Influence of cusp inclination of artificial posterior teeth on abutment displacement of the telescope crown denture
- VernacularTitle:牙尖斜度对套筒冠义齿基牙位移的影响
- Author:
Yang TAO
- Publication Type:Journal Article
- Keywords:
Telescope crown;
Cusp inclination;
Abutment;
Displacement
- From:
Journal of Practical Stomatology
2000;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the influence of cusp inclination of artificial posterior teeth on abutment displacement of unilateral distal-extension telescope crown denture.Methods:Study models of mandibular unilateral distal-extension and telescope crown dentures with the cusp inclination of 0?,12?,25? and 33? were respectively prepared. When food chip was masticated on the occlusal surface and the dentures were loaded by 29.4 N, 49 N or 68.6 N, the abutment displacement was measured.Then the data were calculated and reciprocally compared with statistical analyses. Results:Between anatomic and 25? semi-anatomic artificial posterior teeth, there were significant differences in the buccolingual and vertical abutment movement(P0.05). The parallel, inclination, twist-like and vertical movement of abutment increased with the increase of the load on the denture. The difference among different level of load was statistically significant (P
