RETRACTED: A three-dimensional finite element analysis of the effects of restorative materials and post geometry on stress distribution in mandibular molar tooth restored with post-core crown (Retracted article. See vol. 33, pg. 147, 2014)

被引：16
作者：
Mahmoudi, Mojtaba [2 ]
Saidi, Alireza [2 ]
Nassab, Saied Abdolreza Gandjalikhan [2 ]
Hashemipour, Maryam Alsadat [1 ]
机构：
[1] Kerman Oral & Dent Dis Res Ctr, Fac Dent, Dept Oral Med, Kerman, Iran
[2] Shahid Bahonar Univ, Sch Engn, Dept Mech Engn, Kerman, Iran
来源：
DENTAL MATERIALS JOURNAL | 2012年 / 31卷 / 02期
关键词：
Finite element analysis; Stress; Molar teeth; Post-core crown; COMPOSITE RESIN; TEETH; ROOT; RESISTANCE; STRENGTH; PREMOLAR; BEHAVIOR; SYSTEMS; INLAYS;
D O I：
10.4012/dmj.2011-138
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
This study investigated the effects of crown material, post material, and post geometry on stress distribution in molar tooth restored with post-core crown. A three-dimensional solid model consisting of the mandibular second molar tooth, periodontal ligament, cortical bone, and spongy bone was generated. Finite element analysis results showed that prefabricated posts with a composite resin core increased stress concentration at the cementoenamel junction (CEJ), while cast posts induced high stress at post-dentin interface. Increase in the elastic modulus of crown material also increased the stress concentration, especially at CEJ.
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页码：171 / 179
页数：9
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