Finite element analysis to compare stress distribution of connector of lithia disilicate-reinforced glass–ceramic and zirconia-based fixed partial denture
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Jie Lin • Akikazu Shinya • Harunori Gomi • Akiyoshi Shinya
- چاپ و سال / کشور: 2011
Description
This study used finite element method to analyze the stress distribution in connector of ceramic-based bilayer structures, in simulation of dental crown-like structures with a functional but weak veneer layer bonded onto a strong core layer. The purpose of this study was to evaluate the stress distribution at veneer/core interface of 2 different core materials [Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) and lithia disilicate-reinforced glass–ceramic] using three-dimensional finite element analysis. Within the limitations of this study, finite element analysis showed that stress concentrations were located at the veneer/core interface of the connector in Y-TZP core models. The general observation was that compared with Y-TZP, lithia disilicate-reinforced glass–ceramic showed a relatively stable stress value and had a minor effect on the stress concentration susceptibility.
Odontology DOI 10.1007/s10266-011-0025-2 Received: 16 September 2010 / Accepted: 4 February 2011
