人工歯の排列位置が鉤歯に及ぼす影響 : 特に頬舌的差異について

概要

論文の詳細を見る
Numerous devices to improve various components of removable partial denture have been made to meet two requirements, i.e., retoration of defective function and protection residual tissue. The artificial tooth, as a denture prosthesis, has gradually progressed from a simple anatomical structure complementing defect and changecl to a non-anatomical artificial tooth, an articulation or a tooth arrengement mechanically stabilizing a removable partial denture. Most, hoxvever, aim at improving mastication, but little attention has been paid to the influence on residual tissue, in particular on abutment. We therefore measured effect of the articulation force imposed on either the lingual or buccal side of a denture site on the horizontal movement of an abutment tooth long axis. this was determined as the flexing strain by a bridge circuit based on the 2 gauge Active-Active method during function of a lower free end removable partial denture using experimental Kennedy's II model. Our conculusions are as follows : The load on the lingual side of the defect, in comparison with the load on buccal one, reduced horizontal stress on direct and indirect abutment and increased the effect of crossarch stabilization, thus was a more beneficial condition for protection of abutment.
日本補綴歯科学会の論文
1991-02-01