a Record control number 000342543500030

a ISSN 0022-3913

a Original cataloging agency NEU GrandLibrary

a Language code of text/sound track or separate title eng

a Classification number WU 29

b Item number .F56 2014

a Personal name Oyar, Perihan.

a Title Finite element analysis of stress distribution in ceramic crowns fabricated with different tooth preparation designs.

h Medium Electronic Document

c Statement of responsibility, etc Oyar, Perihan, Mutahhar Ulusoy, Gurcan Eskitascloglu.

b Name of publisher, distributor, etc Mosby-Elsevier,

c Date of publication, distribution, etc 2014.

a Place of publication, distribution, etc New York :

a Summary, etc Statement of problem. Information about the effect of occlusal preparation designs on the stress distribution in different ceramic crowns and the prepared tooth is limited. Purpose. The purpose of this study was to investigate the effects of anatomic and nonanatomic occlusal preparation designs on the stress distribution in ceramic crowns, teeth, and bone. Material and methods. Finite element analysis was performed on models of a mandibular second premolar. A load of 400 N was applied to the models to test ceramic materials (In-Ceram, Empress Esthetic) and occlusal preparation (anatomic, nonanatomic) designs. Results. The lowest stress value occurred in the core material in the Empress Esthetic model prepared with the nonanatomic occlusal preparation design. In all groups, higher stress values were found to be concentrated in the lingual half of the dentin. Lower stress values were located near the apex of the pulp tissue and bony tissue that surround the root apex. Conclusions. Differences in preparation designs did not result in differences in the distribution or amount of stress in pulp, dentin, or bone. The use of different ceramic materials resulted in no differences in the amount or distribution of stress in pulp and bone. The use of a crown with a high elastic modulus led to increases in stress values in the restoration and the dentin margin, and decreases in stress values in the occlusal surface of the dentin. The nonanatomic design can be recommended as a favorable preparation design for Empress Esthetic ceramic.

a Topical term or geographic name as entry element Dentistry

a Topical term or geographic name as entry element Near East University Article

a Topical term or geographic name as entry element Yakın Doğu Üniversitesi Makale

a Topical term or geographic name as entry element Oral Surgery & Medicine

a Topical term or geographic name as entry element Dental Restorations

a Main entry heading Journal Of Prosthetic Dentistry

g Relationship information OCT 2014, Vol 112, Issue 4, p871-877

x International Standard Serial Number 0022-3913

u Uniform Resource Identifier http://library.neu.edu.tr:2048/login?url=http://dx.doi.org/10.1016/j.prosdent.2013.12.019