Zobrazeno 1 - 10
of 2 661
pro vyhledávání: '"Tetragonal zirconia"'
Publikováno v:
BMC Oral Health, Vol 24, Iss 1, Pp 1-9 (2024)
Abstract Background Effects of the aging process on the flexural strength of Y-TZP and different Y-PSZ ceramics of different thicknesses were investigated. Methods 300 disc-shaped samples (12 mm diameter, 0.8 and 1.5 mm thicknesses) were made from 5
Externí odkaz:
https://doaj.org/article/4093759ec9b6411aa9e84d6aca1729a9
Publikováno v:
Journal of Advanced Ceramics, Vol 13, Iss 4, Pp 469-477 (2024)
The presence of high-density defects is rarely observed in bulk 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) ceramics obtained through conventional pressureless sintering. In the present work, fine-grained dense 147 nm 3Y-TZP cer
Externí odkaz:
https://doaj.org/article/973a106bbe494376bba8af1f697f7e9d
Akademický článek
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Publikováno v:
Frontiers in Dentistry, Vol 21 (2024)
Objectives: Porcelain chipping and delamination are among the shortcomings of all-ceramic restorations. This study aimed to assess the effect of laser irradiation and sandblasting on shear bond strength (SBS) of zirconia to veneering porcelain. Ma
Externí odkaz:
https://doaj.org/article/a6cc5a175abb418bbc5be63bf77fd6f5
Publikováno v:
Heliyon, Vol 10, Iss 12, Pp e32493- (2024)
This in vitro study was to evaluate the effect of different non-thermal atmospheric pressure plasma (NTP) on shear bond strength (SBS) between yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and self-adhesive resin cement. In this study, Th
Externí odkaz:
https://doaj.org/article/1a755a2b5639458882487681f657cd61
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 1222-1230 (2023)
The optical property of 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) is affected by various factors. This study aimed to evaluate the effects of phase fraction of zirconia polymorphs and grain size on the translucency of 3Y-TZP.
Externí odkaz:
https://doaj.org/article/7527b054f8614d3f84fbab7aa8bf5d34
The phase stability of t-ZrO2 realized by grain size at cryogenic temperature in ZrO2/TiO2 composite
Autor:
Huan Li, Weifeng Qian, Zhen Zhang, Shuang Wang, Yongnan Chen, Fengying Zhang, Zhimin Hou, Guangrui Gao, Qinyang Zhao, Haifei Zhan
Publikováno v:
Materials & Design, Vol 239, Iss , Pp 112741- (2024)
In this work, the trade-off between transformation toughening of ZrO2/TiO2 ceramic coatings and low temperature (293.15 K∼203.15 K) was achieved by adjusting the grain size of t-ZrO2 (dt-ZrO2). A negative correlation between dt-ZrO2 and phase trans
Externí odkaz:
https://doaj.org/article/0384353f86ef44b496b99be58913e259
Publikováno v:
The Journal of Indian Prosthodontic Society, Vol 23, Iss 1, Pp 57-64 (2023)
Aim: The purpose of the present study was to examine the optical properties, chemical composition, and grain size (GS) of monolithic zirconia (MZ) ceramic at different thicknesses sintered using different procedures after hydrothermal aging. Settings
Externí odkaz:
https://doaj.org/article/c59d0c83d96140da8c91a284cc434b44
Publikováno v:
Journal of Asian Ceramic Societies, Vol 11, Iss 1, Pp 130-137 (2023)
ABSTRACTGel casting technology and a two-stage sintering process were used to produce yttria-stabilized tetragonal zirconia (YTZP) ceramics with excellent mechanical properties. A carbonic acid-based polyelectrolyte dispersant was used as a dispersan
Externí odkaz:
https://doaj.org/article/c5bbc9aeb9dc4e3597b3285770387c01
Influence of abutment and connection type on implant-abutment connection rigidity: an in vitro study
Autor:
Teresa Almeida Mendes, Luís Miguel Vilhena, Jaime Portugal, João Caramês, Amílcar Lopes Ramalho, Luís Pires Lopes
Publikováno v:
Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, Vol 63, Iss 3, Pp 134-140 (2022)
Objectives: To evaluate the effects of the abutment material and the connection type on the implant-abutment connection rigidity. Methods: The study evaluated eighteen implants with three different types of connections: external-hexagon, tri-chann
Externí odkaz:
https://doaj.org/article/9d7cdf8af5114b54a9b14e1ea2bcf56e