Can pulpal floor debonding be detected from occlusal surface displacement in composite restorations?

Citation data:

Dental materials : official publication of the Academy of Dental Materials, ISSN: 1879-0097, Vol: 34, Issue: 1, Page: 161-169

Publication Year:
2018

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PMID:
29199007
DOI:
10.1016/j.dental.2017.11.019
Author(s):
Novaes, João Batista; Talma, Elissa; Las Casas, Estevam Barbosa; Aregawi, Wondwosen; Kolstad, Lauren Wickham; Mantell, Sue; Wang, Yan; Fok, Alex
Publisher(s):
Elsevier BV
Tags:
Materials Science; Dentistry; Engineering
article description
Polymerization shrinkage of resin composite restorations can cause debonding at the tooth-restoration interface. Theory based on the mechanics of materials predicts that debonding at the pulpal floor would half the shrinkage displacement at the occlusal surface. The aim of this study is to test this theory and to examine the possibility of detecting subsurface resin composite restoration debonding by measuring the superficial shrinkage displacements.