Mucosal Thickness of the Denture Foundation after Occlusal Force

点击翻译按钮获取中文摘要

Examining of the compressibility of the denture foundation is very important for construct of a denture. The areas, especially the torus palatinus area, should not be pressured excessively by a denture and relief is usually necessary for such specific areas.The purpose of this study was to investigate the compressibility of the denture foundation and to determine the amount of relief in thickness over the specific areas.The main results were follows :1.Decrease in the mucosal thickness under maximum occlusal force was about 0.3mm in averages.2.Decreasing rate in the mucosal thickness under maximum occlusal force was greater in a mandible than in a maxilla.3.Judging from the decrease in the mucosal thickness by relief procedures, it was found that 0.5mm relief in thickness was necessary in a case of a severe torus palatinus and 0.25-0.50mm relief in a moderate one.4.Even in a case without the existance of torus palatinus, about 0.25mm relief in thicknesss was desirable over the incisive papilla and median palatine suture areas.