JPH075608U - Articulator flat plate - Google Patents

Abstract

(57) [Summary] [Purpose] The occlusal state of the patient can be accurately reproduced,
To provide an occlusal plane plate of an articulator capable of easily manufacturing a denture such as a local denture or a full denture. [Structure] When manufacturing a denture, separate or open the upper and lower jaw model arches that make up the articulator, place the upper jaw model on the flat plate of the occlusal plane plate fixed to the lower jaw model arch, and then from the cephalometric photograph. Move the plane plate of the occlusal plane plate up and down and tilt to a height position and tilt angle that are parallel to the measured occlusal plane, and select the support pin, support bar, and support plate to finely adjust the upper jaw model. Adjusting and variably adjusting the upper jaw model placed on the flat plate of the occlusal flat plate, the upper jaw model arch and the upper jaw model are integrally fixed with plaster. After that, the occlusal plane plate was removed, the articulator was turned upside down, and then the upper jaw model and the lower jaw model fixed to the upper jaw model arch side were occluded and temporarily fixed, and the lower jaw model arch and the lower jaw model were plastered. By integrally fixing with, the occlusal state of the patient can be accurately reproduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an occlusal plane plate of an articulator used for reproducing an occlusal state of a patient when manufacturing a denture such as a local denture or a complete denture.

[0002]

[Prior art]

 Conventionally, as a method for producing a denture such as the above example, for example, a face bow of a Fisher type or an earpiece type is attached to the patient's face to measure the occlusal relationship, and then the face bow is attached to a Hannau articulator. Attach and move the cast support fixed to the mandibular model bow up and down to support the facebow bite fork at a height position and inclination angle that is parallel to the virtual occlusal plane determined with the Frankfurt plane as the reference. After placing the maxillary model on the Itofolk, the maxillary model arch and the maxillary model are integrally fixed with plaster. Next, after removing the face bow and cast support, the articulator was turned upside down, and the upper jaw model and the lower jaw model fixed to the upper jaw arch side were occluded and temporarily fixed, and the lower jaw arch and lower jaw were fixed. By integrally fixing the model with plaster, the occlusal state of the patient can be reproduced by the occlusal movement of the upper and lower jaw models, and a denture can be manufactured using the upper and lower jaw models.

[0003]

[Problems to be solved by the device]

 However, when measuring the occlusal relationship of a patient with a face bow as described above, the occlusal structure differs depending on factors such as the living environment, the type of food, and the intake method, so visual errors occur due to differences in facial features. It is easy, and because the wearing state of the face bow is unstable, there are variations in the measured values, making it difficult to accurately measure the occlusal relationship of the patient. Moreover, since the upper jaw model placed on the bite fork is vertically moved by the cast support, the upper jaw model can be adjusted up and down to an appropriate height position, but with respect to the virtual occlusal plane measured by the face bow. There is a problem that it is difficult to set the maxillary model at a tilt angle that is parallel, and an accurate occlusal state cannot be reproduced.

In view of the above problems, the present invention variably adjusts the plane plate of the occlusal plane plate to a height position and an inclination angle that are parallel to the occlusal plane measured from the cephalograph, so that the occlusal state of the patient can be adjusted to the upper and lower jaws. It is an object of the present invention to provide an occlusal plane plate of an articulator that can be accurately reproduced by a model and can easily manufacture a denture suitable for a patient.

[0005]

[Means for Solving the Problems]

 The occlusal plane plate of the articulator of the present invention is provided with a base fixing means for connecting and fixing a fixed base to the lower jaw model arch on the surface facing the lower jaw model arch and the fixed base constituting the articulator. A bearing portion is erected at the center of the upper surface of the movable table, and the lower end of the movable table is rotatably connected to the bearing so that the shaft hole is formed in the central portion of the upper surface of the movable table. A shaft portion vertically erected in the central portion on the lower surface side of the flat plate is vertically slidably inserted into the shaft hole of the movable table, and is mounted on the front edge portion on the upper surface side of the flat plate and the flat plate. A plurality of support pins formed with different lengths are selected between the incisor papillae of the upper jaw model and vertically erected, and are placed on the upper edge rear edge of the flat plate and the flat plate. It is characterized by being an occlusal plane plate of an articulator in which a plurality of support plates formed at different heights from the left and right claw notch portions of the maxilla model are selected and erected.

[0006]

[Action]

 This invention separates or opens the maxillary model arch and the mandibular model arch that compose the articulator, and connects and fixes the mandibular model arch of the articulator and the fixing base of the occlusal plane plate with the platform fixing means. Select and erect the support pins and the support plate on the flat plate of the face plate, place the incisor papilla of the maxilla model on the support pin, and place the left and right claw notches of the maxilla model on the support plate. After placing it, move the plane plate of the occlusal plane plate up and down and tilt it to a height position and tilt angle that are parallel to the occlusal plane measured from the cephalogram, and select the support pin and the support plate. Fine adjustment of the height position and inclination angle of the maxilla model is performed, and the maxillary model arch and the maxilla model are integrally fixed with plaster. After that, the occlusal plane plate was removed, the articulator was turned upside down, and then the upper jaw model and the lower jaw model fixed to the upper jaw model arch were occluded and temporarily fixed, and the lower jaw model arch and the lower jaw model were plastered. By fixing them together, the occlusal state of the patient can be accurately reproduced.

[0007]

[Effect of device]

 According to the present invention, the occlusal plane plate is variably adjusted to the height position and the inclination angle which are parallel to the occlusal plane measured from the cephalometric photographs when the denture is manufactured. A more accurate occlusal relationship than the method can be measured from cephalographs, the occlusal state of the patient can be accurately reproduced by the upper and lower jaw model, and a denture suitable for the patient can be easily manufactured using the upper and lower jaw model. Moreover, since the plurality of support pins and the plurality of support plates are selected and the upper jaw model is finely adjusted to the height position and the inclination angle which are parallel to the occlusal plane, the upper jaw placed on the flat plate is adjusted. The posture of the model is stable, and more accurate adjustment can be performed than the variable adjustment by vertically moving and tilting the flat plate of the occlusal flat plate.

[0008]

【Example】

 An embodiment of the present invention will be described in detail below with reference to the drawings. The drawing shows the occlusal plane plate of the articulator that reproduces the occlusal state of the patient based on the Frankfurt plane measured from the cephalometric photograph (horizontal head X-ray standard photograph) at the time of manufacturing the denture. In addition, for example, the upper jaw model arch 2 and the lower jaw model arch 3 which form the articulator 1 of the Dentartus type, the Hannau type, the Dener type, etc. are separated or opened, and the flat plate of the occlusal plane plate 4 fixed to the lower jaw model arch 3 is used. After placing the maxillary model 6 on the face plate 5, the maxillary model 6 placed on the plane plate 5 of the occlusal plane plate 4 with the Frankfurt plane measured from the cephalography as a reference is used for supporting pins 19 described later. The support bar 20 and the support play 21 are adjusted to an appropriate height position and an appropriate inclination angle, and the upper jaw model arch 2 and the upper jaw model 6 are integrally fixed with plaster. Moreover, after removing the occlusal plane plate 4, the articulator 1 is turned upside down, and the maxillary model 6 and the mandible model 7 fixed to the maxillary model arch 2 side are occluded to each other and temporarily fixed, and the mandible model arch is fixed. By integrally fixing 3 and the lower jaw model 7 with plaster, the occlusal state of the patient can be reproduced by the occlusal movement of the upper and lower jaw models 6, 7.

As shown in FIG. 2, FIG. 3 and FIG. 4, the above-mentioned occlusal plane plate 4 mounts the fixing base 8 on the mount portion of the mandibular model arch 3 which constitutes the articulator 1, The fixing screw 3a attached to the mount portion of the bow 3 is screwed and fixed to the screw hole 8a formed in the central portion of the lower surface side of the fixing base 8. The occlusal plane plate 4 can be attached to the articulator 1 of another model by changing the pitch of the screw holes 8a formed in the central portion of the lower surface of the fixed base 8.

In addition, the lower end of the movable base 10 is inserted between the two bearing plates 9 and 9 standing upright on the center of the upper surface of the fixed base 8 so that the lower ends of the bearing plates 9 and 9 face each other. The pin insertion holes 9a, 9a formed on the surface are communicated with the pin insertion hole 10a formed at the lower end of the movable base 10, and the pin insertion holes 9a, 9a and the pin insertion hole 10a are supported by a long dimension. By inserting the shaft 11 and fixing the retaining screw 12 to the tip of the support shaft 11 by screwing, the movable table 10 is pivotally supported on the fixed table 8 so as to be rotatable back and forth.

In addition, an adjusting screw 13 screwed into the center of the side surface of one of the bearing plates 9 is pressed against the center of the side surface of the movable base 10 to tilt the movable base 10 with respect to the fixed base 8 at an appropriate inclination angle. The reference scale A formed at the upper end of the bearing plate 9 and the tilt scale B formed at the center of the side surface of the movable table 10 are aligned and tightened with the adjusting screw 13. Adjust to.

In the flat plate 5, the guide shaft 14 vertically fixed to the center of the lower surface of the flat plate 5 is vertically inserted into a guide hole 15 formed in the center of the upper end of the movable table 10 so as to be vertically slidable. Then, the adjusting screw 16 screwed into the central portion of the front surface of the movable table 10 is engaged with the locking groove 17 formed in the axial direction of the outer peripheral surface of the guide shaft 14, and the flat plate 5 is secured by mutual engagement. The rotation of the guide plate 14 is restricted so that it faces the front, and the guide shaft 14 of the flat plate 5 is tightened and fixed by the adjusting screw 16 at a position where the guide shaft 14 is vertically moved up and down appropriately.

In addition, a midline 5a is engraved in the central portion of the upper surface of the flat plate 5 in parallel with a palate raphe of an upper jaw model 6, which will be described later, and the midline 5a is formed at the front edge of the upper surface of the flat plate 5. An incision guide wire 5b is formed so as to be orthogonal to, and an elliptical pin insertion hole 18 is formed in the front-rear direction on the rear midline 5a of the incision guide wire 5b.

As shown in FIG. 5, the support pin 19 has three pins 19a, 19b, and 19c in a shape that supports the incisal papilla of the upper jaw model 6 placed on the plane plate 5 at points. The length of each pin 19a, 19b, 19c is, for example, 10 mm, 15 mm, 20 mm, and the upper end of each pin 19a, 19b, 19c has a smaller diameter in the vertical direction. Each of the pins 19a, 19b, 19b is formed into a shape, and the lower end portion of each of the pins 19a, 19b, 19c is formed to have an outer diameter dimension that is vertically inserted into and fixed to the pin insertion hole 18 formed in the flat plate 5. , 19c, the incisor papilla of the maxillary model 6 is adjusted to an appropriate height.

As shown in FIG. 6, the above-mentioned support bar 20 has 16 horizontally-arranged bars 20a, 20b, 20c, 20d, 20e, 20 placed on the rear edge of the flat plate 5 on the upper surface side. f, 20g, 20h, 20i, 20j, 20k, 20l, 20m, 20n, 20o, 20p are formed, and the short side of each bar 20a ... Is, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, and the midline of the flat plate 5 at the intermediate position that divides the lower edge of each bar 20a ... 5a are fixed in parallel with each other, and each bar 20a is supported at a right angle with respect to the rear edge of the upper surface of the plane plate 5 by the respective axial pins 22. The left and right hooks of the maxilla model 6 are selected by selecting each bar 20a. Parts is adjusted to an appropriate height 1mm units.

As shown in FIG. 7, the support plate 21 has three horizontally long plates 21a, 21b, and 21c to be placed on the rear edge of the upper surface of the plane plate 5, and each plate 21 The thickness of each of the plates 21a, 21b, 21c is formed to have a size of, for example, 1 mm, 2 mm, 3 mm, and the left and right hook notches of the upper jaw model 6 are appropriately selected by selecting or combining the plates 21a, 21b, 21c. Adjust to height.

With the illustrated embodiment configured as described above, a method for reproducing the occlusal state of the patient by the articulator 1 will be described below.

First, as shown in FIG. 8, a cephalometric photograph (a lateral X-ray standard photograph) of a patient taken at the time of diagnosis is traced, and a Frankfurt plane and a Campel plane that are more accurate than the conventional measurement method are obtained. , Occlusal plane and measure.

Next, as shown in FIG. 1, the maxillary model arch 2 and the mandibular model arch 3 constituting the articulator 1 are separated or opened, and the occlusal plane plate 4 is fixed to the mount portion of the mandible model arch 3. After mounting the base 8, the mount base of the lower jaw model arch 3 and the fixed base 8 of the occlusal plane plate 4 are fixed with the fixing screws 3a. After that, a support pin 19 of appropriate size is selected from the pins 19a, 19b, 19c in the pin insertion hole 18 of the flat plate 5 constituting the occlusal flat plate 4 and vertically inserted and fixed, and then appropriately positioned in the front and rear positions. Adjust the slide. The adjusting screw 13 screwed to the fixed base 8 and the adjusting screw 16 screwed to the movable base 10 are rotationally operated so that the height position and the inclination are parallel to the occlusal plane measured from the cephalometric photograph. The flat plate 5 of the occlusal flat plate 4 is variably adjusted to an angle, and the reference scale A formed on the fixed base 8 and the tilt scale B formed on the movable base 10 are aligned to an appropriate inclination angle.

Next, a support bar 20 having a height equal to the left and right claw notch portions and the occlusal plane distance of the maxilla model 6 measured from the cephalograph is selected from each bar 20a. 5 is placed on the rear edge of the upper surface of the flat plate 5, or the support plates 21 having the same thickness are selected or combined from the plates 21a, 21b, 21c to the rear edge of the upper surface of the flat plate 5. After the placement, the incisor papilla of the maxillary model 6 is set on the tip of the support pin 19 which is inserted and fixed on the front side of the plane plate 5, and the supporting bar 20 of the support bar 20 placed on the back side of the plane plate 5 is set. Set the left and right claw notches of the upper jaw model 6 on the upper edge of the long side or the upper surface of the support plate 21, align the midline 5a of the flat plate 5 with the palate raid of the upper jaw model 6, and Align the incisor guide line 5b of the flat plate 5 with the median leading edge of the maxilla model 6. Let

Thereafter, as shown in FIG. 9, plaster is appropriately put on the fixed surface side of the maxillary model 6, and the maxillary model arch 2 and the maxillary model 6 are integrally fixed by the plaster, and the mandibular model arch. After removing the occlusal plane plate 4 from 2, the articulator 1 is turned upside down, and the upper jaw model 6 and the lower jaw model 7 fixed to the upper jaw model arch 2 side are occluded and temporarily fixed, and the lower jaw model 7 Placing an appropriate amount of plaster on the fixed surface side, the lower jaw model arch 3 and the lower jaw model 7 are integrally fixed with the plaster. After that, the sagittal condylar path inclination angle and the incisor path inclination angle of the articulator 1 are adjusted based on the measurement values measured from the cephalographic photographs, and the occlusal state suitable for the patient is adjusted. The occlusal movement of the patient can accurately reproduce the occlusal state of the patient, and the upper and lower jaw models 6 and 7 are used to manufacture a denture suitable for the patient.

In this way, the upper jaw model 6 placed on the plane plate 5 of the occlusal plane plate 4 is variably adjusted to a height position and an inclination angle that are parallel to the occlusal plane measured from the cephalometric photograph. Therefore, the occlusal relationship more accurate than the conventional measurement method can be measured from the cephalograph, and the occlusal state of the patient can be accurately reproduced by the upper and lower jaw models 6 and 7 and adapted to the patient using the upper and lower jaw models 6 and 7. The denture can be easily manufactured.

Moreover, by selecting each pin 19a of the support pin 19, each bar 20a of the support bar 20, and each plate 21a of the support plate 21, the height position parallel to the occlusal plane is selected. And, since the upper jaw model 6 is finely adjusted to the tilt angle, the posture of the upper jaw model 6 placed on the flat plate 5 is stabilized, and the flat plate 5 of the occlusal flat plate 4 is vertically moved and tilted to be variably adjusted. You can make more accurate adjustments than you can.

In the correspondence between the configuration of the present invention and the above-mentioned embodiment, the base fixing means of the present invention corresponds to the fixing screw 3a screwed to the lower jaw model arch 3 of the embodiment, and the same applies to the fixing screw 3a. The bearing portion of the base corresponds to the bearing plates 9 and 9 of the fixed base 8, the shaft portion of the plane plate corresponds to the guide shaft 14 of the plane plate 5, and the shaft hole of the movable base is the guide hole of the movable base 10. Corresponding to the holes 15, the supporting pins correspond to the supporting pins 19 and the respective pins 19a, 19b, 19c, and the supporting plate corresponds to the supporting bars 20 and the respective bars 20a, 20b, 20c, 20d, 20e, 20f, 20g, 20h. , 20i, 20j, 20k, 20l, 20m, 20n, 20o, 20p, and the support plate 21 and the respective plates 21a, 21b, 21c, the present invention is limited to only the configuration of the above-described embodiment. Not a thing.

In the above-described embodiment, the flat plate 5 that constitutes the occlusal flat plate 4, the pins 19 a of the support pin 19, the bars 20 a of the support bar 20, and the plates 21 a of the support plate 21. ... and is used to set the maxillary model 6 in a state parallel to the occlusal plane, but, for example, only the plane plate 5 constituting the occlusal plane plate 4 is vertically moved and tilted to be parallel to the occlusal plane. The upper jaw model 6 may be set, and each pin 19a of the support pin 19, each bar 20a of the support bar 20, and each plate 21a of the support plate 21 may be selectively used to form an occlusal plane. The upper jaw model 6 may be set in a parallel state.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an articulator showing a mounted state of an occlusal plane plate and an upper jaw model.

FIG. 2 is an overall perspective view of an occlusal plane plate showing a separated state of the plane plate.

FIG. 3 is a side view showing the tilting motion of the occlusal plane plate.

FIG. 4 is a front view showing the vertical movement of the occlusal plane plate.

FIG. 5 is a perspective view showing types of support pins.

FIG. 6 is a perspective view showing types of support bars.

FIG. 7 is a perspective view showing types of support plates.

FIG. 8 is an explanatory diagram showing a positional relationship of planes measured from a cephalometric photograph.

FIG. 9 is a side view of the articulator showing the fitted state of the upper and lower jaw models.

[Explanation of symbols]

 1 ... Articulator 2 ... Upper jaw model bow 3 ... Lower jaw model bow 4 ... Occlusal plane plate 5 ... Plane plate 6 ... Upper jaw model 7 ... Lower jaw model 8 ... Fixed base 9 ... Bearing plate 10 ... Movable base 14 ... Guide shaft 15 ... Guide Hole 18 ... Pin insertion hole 19 ... Support pin 20 ... Support bar 21 ... Support plate

Claims (1)

[Scope of utility model registration request] 1. An upper jaw model is placed on a flat plate of an occlusal plane plate fixed to a lower jaw model arch, and the upper jaw model is fixed to a lower central portion of the upper jaw model arch, and then the upper and lower jaw models are mutually attached. An articulator which is occluded and fixed to an upper jaw model arch and a lower jaw model arch, and reproduces the occlusal state of the patient by the occlusal movement of the upper and lower jaw models, wherein the lower jaw is located on the facing surface between the lower jaw model arch and the fixing base. A base fixing means for connecting and fixing the fixed base to the model bow is provided, and a bearing portion is erected at the central portion on the upper surface side of the fixed base, and the lower end portion of the movable base is rotatable back and forth with respect to the bearing portion. A shaft hole is formed in the central portion on the upper surface side of the movable table, and a shaft portion hung on the central portion on the lower surface side of the flat plate is vertically slidably inserted into the axial hole of the movable table; Formed in different lengths between the front edge of the upper surface of the flat plate and the incisor papilla of the maxillary model placed on the flat plate A plurality of support pins are selected and erected, and formed at different heights between the rear edge of the upper surface of the flat plate and the left and right claw notch portions of the maxilla model placed on the flat plate. The occlusal plane plate of the articulator, which is erected by selecting each of the plurality of supported plates.