2009 Fiscal Year Final Research Report

A study of clinical application of dental zirconia as clasp of removable partial denture

Research Project

Project/Area Number	20791435
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Prosthetic dentistry
Research Institution	Kagoshima University
Principal Investigator	HASHIGUCHI Makiko Kagoshima University, 大学院・医歯学総合研究科, 客員研究員 (10457658)
Project Period (FY)	2008 – 2009
Keywords	クラスプ / ジルコニア / 歯学 / 物性 / 部分床義歯
Research Abstract	As the result of bending test, the bending strengths of NANOZR were higher than those of Y-TZP. This result suggests that NANOZR is more suitable for the clasp of removable partial denture than Y-TZP. On the other hand, as the concern about low temperature degradation (LTAD) of zirconia through the polymerization procedure, the degrees of LTAD were determined by the XRD study. The result of XRD study suggested that the monoclinic content of zirconia was slightly increased, means the zirconia was suitable material for the denture resin. Moreover, as the fatiegue test, the cantilever test was planned to determine the thickness of zirconia clasp. As the wing type of clasp was difficult to form, bar type was palnned.