3-DIMENSIONAL FINITE-ELEMENT ANALYSIS OF THE EFFECTS OF POSTS ON STRESS-DISTRIBUTION IN DENTIN

被引：89

作者：

HO, MH

LEE, SY

CHEN, HH

LEE, MC

机构：

[1] NATL YANG MING MED COLL,INST BIOMED ENGN,TAIPEI 11221,TAIWAN

[2] NATL YANG MING MED COLL,SCH DENT,TAIPEI 11221,TAIWAN

来源：

JOURNAL OF PROSTHETIC DENTISTRY | 1994年 / 72卷 / 04期

关键词：

D O I：

10.1016/0022-3913(94)90555-X

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

A finite element analysis was conducted to study the influence of posts on dentinal stress in pulpless teeth. Three-dimensional models of an intact Chinese maxillary central incisor with and without post restoration were analyzed. When the tooth was subjected to masticatory and traumatic loads, stress distributions in dentin were similar whether or not the post was present. Maximal dentinal stresses were reduced by only 7% to 10% and 10% to 14.5%, respectively, with gold alloy and stainless steel posts. Thus the reinforcement effects from posts appeared limited in pulpless incisors.

引用

页码：367 / 372

页数：6

共 18 条

[1]

CADDELL RM, 1980, DEFORMATION FRACTURE, P69

[2]

EISSMANN HF, 1987, PATHWAYS PULP, P640

[3] PHOTOELASTIC AND FINITE-ELEMENT STRESS ANALYSIS OF A RESTORED AXISYMMETRIC FIRST MOLAR [J].