FAILURE CHARACTERISTICS OF ENDODONTICALLY TREATED PREMOLARS RESTORED WITH A POST AND DIRECT RESTORATIVE MATERIAL

被引：10

作者：

HUYSMANS, MCDNJM

PETERS, MCRB

PLASSCHAERT, AJM

VANDERVARST, PGT

机构：

[1] TRIKON Institute for Dental Clinical Research, Dental School, University of Nijmegen, Nijmegen

来源：

INTERNATIONAL ENDODONTIC JOURNAL | 1992年 / 25卷 / 03期

关键词：

AMALGAM; CERMET CEMENT; COMPOSITE RESIN; CORE BUILDUP; POST-RETAINED RESTORATION;

D O I：

10.1111/j.1365-2591.1992.tb00774.x

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Ninety-one extracted maxillary premolar teeth were restored with a prefabricated post and amalgam, composite resin or glass-cermet core. Each group was again divided into three groups of 9-13 teeth to be subjected to an increasing load in one of three standardized directions (10, 45 and 90-degrees to the long axis of the tooth). Failure load and characteristics of failure were recorded. The glass-cermet-restored teeth had a lower strength than the other groups for every load direction (Student's t-test: P < 0.01). Amalgam and composite resin groups showed a significant difference only for the 10-degrees loading condition (Student's t-test: P < 0.02). Teeth restored with amalgam cores displayed a higher mean failure load, in combination with a 46% occurrence of root fracture.

引用

页码：121 / 129

页数：9

共 37 条

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