Setting Stress in Composite Resin in Relation to Configuration of the Restoration

Overview

Journal J Dent Res

Specialty Dentistry

Date 1987 Nov 1

PMID 10872397

Citations 92

Authors

A J Feilzer

A J de Gee

C L Davidson

Affiliations

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Abstract

The setting stress in composite resins was studied as a function of restoration shape. The shape is described by the configuration factor, C, the ratio of the restoration's bonded to unbonded (free) surfaces. In an experimental set-up, the shape of the restoration was simulated by cylindrical forms of various dimensions. The shrinkage stress was measured continuously. It was shown that in most of the clinically relevant cavity configurations, the stress-relieving flow is not sufficient to preserve adhesion to dentin by dentin-bonding agents.

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