Influence of variations in ceramic thickness and bonding substrate on the fracture resistance of lithium disilicate restorations
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Date
2017
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of the Western Cape
Abstract
Restorative dentistry aims to replace lost or damaged tooth structure with
durable and life-like alternatives. To accommodate the inherent limitations and weakness of
the restorative materials, preparation techniques often require the sacrifice of healthy tooth
structure to create enough restorative space. This can lead to weakening of the remaining
tooth structure, with subsequent damage or catastrophic failure. When using indirect
restoratives, the development of adhesive luting agents (adhesive cements) and stronger allporcelain
restorations (lithium disilicate) has contributed to the development of “minimally
invasive” preparation techniques and concepts such as cavity design optimization (CDO) and
bio-substitution. With these techniques, resin materials are combined with ceramic
restoratives in an attempt to not only produce strong restorations, but also increase the
longevity of the remaining tooth. The clinician needs to therefore find the ideal preparation
design that combine such materials to produces a clinically performing restoration while
increasing the strength and longevity of the underlying tooth.
Description
Magister Scientiae Dentium - MSc(Dent)
Keywords
Adhesives, Resin, Thickness, Longevity, Repairability