نتایج جستجو برای: lithium disilicate

تعداد نتایج: 49869  

Journal: :Quintessence international 2015
Philipp Grohmann Andreas Bindl Christoph Hämmerle Albert Mehl Irena Sailer

OBJECTIVE The aim of this multicenter randomized controlled clinical trial was to test posterior zirconia-ceramic fixed dental prostheses (FDPs) veneered with a computer-aided design/computer- assisted manufacture (CAD/CAM) lithium disilicate veneering ceramic (CAD-on) and manually layered zirconia veneering ceramic with respect to survival of the FDPs, and technical and biologic outcomes. ME...

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2018
Shareen H Elshiyab Noor Nawafleh Andreas Öchsner Roy George

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...

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Journal: :Compendium of continuing education in dentistry 2010
Lee Culp Edward A McLaren

As dentistry continues to evolve, new technologies and materials are continually being offered to the dental profession. Throughout the years restorative trends and techniques have come and gone. Some material developments have transformed the face of esthetic dentistry, while other initial concepts have already phased out and disappeared. Today, all-ceramic restorations continue to grow in the...

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Journal: :Brazilian dental journal 2015
Tânia Mara da Silva Ana Carolina Rodrigues Danzi Salvia Rodrigo Furtado de Carvalho Eduardo Galera da Silva Clóvis Pagani

The aim of this study was to evaluate the effect of different polishing protocols on surface roughness and morphology of lithium disilicate ceramics (IPS e.max CAD). Fifty ceramic bars (2.0x3.0x2.5 mm) were produced and randomly divided into five groups (n=10), according to surface treatments: C: Control; Cer: Ceramaster (60 s); CW: cloth wheel with large-grit diamond (30 s) + cloth wheel with ...

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Journal: :Alexandria Dental Journal 2019

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Journal: :The Journal of prosthetic dentistry 2016
Nuno Marques Guilherme Kwok-Hung Chung Brian D Flinn Cheng Zheng Ariel J Raigrodski

STATEMENT OF PROBLEM Information is lacking about the fatigue resistance of computer-aided design and computer-aided manufacturing (CAD-CAM) tooth-colored implant custom abutment materials. PURPOSE The purpose of this in vitro study was to investigate the reliability of different types of CAD-CAM tooth-colored implant custom abutments. MATERIAL AND METHODS Zirconia (Lava Plus), lithium disi...

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2015
Han-Sung Joo Hong-So Yang Sang-Won Park Hyun-Seung Kim Kwi-Dug Yun Min-Kyung Ji Hyun-Pil Lim

PURPOSE This study evaluated the fracture load of customized zirconia abutments with titanium insert according to preparation depths, with or without 5-year artificial aging. MATERIALS AND METHODS Thirty-six identical lithium disilicate crowns (IPS e.max press) were fabricated to replace a maxillary right central incisor and cemented to the customized zirconia abutment with titanium insert on...

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Journal: :The Journal of prosthetic dentistry 2015
Paul de Kok Cornelis J Kleverlaan Niek de Jager Ruud Kuijs Albert J Feilzer

STATEMENT OF PROBLEM The fracture of implant-supported restorations, especially of the veneering layer, is a common problem in dentistry. Monolithic ceramic or resin restorations might help solve this problem. PURPOSE The purpose of this in vitro study was to obtain additional insight into the risk of fracture of implant-supported restorations. MATERIAL AND METHODS Identical crowns (n=10) o...

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Journal: :BMC Oral Health 2019

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Journal: :Journal of Dental Research 2011

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