Artigos científicos, teses e dissertações
Publicados nas melhores instituições de ensino

Dealing with dental implant failures

An implant-supported restoration offers a predictable treatment for tooth replacement. Reported success rates for dental implants are high. Nevertheless, failures that mandate immediate implant removal do occur. The consequences of implant removal jeopardize the clinician's effor...

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Numerical study of effect of elastomeric stress absorbers on stress reduction in bone-dental implant interface

Objective This paper focused on optimal stress distribution in the mandibular bone surrounding a dental implant and is devoted to the development of a modified Osteoplant® implant type in order to minimize stress concentration in the bone-implant interface. Material and Methods ...

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Risk factors for implant failure: a retrospective study in an educational institution using GEE analyses

Abstract This study aimed to evaluate dental implant outcomes and to identify risk factors associated with implant failure over 12 years via dental records of patients attending an educational institution. Dental records of 202 patients receiving 774 dental implants from 2002 to ...

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Risk factors associated with short dental implant success: a long-term retrospective evaluation of patients followed up for up to 9 years

Abstract: This multicenter study aimed to identify the different implant- and patient-related risk factors for long-term short dental implant success. Through a retrospective chart review of three centers, patient information regarding demographic variables, smoking habits, histo...

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Titanium dental implant surfaces

Osseointegration has been defined as "a direct structural and functional connection between ordered, living bone and the surface of a load-carrying implant". However, titanium and its alloys cannot directly bond to living bone after being implanted into the body. The osseointegra...

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Parafusos de pilar utilizados em implantes dentários / Pillar screws used in dental implants

Due to the surge and success of bone integrated implants, dental implants have been consolidated as an important rehabilitation technique within the general context of dentistry. Functional force, bio-mechanical compatibility and tension transfer to the neighboring tissues are am...

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Experimental study on penetration of dental implants into the maxillary sinus in different depths

The exposing of dental implant into the maxillary sinus combined with membrane perforation might increase risks of implant failure and sinus complications. Objective: The purpose of this study was to investigate the effects of the dental implant penetration into the maxillary s...

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Clinical setting influences physiological responses in dental implant patients

AIM: To evaluate changes in blood pressure and heart rate in patients undergoing dental implant procedures, considering the dental setting as the main variable. METHODS: Fifty-five patients who underwent dental implant surgery were evaluated. Thirty-seven were treated at a ...

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Análise da associação dos polimorfismos IL1B (C+3954T) e IL1RN (intron 2) com a perda de implantes dentais osseointegráveis

Dental implants have become an important therapeutical modality for tooth replacement. Although the high success rate showed in longitudinal studies, failures occur, even in patients who present appropriate clinical conditions. Together with the clusterization phenomenon, which i...

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Surface characterization of titanium Based dental implants

The study of dental implant surfaces is relevant in order to better understand the interaction of the titanium surface and the surrounding tissues. Clinical success is achieved not only because of implant material but also because of other properties as implant design, surface tr...

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Evaluation of Alveolar Bone on Dental Implant Treatment using Cone Beam Computed Tomography

Abstract Objective: To observe the outcomes of dental implant treatment based on the evaluation of bone conditions using Cone Beam Computed Tomography (CBCT). Material and Methods: A total of 31 dental implants were collected for the present study. Subsequently, mesial and dist...

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Análise fotoelástica da distribuição das tensões ocorridas no tecido ósseo, ao redor de cinco diferentes desenhos de implante, quando submetidos ao carregamento axial / Photoelastic analysis of stress distributions occurring around the bone tissue of five different designs of implants when subjected to axial loading

The design of the implant is a highly relevant factor in the distribution of stresses generated in the peri-implant tissues. The proposition of this study was to evaluate the stress distribution of five different designs of implants, when subjected to axial loads uniformly distri...

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Analise histologica e histomorfometrica do reparo osseo perimplantar em cães submetidos a instalação de implantes endosseos com um modelo de carga precoce em dois diferentes desenhos de implantes / Histological and histomorphometric analysis of perimplant osseous repair in dogs submitted to endosseous implant installation with early load model in two different implant design

Several treatment types using prosthesis over implants have been reported, being the singles immediate loading therapy with more controversy. The meaning of the present study is established the characteristics of bone repair in dental implant submitted to immediate loading. It wa...

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Desenvolvimento de plataforma elíptica osseointegrável para implante dentário, guias de perfuração e técnica cirúrgica de implantação - estudo em fêmures de cães / Development of osseointegrated elliptic platform for dental implant, surgical guides and surgical technique of implantation study in femurs of dogs

The aim of this study was to develop a dental implant for use in dogs with similar format to the biradicular teeth of these animals and surgical technique for its implantation, with features that allow the osseointegration. The implant is composed of three parts, two conic thread...

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Biomechanical evaluation of subcrestal dental implants with different bone anchorages

This study evaluated the biomechanical influence of apical bone anchorage on a single subcrestal dental implant using three-dimensional finite element analysis (FEA). Four different bone anchorage designs were simulated on a posterior maxillary segment using one implant with plat...

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In-vivo bone response to titanium screw implants anodized in sodium sulfate

PURPOSE: To evaluate the early bone response to a nanotextured dental implant treated with sodium sulfate (Na2SO4), using a rabbit model. METHODS: Twelve animals were randomly divided into group 1 (Control) - machined implants and group 2 (Test) - nanotextured implants. Extra-or...

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PREVALENCE, DIAGNOSIS AND CRITERIA FOR IDENTIFICATION OF RISK FACTORS FOR LOCAL Periimplantitis / PREVALÊNCIA, CRITÉRIOS DE DIAGNÓSTICO E IDENTIFICAÇÃO DE FATORES DE RISCO LOCAIS PARA A PERIIMPLANTITE

The aim of this study was to identify potential risk factors for periimplantitis based on data collected from a private clinic in Campina Grande-PB. Information collected from dental charts included patient sex, age and time period since installation of the implant or prosthesis....

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