Sealing capability and marginal fit of titanium versus zirconia abutments with different connection designs
نویسندگان
چکیده
منابع مشابه
The Effect of Different Marginal Designs on the Fracture Resistance of Monolithic Zirconia Crowns
Abstract Background and Aim: One of the major problems of all ceramic restorations is their probable fracture against the occlusal force. The aim of the present in vitro study is to compare the effect of three marginal designs (shoulder, sloped shoulder, chamfer) on the fracture resistance of monolithic zirconia crowns. Materials and methods: In this in vitro study, three PEEK dies with cham...
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BACKGROUND Microleakage through the interface has been documented in implant systems with titanium (Ti) abutments. There is a current increase in the use of zirconia (Zi) abutments especially in esthetic zone in where higher risk of visible metal color through the peri-implant tissues exists. PURPOSE The aim of the present in vitro study is to evaluate the leakage at the implant fixture-abutm...
متن کاملEvaluation of gold-machined UCLA-type abutments and CAD/CAM titanium abutments with hexagonal external connection and with internal connection.
PURPOSE The purpose of this study was to assess the precision at the implant interface of gold-machined UCLA-type abutments and computer-assisted design and manufacture (CAD/CAM) titanium abutments with both external-hexagonal connection and internal-hexagonal connection. MATERIALS AND METHODS Fifteen gold-machined UCLA-type abutments with external-hexagonal connection, 15 gold-machined UCLA-...
متن کاملcomparison of marginal fit and fracture strength of a cad/cam zirconia crown with two preparation designs
objectives : the purpose of this in vitro study was to compare the marginal adaptation and fracture resistance of a zirconia-based all-ceramic restoration with two preparation designs. materials and methods: twenty-four mandibular premolars were randomly divided into two groups (n=12); the conventional group received a peripheral shoulder preparation and the modified group received a buccal sho...
متن کاملMarginal fit analysis of premachined and castable UCLA abutments.
This study evaluated the fit between implants and premachined and castable UCLA abutments. All plastic specimens were cast using the conventional technique in accordance with the manufacturer's instructions. Five specimens of each experimental group were measured for vertical and horizontal gaps by scanning electronic microscopy (Phillips XL 30 model, Holland). Gold UCLA (vertical gap: 2.15 mic...
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ژورنال
عنوان ژورنال: The Journal of Advanced Prosthodontics
سال: 2019
ISSN: 2005-7806,2005-7814
DOI: 10.4047/jap.2019.11.2.105