Denture base and method of preparing it and instrument used therefor

Abstract

A denture base which is used in a dental therapy field and capable of providing an occlusion suitable for each patient, wherein a denture is arranged along an occlusion curve represented based on the radius of curvature R of an optimal dentition determined from an X-ray photograph of a patient's temporal region and the center point set on a resultant force line representing the direction of a standard resultant force of forces produced at occluding. As the standard resultant force line, a line connecting a point at the front edge center of a frontal sinus on the X-ray photograph of the temporal region with an angle of lower jaw can be used. This denture base uses an articulator provided with a length-adjustable pendulum-shaped arm having a protrusion at the tip end thereof and supported three-dimensionally pivotally to bring a model supported on an upper jaw supporter and a lower jaw supporter into contact with the claw of the arm with the arm pivoting to thereby three-dimensionally display an occlusion curve having a radius of curvature equal to the effective length of the arm and fix the denture along the occlusion line.

Description

technical field [0001] The present invention relates to a denture base suitable for dental treatment for edentulousness, multiple tooth defects, etc., a method for preparing the denture base, and an instrument and components used in the manufacture of the denture base. Background technique [0002] In denture base treatment and implant treatment for edentulous, multiple tooth defects, etc., it is extremely important to achieve an ideal occlusion of dentures and bridges. In the past, when providing the occlusion, corresponding to the anatomical form of the oral cavity and perioral-based, hard tissues, and several imaginary baselines and planes formed after calculating their averages, capturing the common mastication of the mandible sports. In addition, in the current situation, in actual treatment, doctors and nurses perform occlusal re-occlusion of each patient based on such a normal mastication movement. [0003] The re-realization of the occlusion of each patient by doct...

AI Technical Summary

Problems solved by technology

In addition, in the current situation, in actual treatment, doctors and nurses realize the occlusion of each patient again based on such ordinary mastication movements.

[0003] The re-realization of the occlusion of each patient by doctors and nurses mainly depends on the experience and feeling of doctors and nurses. However, there is no benchmark for the direction and magnitude of the force of intense chewing during actual occlusal, so it is difficult to quantify To achieve the ideal occlusion of each patient, for example, in the case of producing a denture base for an edentulous patient, there is a problem that it takes a long time and effort to produce a denture base that the patient satisfies.

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