Results 21 to 30 of about 261,841 (285)

The Fracture Resistance of Additively Manufactured Monolithic Zirconia vs. Bi-Layered Alumina Toughened Zirconia Crowns When Cemented to Zirconia Abutments. Evaluating the Potential of 3D Printing of Ceramic Crowns: An In Vitro Study

Dentistry Journal, 2021
(1) Background: This study compared the fracture resistance of additively manufactured monolithic zirconia and bi-layered alumina toughened zirconia crowns on implants.
Amirali Zandinejad, Marta Revilla-León, Mohammad Mujtaba Methani, Leila Nasiry Khanlar, Dean Morton   +4 more
doaj   +1 more source

Finite element analysis to assess stress and deformation in bone with glass fiber-reinforced-poly-ether-ether-ketone, zirconia, and titanium implants

Tzu Chi Medical Journal, 2023
Objectives: Recently, zirconia ceramic and glass or carbon fiber-reinforced poly-ether-ether-ketone (PEEK) composites have been introduced as newer implant biomaterials.
Syeda Amtul Haseeb, Anju S Kumar, M P Chaitra, K C Vinaya, Soumya Shivananda Gudal, Fathima Parveen Rahmam, Prashant Babaji   +6 more
doaj   +1 more source

The application of niobium and tantalum oxides for implant surface passivation. [PDF]

, 2007
Despite the advantages of ceramics, with their high corrosion stability in vivo, most medical implant constructions are still made from metals [1]. To increase the corrosion stability of metals, different coatings are applied to the implant surfaces,
Lavrynenko, S, Mamalis, A, Starikov, V. V., Mamalis, A. G., Lavrynenko, S. N., Ramsden, J, Starikova, S. L., Starikova, S, Ramsden, Jeremy J., Starikov, V   +9 more
core   +5 more sources

Biomechanical evaluation of anterior implants associated with titanium and zirconia abutments and monotype zirconia implants

Journal of Prosthodontic Research, 2021
The present in silico study evaluated the behavior of titanium dental implants associated with abutments in zirconia and monotype zirconia implant using finite element analysis (FEA).A partial image of the anterior region of the maxilla was obtained by computed tomography. Three models of finite element were made using 3D modeling software (SolidWorks):
Brandão de Holanda, Kelynne Alcântara, Armini Caldas, Ricardo, Amaral, Marina, da Silva Concilio, Lais Regiane, Pino Vitti, Rafael   +4 more
openaire   +3 more sources

Effect of prosthetic design and restorative material on the stress distribution of implant-supported 3-unit fixed partial dentures: 3D-FEA

Brazilian Dental Science, 2022
Objective: Evaluate the effect of Implant prosthetic designs and restorative material on the stress concentration of 3-unit implant-supported restoration with two restorative materials.
Mohamed Abdel Ahmed, Amina Mohammad Hamdy, Ghada Abdel Fattah, Ahmed Khaled Abo Elfadl   +3 more
doaj   +1 more source

Survival Rate and Deformation of External Hexagon Implants with One-Piece Zirconia Crowns

Metals, 2021
This study aimed to evaluate the survival rates of several external hexagon implants directly connected to zirconia crowns after thermomechanical fatigue. The deformation of the hexagons and the integrity of zirconia crowns were also evaluated.
Marco Antonio Bottino, Flávio Rosa de Oliveira, Clarice Ferreira Sabino, José Cícero Dinato, Laís Regiane Silva-Concílio, João Paulo Mendes Tribst   +5 more
doaj   +1 more source

Fatigue properties of hollow zirconia implants

Dental Materials Journal, 2021
The objective of this study was to clarify the fatigue behavior of hollow yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) specimens assuming its use for two-piece implants. The fatigue properties of a solid specimen (which simulated a one-piece implant) and 3 types of hollow specimens (which simulated two-piece implants) were evaluated ...
IIJIMA, Noriko, HOMMA, Shinya, NAKANO, Ryotaro, HAYASHI, Shota, HIRANO, Tomoki, IIJIMA, Toshihiko, YAJIMA, Yasutomo   +6 more
openaire   +3 more sources

Inflammatory Gene Profile and Particle Presence in Peri-Implant Mucosa: a Pilot Study on 9 Patients

eJournal of Oral Maxillofacial Research, 2023
Objectives: The purpose of this pilot study is to compare gene expression in mucosa around dental implants with zirconia abutment to titanium and investigate presence of particles in mucosa samples and on implant heads.
Julia Olander, Sargon Barkarmo, Petra Hammarström Johansson, Ann Wennerberg, Victoria Franke Stenport   +4 more
doaj   +1 more source

Scanning Electron Microscopy Analysis and Energy Dispersion X-ray Microanalysis to Evaluate the Effects of Decontamination Chemicals and Heat Sterilization on Implant Surgical Drills: Zirconia vs. Steel

Applied Sciences, 2019
Background: Drills are an indispensable tool for dental implant surgery. Today, there are ceramic zirconium dioxide and metal alloy drills available. Osteotomy drills are critical instruments since they come in contact with blood and saliva. Furthermore,
Antonio Scarano, Sammy Noumbissi, Saurabh Gupta, Francesco Inchingolo, Pierbiagio Stilla, Felice Lorusso   +5 more
doaj   +1 more source

Osseointegration of zirconia implants compared with titanium : an in vivo study [PDF]

, 2008
Background Titanium and titanium alloys are widely used for fabrication of dental implants. Since the material composition and the surface topography of a biomaterial play a fundamental role in osseointegration, various chemical and physical surface ...
Ulrich Meyer, Rita Depprich, Sirichai Kiattavorncharoen, Michelle Ommerborn, Jörg Handschel, Kübler, Norbert, Zipprich, Holger, Meyer, Ulrich, Hans-Christoph Lauer, Hans-Peter Wiesmann, Holger Zipprich, Handschel, Jörg, Christian Naujoks, Norbert R Kübler, Depprich, Rita, Ommerborn, Michelle, Naujoks, Christian, Kiattavorncharoen, Sirichai, Lauer, Hans-Christoph (Prof. Dr.), Wiesmann, Hans-Peter, Lauer Hans-Christoph, Depprich Rita, Kübler Norbert R, Naujoks Christian, Handschel Jörg, Zipprich Holger, Meyer Ulrich, Kiattavorncharoen Sirichai, Ommerborn Michelle, Wiesmann Hans-Peter   +29 more
core   +2 more sources