Marginal Fit of All-Ceramic Crowns Before and After Cementation: An In Vitro Study

WOS: 000430071500002PubMed ID: 29641628The marginal integrity of all-ceramic crowns for anterior and posterior teeth were evaluated. A total of 60 ceramic crowns (In-Ceram Alumina, IPS e.max Press, and Lava) were fabricated for the epoxy resin maxillary first central incisor and first molar and divided into three groups (n = 20). The crowns were measured at the facial, lingual, mesial, and distal finish lines (52 points) before and after cementation using scanning electron microscopy. The results were analyzed using one-way analysis of variance, paired samples t test, and independent t test. The mean values of marginal gaps were within acceptable clinical limits before and after cementation. The values of the anterior crowns at the buccal finish line were higher than those at the proximal finish line areas (P .05). Marginal gaps of crowns at the anterior teeth were higher than at the posterior teeth for all groups.Scientific Research Coordination Agency of the Hacettepe University, Ankara, Turkey [012D6201006]This study was supported by a research project of the Scientific Research Coordination Agency of the Hacettepe University, Ankara, Turkey (Project no: 012D6201006). The authors reported no conflicts of interest related to this study