نتایج جستجو برای: implant abutment

تعداد نتایج: 54954  

2011
Fabio C. Lorenzoni Paulo G. Coelho Gerson Bonfante Ricardo M. Carvalho Nelson R. F. A. Silva Marcelo Suzuki Thelma Lopes Silva Estevam A. Bonfante

To evaluate the sealing capability of external hexagon implant systems and assess the marginal fit, two groups (n = 10 each) were employed: SIN (Sistema de Implantes Nacional, Brazil) and Osseotite, (Biomet 3i, USA). Sealing capability was determined by placing 0.7 μL of 1% acid-red solution in the implant wells before the torque of their respective abutments. Specimens were then placed into 2....

Journal: :Journal of periodontology 2007
Hideyuki Kawashima Shuichi Sato Mamoru Kishida Hiroaki Yagi Kazuma Matsumoto Koichi Ito

BACKGROUND Dental implants require regular maintenance. It is crucial that the instrument used for maintenance be able to remove plaque and calculus from the implant surface effectively and efficiently, while causing minimal damage to its circumference. Some ultrasonic scalers may be useful for implant maintenance; however, no clinical study has examined this. This study evaluated the treatment...

2018
Wolfram Wiest Alexander Rack Simon Zabler Alex Schaer Michael Swain Katja Nelson

State-of-the art, two-piece dental implants made from titanium alloys exhibit a complex micromechanical behavior under dynamical load. Its understanding, especially the formation of microgaps, is of crucial importance in order to predict and improve the long-term performance of such implants. Microgap formation in a loaded dental implant with a conical implant-abutment connection can be studied...

Journal: :The Journal of prosthetic dentistry 2013
Chandur Wadhwani Kwok-Hung Chung

aAffiliate Faculty, Department of Restorative Dentistry, University of Washington; Private practice, Bellevue, Wash. bProfessor, Department of Restorative Dentistry, University of Washington. (J Prosthet Dent 2013;109:272-274) 1 Plate and guide rod engage abutment screw head on cast, with plate lowered and oriented to buccal of adjacent teeth. Cement-retained implant restorations have been repo...

2017
Tsutomu Sugiura Kazuhiko Yamamoto Satoshi Horita Kazuhiro Murakami Sadami Tsutsumi Tadaaki Kirita

PURPOSE The purpose of this study was to investigate the effects of implant tilting and the loading direction on the displacement and micromotion (relative displacement between the implant and bone) of immediately loaded implants by in vitro experiments and finite element analysis (FEA). METHODS Six artificial bone blocks were prepared. Six screw-type implants with a length of 10 mm and diame...

Journal: :Bio-medical materials and engineering 2014
Dandan Xia Hong Lin Shenpo Yuan Wei Bai Gang Zheng

Implant-abutment assemblies are usually subject to long-term cyclic loading. To evaluate the dynamic fatigue performance of implant-abutment assemblies with different tightening torque values, thirty implant-abutment assemblies (Zimmer Dental, Carlsbad, CA, USA) were randomly assigned to three tightening groups (24 Ncm; 30 Ncm; 36 Ncm), each consisted of 10 implants. Five specimens from each gr...

2015
Hye Won Shim Byoung-Eun Yang

PURPOSE To evaluate the cumulative survival rate (CSR) and mechanical complications of single-tooth Ankylos® implants. MATERIALS AND METHODS This was a retrospective clinical study that analyzed 450 single Ankylos® implants installed in 275 patients between December 2005 and December 2012. The main outcomes were survival results CSR and implant failure) and mechanical complications (screw loo...

Journal: :The International journal of oral & maxillofacial implants 2012
Christian R Leutert Bogna Stawarczyk Thomas C Truninger Christoph H F Hämmerle Irena Sailer

PURPOSE The aim of this study was to examine the bending moments and fracture patterns of different zirconia abutments with internal implant-abutment connections after static loading and to compare their bending moments to those of internally connected titanium abutments. MATERIALS AND METHODS Three types of customized zirconia abutments (Straumann CARES abutments/Straumann BL implants [T1], ...

2017
Se-Young Moon Young-Jun Lim Myung-Joo Kim Ho-Beom Kwon

PURPOSE The purpose of this study was to analyze the influence of the platform switching concept on an implant system and peri-implant bone using three-dimensional finite element analysis. MATERIALS AND METHODS Two three-dimensional finite element models for wide platform and platform switching were created. In the wide platform model, a wide platform abutment was connected to a wide platform...

2015
Hasan Sarfaraz Anoopa Paulose K. Kamalakanth Shenoy Akhter Hussain

AIMS The aim of the study was to evaluate the stress distribution pattern in the implant and the surrounding bone for a passive and a friction fit implant abutment interface and to analyze the influence of occlusal table dimension on the stress generated. MATERIALS AND METHODS CAD models of two different types of implant abutment connections, the passive fit or the slip-fit represented by the...

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