JP2003220079A - Apparatus and method for analyzing articulation and reference marker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems of a conventional face-bow transfer which cannot be reappeared on an articulator for esthetics and when a prosthesis or a denture is manufactured, the appearance is damaged by such as deviation of a median line or an inclination of an articulation plane but also it becomes a cause for bringing about various troubles. <P>SOLUTION: The apparatus for analyzing the articulation comprises a vertically movable dentition model regulating plate longitudinally and laterally rotatably supported and mounted at the articulator for reproducing a lower jaw movement. The apparatus also comprises virtual articulation plane recorders at both sides of a body used for the face-bow transfer for reappearing the lower jaw movement. The method for analyzing the articulation comprises the steps of recording a positional relationship between a temporomandibular joint and the upper jaw and a virtual articulation plane in the face-bow by the face-bow transfer, then setting the face-bow in the articulator in which the apparatus for analyzing the articulation having the dentition model regulating plate for longitudinally, laterally and vertically regulating is mounted, and reproducing the record of the virtual articulation plane on the dentition model regulating plate of the apparatus. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a face bow
The present invention relates to an apparatus and a method for faithfully reproducing the positional relationship between the oral cavity and the face when mounting a dental model on an articulator by transfer.

[0002]

2. Description of the Related Art An articulator is used when indirectly manufacturing a prosthesis regardless of whether it has a jaw with teeth or an edentulous jaw, or when making a diagnosis and treatment plan in the oral cavity. The articulator is a device for mechanically reproducing the movement of the lower half of the human skull, and can fix the upper and lower jaw dentition model in the same positional relationship as the living body to reproduce the lower jaw movement.

For this reason, it is necessary to mount the maxillary dentition model on the articulator in the same positional relationship as in the oral cavity, and face-bow transfer is an essential work. The face bow transfer includes a hinge bow and a simple bow, and the simple bow is widely used in daily clinical practice. Simple Bow measures the positional relationship of the maxillary ridge using the left and right temporomandibular joints of the living body and the dentition of the maxilla or fistula ridge, and by setting this on the articulator, It is an instrument that mounts the upper dentition model in the same positional relationship as in the oral cavity.

Face bow using simple bow etc.
By the transfer, the three-dimensional positional relationship of the upper jaw from the front reference point and the rear reference point set on the face can be reproduced on the articulator, and the surgical procedure becomes easy.

[0005]

In the construction of upper and lower dentitions, occlusion is the most important, but it is known that aesthetics also plays an important role. However, in the face bow transfer using the conventional simple bow etc., the upper jaw dentition model is simply reproduced on the articulator so that it can be mounted on the articulator in the same positional relationship as in the oral cavity. The reality is that little information about sex can be obtained. In other words, there is a problem that the conventional face-bow transfer cannot reflect this, regardless of the situation that most people do not have the pupil line and the anterior teeth parallel. Therefore, the prosthesis and the denture manufactured on the articulator not only detract from the median or tilt the occlusal plane to impair aesthetics, but also cause various troubles.

Further, in the conventional face bow transfer using a simple bow or the like, it is possible to match the median point in reproducing the three-dimensional positional relationship of the upper jaw on the articulator by the front reference point and the rear reference point described above. In addition to the above-mentioned pupil line, a virtual occlusal plane cannot be recorded and displayed, and there is a problem that information necessary for occlusal of an edentulous jaw cannot be obtained sufficiently. The virtual occlusal plane is a so-called Camper plane, which is a line that connects the lower edge of the nasal wing and the upper edge of the tragus, that is, the plane determined by the nasal auditory canal line, and is used as the occlusal plane of the complete denture. .

Various methods have been adopted for setting a front reference point that serves as a reference when the simple bow is attached to the patient's face. For example, from the right central incisor or side incisor to the inner canthus, set the front reference point at the right nasal root 43 mm above.
The ear canal is used as the posterior reference point and the wearing standard for simple bows and the like is used. Conventionally, in order to set the front reference point on the patient's face, for example, a ruler provided with a front reference point indicating portion at a position 43 mm from the incision of the right central incisor has been used. However, in the conventional ruler, the front reference point indicating portion is simply provided at the position of 43 mm, and there is a drawback that the direction toward the inner canthus is not fixed and a large error occurs. Also, when marking the virtual occlusal plane, it was done by applying a straight edge to the lower edge of the nasal wing and the upper edge of the tragus, but there was a problem that an accurate virtual occlusal plane could not be obtained. there were.

[0008]

Therefore, the present inventor has accomplished the present invention as a result of earnest research in view of the above problems, and is characterized by the lower jaw in the invention of a product. It is attached to an articulator that reproduces movement,
An occlusal analysis device comprising a dentition model adjusting plate that is rotatably supported in the front-rear and left-right directions and that is movable up and down.

Alternatively, a face for reproducing the mandibular movement
It was used for bow transfer and equipped with virtual occlusal plane recording tools on both sides of the main body. It is used for face bow transfer to reproduce lower jaw movement, and equipped with an eyepoints checker on the front of the main body. Or face bow that reproduces mandibular movement
A face bow for use in transfer, comprising a midline recording tool that rotatably supports a rod-shaped body.

Alternatively, a ruler for marking a front reference point on a patient's face at the time of face-bow transfer, wherein the ruler body is provided with an extension portion from a front reference point indicating portion for marking the front reference point. Is a reference marker.

Alternatively, the pupil line recorded by an eyepoints checker provided in front of the face bow is reproduced, and the lower jaw movement is reproduced by rotatably supporting the pupil line display unit. An eyepoints parallel checker comprising a support portion that is attached to an incisal pin of an articulator so as to be vertically movable.

In the method invention, the face bow
After recording the positional relationship between the temporomandibular joint and the maxilla and the virtual occlusal plane on the face bow by transfer, anteroposterior, lateral,
The face bow is set in an articulator equipped with an occlusal analysis device equipped with a dentition model adjusting plate that is adjusted up and down, and a record of a virtual occlusal plane of the face bow is recorded, and the dentition model adjustment of the occlusal analysis device is performed. To reproduce on a board. Or face
After recording the pupil line with the eyepoints checker provided in front of the face bow by bow transfer, set the eyepoints checker on the articulator, and record the pupil line on the incisal pin of the articulator Reproduce it in the Aipoints Parallel Checker. Alternatively, after recording the midline with a midline recording device that rotatably supports a rod-shaped body provided for the face bow by face bow transfer, set the midline recording device in an articulator, and The midline record is to be marked on the maxillary dentition model.

The term "dental model adjusting plate" as used herein refers to a device that reproduces a virtual occlusal plane of a patient by attaching it to an articulator. In the occlusal analyzer according to the present invention, the dentition model adjusting plate is rotatably supported in the front-rear direction and the left-right direction so that it can be moved up and down. The occlusal analyzer is usually attached to the lower arch of the articulator and used as a reference when constructing and diagnosing the upper jaw dentition model using the dentition model adjustment plate, but conversely, it is attached to the upper arch of the articulator to lower the jaw. It is also possible to construct a dental model and make a diagnosis.

The dentition model adjusting plate may have a structure in which it is fixed by moving it back and forth and left and right like a pan head used for a tripod of a camera or the like, but it may also have a structure in which the back and forth and left and right movements are independent. Regarding vertical movement, in addition to movably supporting the dentition model adjusting plate in the vertical direction, the occlusal analyzer main body or a part thereof may be moved vertically. Further, it can be supported so as to be slidable left and right and front and back, and in this case, the dentition model adjusting plate itself as well as the occlusal analyzer main body or a part thereof is slid.

The dentition model adjusting plate reproduces the inclination of the virtual occlusal plane of the patient. Therefore, if the dentition model adjusting plate is divided into left and right parts and can be individually rotated back and forth to be adjusted, the left and right virtual parts of the patient can be adjusted. The inclination of the occlusal plane can be reproduced more accurately. Further, it may be configured such that it can rotate about a vertical line, and in this case, there is an advantage that the dentition model adjusting plate can be aligned with the midline of the patient. Furthermore, if it is possible to quantify the front and rear and left and right tilt and rotation position of the dentition model adjustment plate, it can be reproduced again with only the occlusal analyzer or the data of multiple patients with other occlusal analyzers. It becomes possible to do. As a means for digitizing, for example, a scale is provided or a level is installed.
As the dentition model adjustment plate, in addition to forming with a flat plate-shaped body,
It may be shaped according to Wilson's curve.

The articulator to which the occlusal analyzer is attached in the present invention is a so-called anatomical articulator. This includes a fully adjustable articulator, a semi-adjustable articulator, and
The articulator is classified as a non-adjustable articulator, and is classified into an archon type and a condyler type depending on the structure of the joint portion, but in the present invention, any of these types may be used and is not limited.

The "virtual occlusal plane recording tool" is a device for recording the virtual occlusal plane marked on the patient's face. The recording in this case is performed by so-called face bow transfer, in which the front and rear reference points of the patient's face are measured and reproduced on the articulator. Therefore, the face bow according to the present invention has a structure in which virtual occlusal plane recording tools are provided on both sides of the face bow body. The virtual occlusal plane recorded by the virtual occlusal plane recording tool by the face bow transfer is reproduced on the dentition model adjusting plate of the above-mentioned occlusal analysis device.

The body of the face bow is divided into a hinge bow which is actually obtained by measuring the rear reference point and a simple bow which is determined at an average position. In the present invention, it suffices to provide virtual occlusal plane recording tools on both sides of the body of the face bow that have been conventionally used for face bow transfer. Examples of the virtual occlusal plane recording device include a structure in which a transparent plate is provided and a marking on the patient's face is written on the transparent plate, and a recording member that is rotatable and vertically movable is provided and fixed according to the marking.

The "eyepoints checker" is a member that is attached to the front of the face bow body to fix the face bow body to the patient's pupil line while the face bow body is set on the patient's face. Therefore, the eyepoints checker is provided on the face bow body so as to be vertically movable and rotatable left and right. Generally, when the eyepoints checker is moved up and down to adjust to match the pupil line, a shaft is provided on the eyepoints checker and the axis is moved up and down. In such a case, the eyepoints checker is moved. Preferably does not rotate about its axis. For example, it is possible to use an axis other than a circular cross section such as a polygonal cross section, or to provide a flat section or a groove even for a circular cross section.

The "median line recording tool" is a member that is provided on the face / bow main body to move and record so as to include the line segment in the sagittal plane of the patient. In other words, a rod-shaped body is rotatably supported as a line segment and is recorded as a line instead of a point. The position at which the midline recording tool is provided is not particularly limited, but it is preferably rotatably provided at the center of the front part of the bite fork mounted on the face bow body. Further, since most people have their pupil line and median line orthogonal to each other, the vertical axis provided on the eyepoints checker may be used to make this a median line recording tool.

The "Aipoints Parallel Checker" is
By reproducing the patient's pupil line recorded by the eyepoints checker on the articulator, it is reflected in the construction of the dentition model. This eyepoints parallel checker may be provided side by side on the dentition model adjustment plate provided on the occlusal analyzer or may be provided on the incisal pin of the articulator. In the former case, the pupil line display portion is provided on the front part of the dentition model adjustment plate so as to be rotatable left and right, but it may be movable up and down. In the latter case, the pupil line display unit is rotatably provided on the support unit that is attached to the incisal pin of the articulator so as to be vertically movable. In this case, the incisal pin may also have a polygonal cross section or may be provided with a flat surface portion or a groove to prevent the support portion from rotating around the axis.

The "front reference point designating section" is provided on a ruler used when the face bow body is mounted in the face bow transfer, and is a portion pointed to for marking the front reference point of the patient. Say. For example, the front reference point designating portion is provided at a position 43 mm from the portion corresponding to the right central incisor or the side incisor. In the reference marker according to the present invention, the extension portion is further provided from the front reference point indicating portion. This extension portion is for indicating, for example, the inner canthus, and by providing this extension portion, the position 43 mm from the right central incisor or side incisor can be reliably indicated with almost no error. The extension may have a length of about 30 mm or more from the front reference point designating part.
Further, the front reference point instruction unit may be movable because the setting position of the front reference point differs depending on the articulator manufacturer. In this case, it is preferable to provide a scale.

The ruler body may be provided with an ear canal insertion portion. By providing the ear canal insertion portion and inserting the ear canal into the ear canal, the ear canal and the lower edge of the nasal alveolus can be extremely easily pointed, and the virtual occlusal plane can be marked on the patient's face easily and reliably. Since the reference marker of the present invention is preferably sterilized at high temperature after marking on a patient, it is preferable that the ruler body and the external auditory meatus insertion portion are formed of metal or heat-resistant plastic.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the embodiments of the invention shown in the drawings.

FIG. 1 shows an example of an occlusal analyzer 1 according to the present invention, which is provided with a dentition model adjusting plate 11 which is rotatably supported in the front-rear direction, left-right direction and movable in the up-down direction. Is. The dentition model adjusting plate 11 of the occlusal analyzer 1 reproduces the inclination of the virtual occlusal plane of the patient. By attaching the occlusal analyzer 1 to the lower arch of the articulator A as shown in the drawing, the articulator The upper dentition model 12 attached to the upper arch of A is constructed and diagnosed.

FIG. 2 shows an example of an embodiment of the face bow 2 according to the present invention, in which virtual occlusal plane recording tools 22 are provided on both sides of a simple bow body 21. The virtual occlusal plane recording tool 22 has a structure in which a recording member 23 supported so as to be vertically and rotatably fixed and recorded according to a reference line representing a virtual occlusal plane marked on the patient's face. In this example, the transparent plate 2 is attached to the simple bow body 21.
8 is provided, and the recording member 23 is moved along the transparent plate 28. The recorded inclination of the virtual occlusal plane of the patient is reproduced on the dentition model adjusting plate 11 of the occlusal analyzer 1 set in the articulator A.

In the occlusal analysis method according to the present invention, when carrying out the method, as in the case of the conventional general face bow transfer, first, as shown in FIG. Mark point 41. In this case, the reference line 42 representing the inclination of the virtual occlusal plane of the patient is also marked. Then, with the face bow 2 according to the present invention set as shown in FIG. 6B, the virtual occlusal planes marked on both sides of the patient's face by the virtual occlusal plane recording tool 22 with the so-called upper jaw triangle determined Record the reference line 42 of. The transfer pin 24 is removed from the face bow 2 in which each information is recorded, set on the articulator A, and the maxillary dentition model 12 is attached to the articulator A with plaster in accordance with the bite fork 25 [Fig. ].

Next, after the plaster has set, the bite fork 25 is removed, the upper dentition model 12 is removed from the articulator A, and the occlusal analyzer 1 is attached to the lower arch of the articulator A as shown in FIG. Attach to. Then, the face bow 2 is attached to the transfer pin 24 set in the articulator A.
Reattach. In this state, the inclination of the virtual occlusal plane recorded by the virtual occlusal plane recording tool 22 of the face / bow 2 is reproduced by adjusting the dentition model adjusting plate 11 of the occlusal analyzer 1. In this case, the adjustment of the dentition model adjustment plate 11 is difficult to be performed at the position recorded by the recording member 23, and thus the recording member 2
Perform with the bottom of 3 as the goal. Therefore, in this example, the recording member 23 is formed by a plate-shaped body whose upper side and lower side are parallel to each other. That is, it is for facilitating the reproduction of the recording in which the marking of the patient's face is recorded by the recording member 23 by the dentition model adjusting plate 11 in which the occlusal analyzer 1 is set in the articulator A. In this example, the height of the recording plate 23 is 20 mm.
In the case where the virtual occlusal plane recording tool 22 has a structure in which a transparent plate is used to record by recording with a marker or the like, it can be dealt with by drawing a line parallel to the recording line using, for example, a caliper.

After reproducing the inclination of the virtual occlusal plane on the dentition model adjusting plate 11, the upper jaw dentition model 12 is attached to the articulator A again, and the dentition model adjusting plate 11 is lifted up, as shown in FIG. Then, it is provided along with the upper jaw dentition model 12 for diagnosis such as construction of a dentition, production of a prosthesis, and scraping. As a standard of the raised position of the dentition model adjusting plate 11, for example, a position 7 mm below the Hamra notch of the maxillary dentition model 12 is the position where the second molar (the last molar) contacts the dentition model adjusting plate 11. In this example, the dentition model 12 is once removed from the articulator A, the dentition model adjusting plate 11 is adjusted, and then reattached. However, the dentition model 12 is attached to the articulator A, and the occlusal analyzer is used. It is also possible to perform the setting of 1 and the adjustment of the dentition model adjusting plate 11.

FIG. 4A shows another example of the face bow 2 according to the present invention, in which an eyepoints checker 26 is provided on the front surface of the simple bow body 21. The eyepoints checker 26 includes a flat plate 261 and a shaft 26.
The shaft 262 is provided in the transfer pin 24 of the simple bow body 21 so as to be vertically movable and rotatable. The face bow 2 is recorded by fixing the flat plate 261 to the pupil line of the patient when the simple bow body 21 is set on the patient's face as shown in FIG. In this example, a flat portion is provided on the shaft 262 so that the flat plate 261 does not rotate around the shaft 262. Therefore, in order to adjust the flat plate 261 parallel to the patient's face, the flat plate 261 is fixed to the shaft 262 with the screw 263,
The screw 263 is loosened for adjustment.

The patient's pupil line recorded by the eyepoints checker 26 provided on the face bow 2 is reproduced on the articulator A. Therefore, the eyepoints parallel checker A1 according to the present invention is configured so that the pupil line display unit A1 as shown in FIG.
1 and a support portion A12 that rotatably supports the pupil line display portion A11, and the support portion A12 includes the articulator A.
The incisal pin A2 is provided so as to be vertically movable. The reproduction method is performed by setting the transfer pin 24 provided with the eyepoints checker 26 on the articulator A and adjusting the pupil line display portion A11 according to the inclination of the flat plate 261.

Usually, since the incisal pin A2 of the articulator A is a rod having a circular cross section, a flat surface portion A13 is formed in a part as shown in the drawing, and the supporting portion A12 is rotated around the incisal pin A2. It is preferable to have no structure. By doing so, the pupil line display portion A11 is always held parallel to the articulator A, and errors during reproduction can be reduced.

As means for reproducing the recorded patient's pupil line on the articulator A, an eyepoints parallel checker A1 is provided on the incisal pin A2, and FIG.
As described above, the eyepoints parallel checker A1 may be provided side by side on the dentition model adjusting plate 11 of the occlusal analyzer 1.
The denture model adjusting plate 11 illustrated in the present embodiment has a structure divided into front and rear, and the back side is curved in accordance with Wilson's curve effective for constructing a denture, and is provided so as to be slidable left and right. As a method of reproducing the pupil line of the eyepoints parallel checker A1, since the tilt of the eyepoints checker 26 does not change even if it is moved in parallel, the eyepoints checker 26 is replaced upside down as shown in FIG.
It goes according to the height of.

As another example of the embodiment of the occlusal analysis method according to the present invention, the reproduction of the patient's pupil line recorded by the eyepoints checker 26 is performed by the eyepoints parallel checker A1 on the incisal pin A2 of the articulator A. If provided, it is performed at the stage of FIG. If the occlusal analyzer 1 is provided with the eyepoints parallel checker A1, the occlusal analyzer 1 is set in the articulator A of FIG. 3D.

FIG. 7 shows another example of the embodiment of the occlusal analysis apparatus 1 according to the present invention, in which the dentition model adjusting plate 11 is divided into left and right parts so that the left and right parts are individually aligned with the virtual occlusal plane. It was made possible. This makes it possible to effectively deal with a patient having a large difference between the left and right virtual occlusal planes. In the occlusal analysis apparatus 1 of this example, the dentition model adjusting plate 11 is rotatably provided about the vertical axis, and the dentition model adjusting plate 11 can be rotated according to the midline. The rotation of the dentition model adjusting plate 11 is performed by loosening the rotation adjusting screw 14, and the rotation adjusting screw 14 is tightened and fixed according to the midline. As in the present example, the dentition model adjusting plate 11 is divided into left and right parts at the center thereof, so that it is possible to easily adjust the dentition model adjusting plate 11 according to the midline by using the divided parts as a reference. Also, in this example, the slide adjustment screw 15
By loosening, the dentition model adjusting plate 11 can be slid to the left and right.

FIG. 8 shows another example of the face bow 2 according to the present invention. In the front part of the bite fork 25 attached to the simple bow body 21, a midline indicator rod 27 as a midline recording tool is provided. It is rotatably provided. The midline of the patient recorded by the midline indicator rod 27 is marked on the maxillary dentition model 12 at the stage of FIG. 3 (c). By marking with a line segment, the sagittal plane of the patient can be represented.

FIG. 9A shows an example of an embodiment of the reference marker 3 according to the present invention. The ruler body 34 for marking the front reference point has the front reference point indicating portion 31 on the right side of the upper jaw. Middle incisor incision indicator 32 to 43
The structure is provided at a position of mm, and an extension portion 33 is further extended from the front reference point designating portion 31. The ruler body 34 is
Made of stainless steel plate with a thickness of 0.5 mm, width 15
mm, 80 mm from the base to the cutting edge indicating portion 32, the cutting edge indicating portion 3
Front reference point indicator 3 with a length of 1 mm at a position of 2 to 43 mm
1. The total length is 170 mm provided with an extension 33 of 46 mm from the front reference point designating portion 31.

The method of marking the front reference point with the reference marker 3 is as shown in FIG.
Align 2 with the incisal edge of the patient's upper right central incisor and extend the extension 33
Is positioned on the inner canthus, the front reference point designating unit 31
Mark at the point indicated by.

FIG. 7C shows another example of the embodiment of the reference marker 3 according to the present invention, in which the front reference point indicating portion 31 is movably provided on the ruler body 34 provided with scales. The articulator A can be used.

FIG. 3D shows still another example of the embodiment of the reference marker 3 according to the present invention.
An ear canal insertion portion 35 which is made to project from a base portion of the ruler body 34 in a direction orthogonal to a side edge opposite to the front reference point indicating portion 31.
Is provided. The external auditory meatus insertion portion 35 is used when marking a virtual occlusal plane, and is inserted into the lower auditory canal of a patient to hold the position of the external auditory meatus serving as a reference of the virtual occlusal plane. In this example, the ear canal insertion portion 35 has a diameter of 8 mm and is made of polypropylene. The virtual occlusal plane is a straight line that connects the lower edge of the nose blade and the upper edge of the tragus, that is, the plane determined by the nasal auditory canal line, and is called the Campel plane. According to Gysi, the nose blade is Since the plane connecting the lower edge and the lower edge of the ear canal is more parallel to the occlusal plane, in this example, the ear canal insertion part 3
5 is provided at a position in contact with the side edge of the ruler body 34. The reference marker 3 is used in the virtual occlusion plane by inserting the external auditory meatus insertion portion 35 into the external auditory meatus of the patient and marking the extension portion 33 at a position pointing to the lower edge of the nasal blade as shown in FIG. The slope can be represented.

[0041]

As described above, according to the occlusal analysis apparatus and the analysis method thereof according to the present invention, the inclination of the virtual occlusal plane of the patient can be easily and surely reproduced in the articulator, and the edentulous jaw and the occlusal can be detected. Reconstruction therapy can be very effective.
Further, it is possible to add aesthetics by aligning the anterior tooth part with the midsagittal plane and making it parallel to the pupil line. Adding aesthetics is not only effective in terms of aesthetics such as good appearance in harmony with facial features and elimination of discomfort, but it is also effective in constructing dentures and prostheses such as improved occlusal engagement. It has a very beneficial effect.

The reference marker according to the present invention is provided with an extension portion further than the front reference point indicating portion,
The direction of pointing the front reference point designating section can be determined, and the marking of the front reference point becomes extremely accurate. Further, by providing the external auditory meatus insertion portion in the ruler body, it becomes possible to more easily and reliably perform the marking of the inclination of the virtual occlusal plane of the patient.

[Brief description of drawings]

FIG. 1 is a side view showing an example of an embodiment of an occlusion analyzer according to the present invention.

FIG. 2 is a side view showing an example of an embodiment of a face bow according to the present invention.

FIG. 3 shows an example of an embodiment of a procedure according to the occlusal analysis method according to the present invention, in which (a) is a side view in which the front reference point and the inclination of the virtual occlusal plane are marked on the patient's face;
(B) is a side view showing a state in which the face bow is attached to the patient's face and the inclination of the virtual occlusal plane is recorded, and (c) is a model of the maxillary dentition in which the transfer pin of the face bow is set in the articulator. Side view showing a state in which is attached, (d)
FIG. 3 is a side view showing a state in which an occlusal analyzer and a face bow are set in an articulator and a record of a virtual occlusal plane is reproduced on a dentition model adjusting plate.

FIG. 4 shows another example of the face bow according to the present invention, (a) is a side view showing an eyepoints checker provided, and (b) is a front view showing the usage state of (a). Is.

FIG. 5 is a side view showing an example of an embodiment of an eyepoints parallel checker according to the present invention.

FIG. 6A is a perspective view showing another example of the embodiment of the occlusal analysis apparatus according to the present invention, and FIG. 6B shows a state in which a pupil line is reproduced by an eyepoints parallel checker set in an articulator. It is a front view shown.

FIG. 7 is a perspective view showing still another example of the embodiment of the occlusion analyzer according to the present invention.

FIG. 8 is a perspective view showing a bite fork provided with a median line recording tool at a front portion thereof.

9A is a plan view showing an example of an embodiment of a reference marker according to the present invention, FIG. 9B is a front view showing a usage state of FIG. 9A, and FIG. 9C is a reference marker according to the present invention. Is a plan view showing another example of the embodiment of the present invention, (d) is a perspective view showing still another example of the embodiment of the reference marker according to the present invention, and (e) is a side view showing the usage state of (d). It is a figure.

[Explanation of symbols]

1 bite analyzer 11 Dental model adjustment plate 12 Maxillary dentition model 13 curved plate 14 Rotation adjustment screw 15 Slide adjustment screw 2 face bow 21 simple bow body 22 Virtual occlusal plane recorder 23 Recording member 24 Transfer Pin 25 byte fork 26 Eye Points Checker 261 flat plate 262 axis 263 screw 27 Midline indicator rod 28 Transparent plate 3 reference markers 31 Forward reference point indicator 32 Cutting edge indicator 33 Extension 34 Ruler body 35 ear canal insertion part A articulator A1 Eyepoints Parallel Checker A11 Pupil line display A12 support A13 flat surface A2 incisal pin 41 Forward reference point 42 Reference line of virtual occlusal plane

Claims (15)

[Claims] 1. An occlusal analysis which is attached to an articulator for reproducing a lower jaw movement, and is provided with a dentition model adjusting plate which is rotatably supported in the front-rear direction and the left-right direction and is movable in the up-down direction. apparatus. 2. The occlusal analyzer according to claim 1, wherein the dentition model adjusting plate is divided into right and left parts and individually supported so as to be rotatable forward and backward. 3. The occlusal analyzer according to claim 1, wherein the dentition model adjusting plate is rotatable. 4. The occlusal analyzer according to claim 1, wherein an eyepoints parallel checker is provided in a front portion of the dentition model adjusting plate. 5. The occlusal analyzer according to claim 1, wherein the dentition model adjusting plate is formed in a Wilson curve. 6. A face bow for reproducing lower jaw movements
A face bow that is used for transfer and is equipped with virtual occlusal plane recording tools on both sides of the main body. 7. A face bow for reproducing lower jaw movements
A face bow that is used for transfer and has an eyepoints checker on the front of the main body. 8. A face bow for reproducing mandibular movement
A face bow for use in transfer, comprising a midline recording tool that rotatably supports a rod-shaped body. 9. A ruler for marking a front reference point on a patient's face during face-bow transfer, wherein the ruler body further comprises an extension portion from a front reference point indicating portion for marking the front reference point. Is a reference marker. 10. The reference marker according to claim 9, wherein the ruler main body is provided with an ear canal insertion portion protruding in a direction substantially orthogonal to the main body. 11. A pupil line recorded by an eyepoints checker provided in front of a face bow is reproduced, and a lower jaw movement is reproduced by rotatably supporting the pupil line display unit. An eyepoints parallel checker comprising a support portion that is attached to an incisal pin of an articulator so as to be vertically movable. 12. An occlusal analysis device equipped with a dentition model adjusting plate for adjusting the positional relationship between the temporomandibular joint and the maxilla and the virtual occlusal plane on the face bow by face-bow transfer, and then adjusting the front-back, left-right and up-down directions. An occlusal analysis method comprising: setting the face bow on an articulator attached with, and reproducing a record of a virtual occlusal plane of the face bow on a dentition model adjusting plate of the occlusal analyzer. 13. The occlusal analysis method according to claim 12, wherein a pupil line is recorded by face-bow transfer and the pupil line is reproduced by an eyepoints parallel checker provided in the occlusal analysis apparatus. 14. A face bow transfer is used to record a pupil line with an eyepoints checker provided in front of the facebow, and then the eyepoints checker is set in an articulator to record the pupil line with the occlusion. A method for occlusal analysis, which is reproduced on an eyepoints parallel checker provided on an incisal pin of a vascular instrument. 15. A median line recording device having a rod-shaped body rotatably supported by a face bow transfer by a face bow transfer records a midline and then sets the midline recording device in an articulator. Then, the occlusal analysis method is characterized in that the record of the midline is marked on the maxillary dentition model.