JPH0155018B2 - - Google Patents

Description

[Detailed description of the invention] Purpose: Traditionally, the arrangement and implantation of dentures on the occlusal surface after occlusal registration was performed based on the technician's knowledge and long-standing intuition. Due to errors caused by technical mistakes during manual operation, there are situations in which the product is turned over and cannot be chewed properly during actual use.

The present invention accurately copies the alveolar crest line of a plaster model taken from the gums onto a transparent gauge plate without any errors, accurately grasps the occlusal relationship between the upper and lower jaws, and appropriately designs the arrangement of artificial teeth and the occlusal floor. The purpose is to get used to it.

Configuration: The back plate 2 is pivoted to the bearing 3 of the instrument stand 1 so that it can be raised and lowered,
Pin holes 6 and 7 at different positions at the rear end of the arm 5 are selectively inserted into the pivot 4, and a transparent gauge plate 9 is held by a clamping body 8 rotatably provided at the tip of the arm. is held horizontally, and a support plate 11 is placed on both the front and back sides of a long hole 10 in the front and back direction provided in the center of the plate, and the plates are joined and fixed with a screw 12, and a support pin is inserted through the plate and the long hole. 13 is installed vertically.

Effect: A model A of the maxillary or mandibular gums made of plaster is adhered to the holder 1 or the back plate 2 of the articulator, and the alveolar crest line 14 is drawn on each of the model surfaces. An occlusal bed B made by pressing paraffin on a gum model A is placed in the patient's mouth, placed over the gums, and an occlusal sample is taken, and then removed from the gums.

A gauge plate 9 is supported horizontally above a lower jaw model A placed on a table 1 of an articulator. The height should be such that when the occlusal floor is placed over the model, the floor surface will come into contact with the gauge plate. In this case, the support pin 13 is moved left and right and adjusted so that its lower end is in contact with the sublingual area. Next, look through the alveolar crest line 14 of the lower brim on the model surface from above the gauge plate and draw a dotted line A on the plate surface to match this line.

Next, the arm 5 is rotated to support the gauge plate 9 horizontally with the maxillary model A attached to the back plate 2 and with the same distance from the model as described above, and adjust the position of the support pin 13 to the maxillary hard cap. After adjusting the upper flange alveolar crest line 14 to be in contact with , perform the same operation as described above to trace the upper flange alveolar crest line 14 on the gauge plate surface as a solid line B.

In this operation, the position or height of the gauge plate and the support pin is determined by the rotation of the arm 5, the selection of pin holes 6 and 7 with respect to the pivot 4, the rotation of the clamp 8, and the support along the elongated hole 10. It is adjusted and determined by the movement of the pin 13 and the vertical movement of the support pin.

To make artificial teeth, place the occlusal bed B over the model A (Fig. 3), place the gauge plate 9 on the floor surface, match the lines A and B on the surface, and place one denture on the top surface of the floor. (Figure 7).

The alveolar crest line 14 of the model is copied onto the gauge plate 9 to accurately grasp the occlusal relationship between the upper and lower brim, so the dentures are aligned and implanted along this line without any errors, and the permanent occlusion is determined based on this line. It is easy to decide whether to choose a crossbite or a double alignment.

[Brief explanation of drawings]

Figure 1 is a slope view, Figure 2 is a side view, Figure 3 is a front view (with the occlusal floor fitted), Figure 4 is a plan view of the gauge plate, Figure 5 is a back view of the same, Figure 6 is a FIG. 7 is the same plan view (partially cut away, placed on the model), and FIG. 7 is the same plan view (partially cut away, placed on the occlusal floor). 1 is the table, 2 is the back plate, 3 is the bearing, 4 is the pivot, 5
1 is an arm, 6 and 7 are pin holes, 8 is a clamping body, 9 is a gauge plate, 10 is a long hole, 11 is a support plate, 12 is a screw, and 13 is a support pin.

Claims (1)

[Claims] 1. The back plate 2 is pivotally mounted to the bearing 3 of the instrument base 1 so as to be freely raised and folded, and the pin holes 6 and 7 at different positions at the rear end of the arm 5 are selectively inserted into the pivot 4, A transparent gauge plate 9 is horizontally clamped by a clamping body 8 rotatably provided at the tip of the arm, and a support plate 11 is applied to both the front and back sides of a long hole 10 in the front and back direction provided in the center of the plate. This articulator is equipped with a gauge plate for artificial tooth arrangement and design, in which the plates are connected and fixed with a screw 12, and a support pin 13 is vertically installed by penetrating the plate and the long hole.