![]() ![]() The data were statistically analysed with the Mann-Whitney U test, the Fishers exact test (alpha = 0.05) and the error rates method. Enamel cracks were documented under a reflective-light microscope. Marginal integrity was assessed by evaluating dye penetration after thermal cycling and mechanical loading. The specimens were exposed to thermocycling and central mechanical loading. Ceramic restorations (Vita Mark II, Cerec3 System) were adhesively luted with Excite/Variolink II. Non-functional cusps were adjusted to 1.0-mm wall thickness and 1.0-mm wall thickness with horizontal reduction of about 2.0 mm. CI and PCC preparations were performed on extracted human molars. The aim of this in vitro study was to investigate the effect of cusp coverage of thin non-functional cusps on marginal integrity and enamel crack formation. No information is available to date about cusp design of thin (1.0 mm) non-functional cusps and its influence upon (1) marginal integrity of ceramic inlays (CI) and partial ceramic crowns (PCC) and (2) crack formation of dental tissues. Krifka, Stephanie Stangl, Martin Wiesbauer, Sarah Hiller, Karl-Anton Schmalz, Gottfried Federlin, Marianne Influence of different cusp coverage methods for the extension of ceramic inlays on marginal integrity and enamel crack formation in vitro. ![]()
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