Modal analysis of the maxillary dentition with maxillary obturator prostheses comparing different retainer types of metal frameworks

2015 Fiscal Year Final Research Report

• Project/Area Number: 25861836
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: Hoshiai Taiji 東京医科歯科大学, 歯学部附属病院, 医員 (60611928)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 顎顔面補綴学 / 上顎顎義歯 / モード解析 / 金属床義歯 / 上顎欠損 / チタン合金

Outline of Final Research Achievements

The supporting structures, such as abutment teeth and residual ridges, are subjected to rotational, nonvertical, torqueing, or horizontal forces. Because the form and weight of maxillary obturator prostheses act as cantilever, the forces occurring with prostheses function can be widely distributed and directed, and their effect minimized by appropriate design of the maxillary obturator prosthesis. Cast maxillary obturator prostheses with different types of retainers are frequently fabricated. The aim of the present study is to analyze the vibratory characteristics of the maxillary dentition with maxillary obturator prostheses comparing different retainer types of metal frameworks using modal analysis.
As the result of this study, from the viewpoint of preserving abutment teeth and residual ridges, we suggeted that the indirect retainer to anterior teeth is important for designs of metal framework obuturator prosthses.

Free Research Field

顎顔面補綴学部分野