DENTURE BASE AND METHOD OF PREPARING IT AND INSTRUMENT USED THEREFOR

摘要

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.