Results 31 to 40 of about 70,874 (162)

Surface and fracture properties of lithium disilicate and resin-Matrix CAD/CAM ceramics

Saudi Dental Journal
Purpose To characterize hardness and fracture toughness of ceramic CAD/CAM materials with different composition (IPS e.max CAD and MAZIC Duro) and thicknesses (1mm and 1.5mm). Materials and methods Blocks of CAD/CAM esthetic restorative materials (IPS e.
Ayat G. Montaser, Sara Tamimi, Shimaa A. El Saeed, Ahmed D. Abogabal, Ahmed Y. Allam, Suad M. Hassan, Sally N. El Adawy, Amany H. Elzoka   +7 more
doaj   +1 more source

Effect of air-particle abrasion and methacryloyloxydecyl phosphate primer on fracture load of thin zirconia crowns: an in vitro study

Frontiers in Dental Medicine
The study aimed to investigate the effects of airborne-particle abrasion (APA) and 10-methacryloxydecyl dihydrogen phosphate (10-MDP primer) surface treatments on the fracture load of thin zirconia crowns made from 3Y-TZP and 5Y-PSZ zirconia. Eighty full-
Ruwaida Z. Alshali, Mohammed A. Alqahtani, Basem N. Alturki, Loay I. Algizani, Abdullah O. Batarfi, Zuhair K. Alshamrani, Razan M. Faden, Dalea M. Bukhary, Mosa M. Altassan   +8 more
doaj   +1 more source

Comparative study of all-ceramic crowns obtained from conventional and digital impressions: clinical findings

, 2019
Objective: To compare clinical aspects of all-ceramic crowns fabricated from conventional and digital impressions. Methods: Thirty patients with 30 posterior teeth with the need of a crown restoration were selected.
Berrendero Dávila, Santiago, Pradíes Ramiro, Guillermo Jesús, Valverde Espejo, Arelhys Rosa, Salido Rodríguez-Manzaneque, María Paz, Ferreiroa Navarro, Alberto   +4 more
core   +1 more source

Fracture strength of monolithic all-ceramic crowns made of high translucent yttrium oxide-stabilized zirconium dioxide compared to porcelain-veneered crowns and lithium disilicate crowns

, 2014
Objective. The aim of the study was to provide data on the fracture strength of monolithic high translucent Y-TZP crowns and porcelain-veneered high translucent Y-TZP crown cores and to compare that data with the fracture strength of porcelain-veneered Y-
Kmet, Gratiela,, Johansson, Camilla,, Rivera, Johnny,, Larsson, Christel,, Vult von Steyern, Per,   +4 more
core   +2 more sources

Effect of three veneering techniques on fracture resistance and marginal adaptation of zirconia-based crowns

Caspian journal of dental research, 2020
Introduction: The aim of this study was to evaluate the fracture resistance (FR) of zirconia-based crowns veneered with different methods and to assess marginal gap before and after veneering.
Farshid Amiri Daneshvar, Abdolhamiid Alhavaz, Ghazaleh Ahmadizenouz, Ali Bijani   +3 more
doaj  

Stratum change of Drapetisca socialis re-examined (Araneae, Linyphiidae) [PDF]

, 2013
It has been widely accepted that the biology of Drapetisca socialis includes a pronounced stratum change of this species from the forest soil into the crowns of beech trees. On old pine trees, however, D.
Simon, Ulrich
core  

Fracture resistance of different primary anterior esthetic crowns

, 2017
Purpose: Investigate and compare fracture resistance of four commercially available esthetic crowns. Methods: Sixty-four anterior crowns were used: NuSmile Primary crowns (NuSmile, Houston, Tex.
Thamer A. Alkhadra, Manar Zaki Al Shobber   +1 more
core   +1 more source

Survival of Single-Unit Porcelain-Fused-to-Metal (PFM) and Metal Crowns Placed by Students at an Australian University Dental Clinic over a Five-Year Period

, 2021
The aim of this retrospective study was to determine the survival rate of single-unit porcelain-fused-to-metal (PFM) and metal crowns placed by dental students at an Australian university undergraduate dental clinic over a five-year period. Complications
Nick Del Din, Lamb, Jessica, Chris Carey, Menaka Abuzar, Robb, Nigel D, Del Din, Nick, Abuzar, Menaka, Hazel Wright, Wright, Hazel, Nigel D. Robb, Carey, Chris, Jessica Lamb   +11 more
core   +1 more source

Trueness of crowns fabricated by using additively and subtractively manufactured resin-based CAD-CAM materials. [PDF]

, 2022
STATEMENT OF PROBLEM Advancements in digital dental technologies have enabled the use of different resin-based materials that can be fabricated either additively or subtractively.
Schimmel, Martin, Çakmak, Gülce, Rusa, Ana Maria, Yilmaz, Burak, Donmez, Mustafa Borga, Kahveci, Çiğdem, Akay, Canan   +6 more
core   +2 more sources

Stereomicroscope-Based in Vitro Study Evaluating the Marginal and Internal Fit of PEEK and PEKK Crowns

Journal of Pharmacy and Bioallied Sciences
PurposeThe aim of the in vitro study was to compare the internal merge and marginal perfection of polyetheretherketone (PEEK) and polyetherketoneketone (PEKK) crowns under a stereomicroscope.
Chandramohan Giri, Soundar Joephin, Shankar Kamala, Missier Mary Sheloni, Hines Allen Jim   +4 more
doaj   +1 more source