Fracture Toughness of Human Enamel
- 1 April 1981
- journal article
- research article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 60 (4) , 820-827
- https://doi.org/10.1177/00220345810600040901
Abstract
A microindentation technique was employed to estimate the fracture toughness of human enamel. A pattern of increasing fracture toughness values existed from incisal to cervical in incisor enamel. Statistical analysis indicated that the molar enamel was more brittle than either the canine or incisor enamel. It was observed that the cracks emanating from the comers of an indentation propagated preferentially, with the weakest path of fracture usually extending along the cervical-incisal axis.This publication has 7 references indexed in Scilit:
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