Correlation between fracture properties and clinical performance of composite resins in Class IV cavities
作者:
Martin J. Tyas,
期刊:
Australian Dental Journal
(WILEY Available online 1990)
卷期:
Volume 35,
issue 1
页码: 46-49
ISSN:0045-0421
年代: 1990
DOI:10.1111/j.1834-7819.1990.tb03027.x
出版商: Blackwell Publishing Ltd
关键词: Clinical performance;composite resins;fracture properties
数据来源: WILEY
摘要:
Abstract—One hundred and two Class IV cavities were restored randomly with four composite resins. The restorations were assessed at six months, one year, two years and three years for surface chipping, bulk fracture and incisal wear. The data were correlated with various mechanical properties of the materials. A significant correlation was found between surface chipping/bulk fracture and fracture toughness (P = 0.002), elastic modulus (P = 0.006) and tensile strength (P = 0.045). There was a trend towards an association between incisal wear and both elastic modulus and inherent flaw size. Fracture toughness may be a useful indicator of the clinical performance of composites in Class IV cavitie
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