Marginal Fit of Heat-pressed vs CAD/CAM Processed All-ceramic Onlays Using a Milling Unit Prototype
نویسندگان
چکیده
منابع مشابه
Marginal fit of leucite-glass pressable ceramic restorations and ceramic-pressed-to-metal restorations.
STATEMENT OF PROBLEM Fabricating a feldspathic porcelain margin on a metal-ceramic restoration with a clinically acceptable marginal fit has proven to be a technique-sensitive procedure. Pressable ceramics are advocated to solve this problem. PURPOSE The purpose of this in vitro study was to compare the marginal adaptation of a pressable ceramic system when used with both all-ceramic and meta...
متن کاملComparison of Marginal Fit between Collarless Metal Ceramic and two all Ceramic Restorations
Marginal adaptation of the crown is a crucial factor in determining its clinical acceptability. Crown fit as judged by marginal seal influences the longevity of the cast restorations to a great extent. Metal ceramic restorations have been implicated for the discoloration in area of labio-gingival margin. Attempts to rectify this, by altering the design of metal frame works as eliminating the la...
متن کاملMicro-ct Evaluation of the Marginal Fit of Cad/cam All Ceramic Crowns
Christian Brenes: CAD/CAM MATERIALS AND TECHNOLOGIES FOR ALL CERAMIC RESTORATIONS: A REVIEW OF THE LITERATURE (Under the direction of Ibrahim Duqum) Objectives: Evaluate the marginal fit of CAD/CAM all ceramic crowns made from lithium disilicate and zirconia using two different fabrication protocols (model and model-less). METHODS: Forty anterior all ceramic restorations (20 lithium disilicate,...
متن کاملInfluence of marginal fit and cement types on microleakage of all-ceramic crown systems.
The purpose of this study was to evaluate the effects of both marginal fit and cementing with different luting agents on the microleakage of all-ceramic crown systems. Thirty-six extracted upper central incisors were prepared for full-coverage crowns and were divided into three groups. Group 1: CAD/CAM-fabricated ZrO2, Group 2: Heat-pressed lithium-disilicate, and Group 3: Cast Cr-Co copings as...
متن کاملEvaluation of marginal fit of two all-ceramic copings with two finish lines
OBJECTIVES This in-vitro study investigated the marginal fit of two all-ceramic copings with 2 finish line designs. METHODS Forty machined stainless steel molar die models with two different margin designs (chamfer and rounded shoulder) were prepared. A total of 40 standardized copings were fabricated and divided into 4 groups (n=10 for each finish line-coping material). Coping materials test...
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ژورنال
عنوان ژورنال: Operative Dentistry
سال: 2008
ISSN: 1559-2863,0361-7734
DOI: 10.2341/07-162