraction of temporal and chewing muscles. Marking the positions of upper and lower incisors on the glass plate; the central positions of the upper incisor and the lower incisor are found out on the glass plate, a round recess with the diameter larger than 5mm and the depth about 3mm is ground, and a small steel ball with the diameter of 5mm can be loosely placed for wax dropping and fixing. The center of the lens is opposite to the center of the recess, and the lens is stuck below the glass plate and fixed by dropping wax;
c: respectively paving gutta-percha on two sides of the bearing plate and respectively covering the spheroid, the incisor position and the recording plate; and compacting the gutta-percha.
D: biting the bearing plate and the gutta-percha on the two sides of the bearing plate, palpating the contraction of temporal muscle and masseter muscle, closing the oral lip for shaping, enabling the gutta-percha on the two sides of the bearing plate to be tightly attached to the tooth surface, taking out the bearing plate after the gutta-percha is cured, and taking down the gutta-percha carrying the recording plate and the spheroid;
e: trimming gutta-percha, reserving an anterior tooth area, keeping the lens and the small steel ball stable, and cutting off redundant parts on the labial side;
f: placing gutta-percha on corresponding teeth in the mouth respectively, supporting the lenses by the small steel balls, enabling the lower jaw to freely and horizontally slide, relaxing muscles of a tested person, and exercising that the lower jaw naturally extends forwards, retreats and slides left and right laterally under the support of the small steel balls;
g: taking out the gutta-percha, drying the recording plate, coating mark ink on the recording plate, respectively placing the gutta-percha on corresponding teeth in the mouth, enabling the lower jaw to freely slide horizontally, naturally extend forwards, retreat and slide left and right, and enabling the spheroid to scratch the recording plate;
h: taking off the gutta-percha, and recording the intersection point of the scratches as the mandibular condyloid process normal relation position according to the scratches of the recording plate;
i: manufacturing a retention piece, punching a hole at the bottom of the retention piece, dropping wax on the retention piece and fixing the retention piece on a recording plate, wherein the center of the hole is aligned with the intersection point of the scratches;
j: placing the gutta-percha on corresponding teeth in the mouth respectively, closing the lower jaw to move, and enabling the spheroid to stably return to the hole on the retention piece without sliding; performing forced occlusion, palpating the temporalis muscle and the chewing muscle to obviously contract, and injecting gutta-percha into the gap between the posterior teeth and the anterior teeth for fixation;
k: and taking out the whole gum record, namely an occlusion relation record of the relationship position in the condyloid process of the mandible.
The device for recording the central relation position of the condyloid apophysis of the mandible has a simple structure and convenient material acquisition; the method for recording the relation position in the mandibular condyloid process by using the device of the invention is simple, feasible, stable and has wide adaptation.
While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be construed as limiting the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the present invention as described in the appended claims.
Claims (7)
1. A method of recording the medial relation of the condyloid processes of the jaw, comprising: the method comprises the following steps:
a: manufacturing a bearing plate, a spheroid and a recording plate;
b: trial biting of a bearing plate: biting the bearing plate, recording the incisor position on the bearing plate, grinding a spheroid positioning groove at the center of the incisor position, installing a spheroid in the spheroid positioning groove, protruding the spheroid out of the bearing plate, and installing a recording plate on the other side of the bearing plate corresponding to the spheroid;
c: respectively paving gutta-percha on two sides of the bearing plate and respectively covering the spheroid, the incisor position and the recording plate;
d: biting the bearing plate and the gutta-percha on the two sides of the bearing plate to ensure that the gutta-percha on the two sides of the bearing plate is tightly attached to the tooth surface, taking out the bearing plate after the gutta-percha is cured, and taking down the gutta-percha carrying the recording plate and the spheroid;
e: trimming gutta-percha, reserving an anterior tooth area, and cutting off redundant parts on the labial side;
f: placing gutta-percha on corresponding teeth in the mouth respectively, and enabling the lower jaw to freely slide horizontally, naturally extend forwards, retreat and slide left and right by the aid of the spherical body supporting the recording plate;
g: taking out the gutta-percha, drying the recording plate, coating mark ink on the recording plate, respectively placing the gutta-percha on corresponding teeth in the mouth, enabling the lower jaw to freely slide horizontally, naturally extend forwards, retreat and slide left and right, and enabling the spheroid to scratch the recording plate;
h: taking off the gutta-percha, and recording the intersection point of the scratches as the mandibular condyloid process normal relation position according to the scratches of the recording plate;
i: manufacturing a retention sheet, punching a hole at the bottom of the retention sheet, fixing the retention sheet on the recording plate, and aligning the center of the hole with the intersection point of the scratches;
j: placing the gutta-percha on corresponding teeth in the mouth respectively, closing the lower jaw to move, and enabling the spheroid to stably return to the hole on the retention piece without sliding; injecting gutta-percha into the gap between the posterior teeth and the anterior teeth for fixation;
k: and taking out the whole gum record, namely an occlusion relation record of the relationship position in the condyloid process of the mandible.
2. The method of recording the medial relationship of the condyloid processes of the jaw of claim 1, wherein: the retention sheet in the step I is a self-solidifying plastic sheet.
3. The method of recording the medial relationship of the condyloid processes of the jaw of claim 1, wherein: and B, wax is dripped between the spherical body and the spherical body positioning groove for fixing, and wax is dripped between the recording plate and the bearing plate for fixing.
4. The method of recording the medial relationship of the condyloid processes of the jaw of claim 1, wherein: and (I) the retention piece and the recording plate are retained by dripping wax.
5. The method of recording the medial relationship of the condyloid processes of the jaw of claim 1, wherein: the gutta-percha is silicon rubber.
6. The method of recording the medial relationship of the condyloid processes of the jaw of claim 1, wherein: the method is characterized in that: the spheroid is the steel ball, and the recording plate is disposable mouth mirror lens.
7. The method of recording the medial relationship of the condyloid processes of the jaw of claim 1, wherein: the method is characterized in that: the bearing plate is a glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910284745.8A CN109938868B (en) | 2019-04-10 | 2019-04-10 | Device and method for recording central relation position of mandibular condyloid process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910284745.8A CN109938868B (en) | 2019-04-10 | 2019-04-10 | Device and method for recording central relation position of mandibular condyloid process |
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| CN109938868A CN109938868A (en) | 2019-06-28 |
| CN109938868B true CN109938868B (en) | 2021-03-23 |
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| CN201910284745.8A Active CN109938868B (en) | 2019-04-10 | 2019-04-10 | Device and method for recording central relation position of mandibular condyloid process |
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| CN109938868A (en) | 2019-06-28 |
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