Thermomechanical advantages of functionally graded dental posts: A finite element analysis

被引：9

作者：

Dabbagh, Ali ^{[1
]}

Madfa, Ahmed ^{[2
]}

Naderi, Sadjad ^{[3
]}

Talaeizadeh, Mahtab ^{[4
]}

Abdullah, Hadijah ^{[4
]}

Abdulmunem, Mohamed ^{[4
]}

Abu Kasim, N. H. ^{[1
,4
]}

机构：

[1] Univ Malaya, Inst Res Management & Serv, Wellness Res Cluster, Kuala Lumpur, Malaysia

[2] Univ Thamar, Dept Conservat Dent, Fac Dent, Dhamar, Yemen

[3] Univ Sheffield, Dept Mat Sci & Engn, Sheffield, S Yorkshire, England

[4] Univ Malaya, Dept Restorat Dent, Fac Dent, Kuala Lumpur, Malaysia

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2019年 / 26卷 / 08期

关键词：

Functionally graded dental post; thermomechanical stress; stress analysis; strain analysis; endodontic treatment; tooth fracture; FRACTURE-RESISTANCE; STRESS-DISTRIBUTION; THERMAL-STRESS; MECHANICAL-PROPERTIES; TEMPERATURE; PREMOLAR; HYDROXYAPATITE; RESTORATIONS; OPTIMIZATION; BEHAVIOR;

D O I：

10.1080/15376494.2017.1410909

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study aimed to fabricate dental posts with functionally graded structures comprised of zirconia, titanium, and hydroxyapatite and compare their thermomechanical behavior with homogeneous zirconia and titanium posts in simulated models of upper central incisor. The results indicated the gradual behavior of functionally graded dental posts in terms of physical and mechanical properties. The finite element analysis revealed a more efficient equilibration to the oral environment after removing the thermal stress in functionally graded dental post compared to the homogeneous counterparts. Therefore, the functionally graded structures could reduce the stress/strain concentrations and interfacial stresses in root canal and minimize the likelihood of root fracture.

引用

页码：700 / 709

页数：10

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