نتایج جستجو برای: ceramic crowns

تعداد نتایج: 27230  

Journal: :Modern Approaches in Dentistry and Oral Health Care 2020

2018
Khalid M. Abdelaziz Cinderella K. Keshk Abdulkhaliq Alshadidi Salman Mafraq David F. Murchison

Aims and Objectives To evaluate the influence of indirect chair-side polymerization of resin composite cores on the fracture resistance of overlaying IPS e.max Press crowns. Materials and Methods Root canals of 60 extracted premolars were prepared to receive #2 fiber posts after the crowns were sectioned 2 mm above the cervical line. In Groups 1-3 (n = 10 each), posts were luted to the prepar...

2015
Nicola Mobilio Alberto Fasiol Francesco Mollica Santo Catapano

No studies are available that evaluate the retention of disilicate crowns according to different cementation procedures. The purpose of this study was to measure the retention of lithium disilicate crowns cemented using two different cementation systems. Twenty extracted mandibular premolars were prepared. Anatomic crowns were waxed and hot pressed using lithium disilicate ceramic. Teeth were d...

2016
Tomofumi Sawada Sebastian Spintzyk Christine Schille Ernst Schweizer Lutz Scheideler Jürgen Geis-Gerstorfer

The aim of this study was to evaluate the fracture load and failure mode of all-ceramic crowns with different ceria-stabilized tetragonal zirconia/alumina nanocomposite (Ce-TZP/A) framework designs. Four frameworks (anatomical shape: AS, with a buccal or lingual supporting structure: BS and LS, or buccal and lingual supporting structures: BLS) were fabricated. All frameworks were veneered with ...

Journal: :American journal of dentistry 2010
Sven Reich Beate Brungsberg Hubertus Teschner Roland Frankenberger

PURPOSE The null hypothesis was tested: There is no difference between two all-ceramic crown systems, the Cerec method (CHAIR) and the IPS Empress method (LAB), with respect to occlusal precision and time expenditure for the dentist. METHODS 20 casts representing clinical situations were mounted in semi-adjustable articulators to serve as simulation models. The left lower first molars were pr...

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