title: Internal and marginal adaptation of pressable and computer-aided design/computer-assisted manufacture onlay restorations.
abstract: The aim of this research was to evaluate internal and marginal adaptation of lithium disilicate partial crowns fabricated using IPS e.max Press and IPS e.max CAD systems. Forty maxillary first molars were divided into two groups. The margins were located above the cementoenamel junction mesially and below it distally. The adaptation of the restoration was evaluated by means of the silicone replica technique. The lowest marginal discrepancy was measured between the preparation margin on the enamel and the IPS e.max Press specimens; the highest discrepancy was observed on the occlusal surface of the IPS e.max CAD specimens. Both systems tested demonstrated acceptable marginal discrepancies in vitro.
authors.affiliation: Department of Prosthetic Dentistry, University of Marmara, Istanbul, Turkey. drburcinakoglu@hotmail.com
authors.forename: Burcin Akoglu
authors.initials: BA
authors.lastname: Vanlioglu
authors.forename: Buket
authors.initials: B
authors.lastname: Evren
authors.forename: Coskun
authors.initials: C
authors.lastname: Yildiz
authors.forename: Altay
authors.initials: A
authors.lastname: Uludamar
authors.forename: Yasemin Kulak
authors.initials: YK
authors.lastname: Ozkan
mesh_terms: D017076:Computer-Aided Design; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D006801:Humans; D007284:Inlays; D008963:Molar
chemical_list: C493120:lithia disilicate; D003776:Dental Porcelain