Fracture resistance and failure modes of CEREC endo-crowns and conventional post and core-supported CEREC crowns
نویسندگان
چکیده
منابع مشابه
Fracture resistance of implant- supported monolithic crowns cemented to zirconia hybrid-abutments: zirconia-based crowns vs. lithium disilicate crowns
PURPOSE The aim of this in vitro study was to investigate the fracture resistance under chewing simulation of implant-supported posterior restorations (crowns cemented to hybrid-abutments) made of different all-ceramic materials. MATERIALS AND METHODS Monolithic zirconia (MZr) and monolithic lithium disilicate (MLD) crowns for mandibular first molar were fabricated using computer-aided design...
متن کاملA comparison of the fracture resistances of endodontically treated mandibular premolars restored with endocrowns and glass fiber post-core retained conventional crowns
PURPOSE This in-vitro study aimed to evaluate the fracture resistances and failure modes of endodontically treated mandibular premolars restored with endocrowns and conventional post-core retained crowns. MATERIALS AND METHODS Thirty mandibular premolars were assigned into three groups (n=10): GI, intact teeth; GE, teeth with endocrowns; GC, teeth with conventional post-core supported crowns....
متن کاملPost-fatigue fracture resistance of metal core crowns: press-on metal ceramic versus a conventional veneering system
BACKGROUND The aim of this in vitro study was to compare the mechanical failure behavior and to analyze fracture characteristics of metal ceramic crowns with two veneering systems - press-on metal (PoM) ceramic versus a conventional veneering system - subjected to static compressive loading. MATERIAL AND METHODS Forty-six crowns were constructed and divided into two groups according to porcel...
متن کاملAvoiding and managing the failure of conventional crowns and bridges.
UNLABELLED The replacement of crowns and bridges is a common procedure for many dental practitioners. When correctly planned and executed, fixed prostheses will provide predictable function, aesthetics and value for money. However, when done poorly, they are more likely to fail prematurely and lead to irreversible damage to the teeth and supporting structures beneath. Sound diagnosis, assessmen...
متن کاملComparison of fracture strength of endocrowns and glass fiber post-retained conventional crowns.
The aim of this in vitro study was to compare the fracture strength of full ceramic crowns using two techniques-indirect conventional crowns retained by glass fiber posts, and endocrowns with an "anchorage" in the pulp chamber-and analyze the failure mode. For this purpose, 20 healthy mandibular molars were divided into two groups (n=10): GroupGC contained teeth with indirect conventional crown...
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ژورنال
عنوان ژورنال: Journal of Dental Sciences
سال: 2009
ISSN: 1991-7902
DOI: 10.1016/s1991-7902(09)60016-7