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Analysis of failed commercially pure titanium dental implants: A scanning electron microscopy and energy-dispersive spectrometer X-ray study
(Amer Acad Periodontology, 2005-07-01)
Background: the failure of osseointegration in oral rehabilitation has gained importance in current literature and in clinical practice. The integration of titanium dental implants in alveolar bone has been partly ascribed ...
Implantation failures: Success of assisted hatching with quarter-laser zona thinning
(2005-02-01)
Implantation failure after IVF is one of the factors associated with a reduced chance of pregnancy for some patients. Assisted hatching methodologies are designed to facilitate the embryo's escape from the zona pellucida, ...
The effect of CO 2 laser irradiation on failed implant surfaces
(2004-12-01)
The aim of this investigation was to evaluate the cleaning effect of CO 2 on surface topography and composition of failed dental implant surfaces. Ten failed dental implants were retrieved from nine patients (mean age, ...
Interleukin-2 and interleukin-6 gene promoter polymorphisms, and early failure of dental implants
(2005-12-01)
Single nucleotide polymorphisms in the promoter region of the human interleukin (IL)-2 (T-330G) and IL-6 (G-174C) genes have modified the transcriptional activity of these cytokines and are associated with several diseases. ...
Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes
(2013-02-01)
Objectives: This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that ...
Preload Evaluation of Different Screws in External Hexagon Joint
(Lippincott Williams & Wilkins, 2012-02-01)
Purpose: This study compared the maintenance of tightening torque in different retention screw types of implant-supported crowns.Materials and Methods: Twelve metallic crowns in UCLA abutments cast with cobalt-chromium ...
Prosthetic Platforms in Implant Dentistry
(Lippincott Williams & Wilkins, 2011-11-01)
The use of implant-supported prosthesis to replace missing teeth became a predictable treatment. Although high success rate has been reported, implant treatment is suitable to complications, failures, and limitations such ...
Reliability and failure modes of internal conical dental implant connections
(2013-02-01)
Objective: Biological and mechanical implant-abutment connection complications and failures are still present in clinical practice, frequently compromising oral function. The purpose of this study was to evaluate the ...