Paper Title:
FEA-Predicted Subsurface Damage in Micro Finishing of a Feldspar Porcelain Using Fine-Grit Dental Burs
  Abstract

Biocompatible ceramic structures are used to replace missing teeth, tooth structure lost to disease or trauma, and un-aesthetic healthy, tooth enamel. Recreating aesthetics and function are the two practical goals of such restorative treatment. However, the failure rate of ceramic prostheses is relatively high due to their inherent brittleness. A primary reason to premature failure of ceramic prostheses is surface and subsurface damage induced in dental intraoral finishing using dental handpieces and abrasive burs. In this paper, finite element analysis (FEA) was applied to predict quantitatively finishing-induced stress fields and subsurface damage depths in dental porcelain surfaces using fine grit diamond burs. The results indicate that while finishing using fine diamond burs diminished subsurface damage, damage depths of smaller than 20 m remained depending on the bur depth of cut and feed rate. In the FEA modeling, the minimum damage was obtained under very fine finishing conditions.

  Info
Periodical
Edited by
Jun Wang,Philip Mathew, Xiaoping Li, Chuanzhen Huang and Hongtao Zhu
Pages
562-566
DOI
10.4028/www.scientific.net/KEM.443.562
Citation
X. F. Song, L. Yin, "FEA-Predicted Subsurface Damage in Micro Finishing of a Feldspar Porcelain Using Fine-Grit Dental Burs ", Key Engineering Materials, Vol. 443, pp. 562-566, 2010
Online since
June 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Fei Song, Ling Yin
Abstract:Failure rate is noticeably high in dental bioceramics for restorations even though progress has been made in reinforcement of the materials....
203
Authors: Ling Yin
Abstract:The application of abrasive technology in dentistry dates from 7000–9000 years. How does this ancient technology affect our modern society...
363
Authors: Jian Hui Peng, Xiao Fei Song, Ling Yin
Abstract:Intraoral adjustment of ceramic prostheses involving cutting process is a central procedure in restorative dentistry because the quality of...
1687
Authors: Ke Tao Geng, Yu Guo Wang, Xiao Fei Song, Shu Min Wan, Bin Lin
Chapter 15: Materials Processing Technology
Abstract:With the aesthetics’ enhancement, there is a growing demand for the use of restorative ceramics in dental surgery. However, ceramic materials...
1663
Authors: Hai Tao Ren, Xiao Fei Song, Xiao Feng Zhang
Chapter 1: Grinding
Abstract:Oral adjusting of ceramic prostheses involving abrasive machining using dental high-speed rotary cutting instruments is a central process in...
36