![]() ![]() ![]() The level of significance was set at P=0.05. Differences in means were compared using two-way ANOVA and a post-hoc test (Tukey Test). The crowns were loaded before cementation by using an Instron machine to simulate the masticatory load applied during a trial. The groups differed in type of preparation (knife-edge (KE) or chamfer (CHA)) and spacing parameters: spacer (0 or 150μm), marginal adhesive gap (10 or 50 or 150μm) and margin thickness (0 or 300μm). Fifteen full crowns were manufactured for four groups using CEREC. The teeth were scanned and two Co-Cr alloy replicas were made. To evaluate the influence of the preparation design and spacing parameters on the risk of chipping of crowns made by CEREC Bluecam before cementation.Ī knife-edge preparation and a chamfer preparation were made on upper premolars. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |