Gustavo Augusto Seabra Barbosa

Gustavo Augusto Seabra Barbosa
Universidade Federal do Rio Grande do Norte | IIP · Department of Dentistry

DDS, Ms, PhD

About

77
Publications
20,468
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946
Citations
Additional affiliations
July 2006 - present
Universidade Federal do Rio Grande do Norte
Position
  • Professor (Associate)
July 2004 - June 2006
Universidade Federal de Uberlândia (UFU)
Position
  • Substitute Professor

Publications

Publications (77)
Conference Paper
Aim of investigation: Considering the high prevalence of otological symptoms in subjects with temporomandibular disorders (TMD) and the association between neck dysfunction and otological symptoms, cervical spine alterations in patients with TMD with and without otological complaints need to be further evaluated. The aim of this study was to evalua...
Article
Objective: To evaluate neck pain, disability, and deep neck flexor (DNF) performance of individuals with temporomandibular disorders (TMD). Methods: Eighty individuals were divided into the following: arthrogenic TMD (n = 40), myogenic TMD (n = 12), and mixed TMD (n = 28). Neck pain intensity, neck disability, and DNF performance were evaluated....
Article
A pandemia de Covid-19 trouxe um aumento do uso de equipamentos de proteção individual (EPI) pelos profissionais da saúde, além de um aumento do relato de episódios de cefaleia. Dessa forma, esse estudo verificou a presença e as características da cefaleia pelo uso de EPI em cirurgiões-dentistas (CD) durante a pandemia de COVID-19. Foram incluídos...
Article
Full-text available
Abstract Dentists are exposed to contamination by SARS-CoV-2 due to dental interventions, leading to a state of alert and potential risk of negative impact in mental health and sleep quality, associated with Temporomandibular Disorder (TMD) and bruxism. Objective: to evaluate the psychosocial status, sleep quality, symptoms of TMD, and bruxism in B...
Chapter
Full-text available
O objetivo desse capítulo é o de apresentar ao leitor algumas considerações a respeito de uma das principais causas de Dor Orofacial (DOF) nos pacientes que procuram atendimento odontológico: as Disfunções Temporomandibulares (DTM), abordando sua classificação; diagnóstico, características epidemiológicas e enfatizando o papel do cirurgião-dentista...
Article
Purpose: To compare oral health-related quality of life (OHRQoL) and masticatory performance (MP) in patients treated with a mandibular complete denture (CD) and immediately loaded implant-supported prostheses (ISP). Materials and methods: Forty patients were divided into CD and ISP groups. Initially, all patients were treated with a mandibular...
Article
Background and objective: To evaluate the effects of Chinese scalp acupuncture in patients diagnosed with Temporomandibular Disorders (TMD) on pain, sleep and quality of life (QOL), and compare these results with the results from traditional therapies. Methods: Sixty patients diagnosed with TMD using the Research Diagnostic Criteria for Temporom...
Article
Introdução: A disfunção temporomandibular (DTM), distúrbio que acomete as estruturas ósseas, musculares e articulares da região orofacial tem sido cada vez mais recorrente. Esse distúrbio causa dores, limitação de movimento e alteração na qualidade de vida dos pacientes acometidos com a doença. Se fazem necessárias medidas de controle e tratamento...
Article
Objective: To evaluate current studies to establish and compare the efficacy of traditional and laser acupuncture in reducing the signs and symptoms of temporomandibular disorders (TMD). Methods: PubMed, Cochrane, Scopus, and Web of Science databases were searched. Clinical, controlled, and randomized trials written in English and having used tradi...
Article
This study aimed to evaluate the amplitude and pattern of mouth opening in patients treated with occlusal plaque (OP) after 1 and 3 months of treatment. The mouth opening pattern was assessed using the metric method and the mouth opening amplitude of 23 patients treated with occlusal plaque (OP; N = 23). All patients were diagnosed with TMD accordi...
Article
Objetivo: Avaliar a amplitude e o padrão de abertura bucal em pacientes diagnosticados com Disfunção Temporomandibular (DTM) que foram submetidos à tratamento com Placa Oclusal (PO) e Fisioterapia (F) após 1 e 3 meses de tratamento. Metodologia: Foram avaliados o padrão de abertura bucal e a amplitude de abertura bucal de 48 pacientes submetidos a...
Article
O tratamento com implantes dentários vem sendo usado para reabilitar os pacientes desdentados através da prótese fixa sobre implantes. Na maxila, o osso alveolar pode estar comprometido pela reabsorção óssea e a pneumatização do seio maxilar, resultando numa altura óssea insuficiente para a instalação do implante. Dessa forma, o levantamento do sei...
Article
Objetivo: Avaliar a eficácia do uso da solução de fluoreto de sódio a 4% para o tratamento da Hipersensibilidade Dentinária Cervical (HSDC) em comparação ao LASER de baixa potência. Método: Foi realizado um ensaio clínico controlado randomizado, constituído por um grupo teste (47 dentes) e grupo controle (47 dentes). Para o grupo teste foi realizad...
Article
A irradiação com laser de baixa intensidade (LLLI) modula diversos processos biológicos como a proliferação e diferenciação das células, estimulando a cicatrização dos tecidos. Objetivou-se avaliar, através de uma análise histomorfométrica, o processo de osteogênese em defeitos confeccionados no crânio de ratos preenchidos com biomateriais e submet...
Article
Recovery of worn tooth surfaces using composite resin has been increasingly accepted by clinicians, since rehabilitation through additive techniques aims at minimal or no intervention and preserves healthy dental structure, ensuring longevity to the treatment. Adhesive dentistry can afford promising results through a correct diagnosis and treatment...
Article
Devido à perda dentária precoce, a reabsorção alveolar durante toda a vida, assim como a redução de tamanho do rebordo alveolar. A perda de altura óssea leva ao aplainamento do palato, isto leva a pneumatização dos seios maxilares junto com a expansão de suas câmaras, fator este que dificulta o sucesso na fixação de elementos implantáveis. O estudo...
Article
This dental technique note describes the manufacture of a new design of occlusal splint for protection of shear forces in anterior aesthetic restorations in patients with sleep bruxism, using the computer-aided design and computer-aided manufacturing (CAD/CAM) technique. Maxillary and mandibular arches were scanned and a Jig with polyvinyl siloxane...
Article
Objective: Evaluate the effectiveness of manual therapy and exercises for improving function and/or pain in patients diagnosed with temporomandibular joint dysfunction (TMD) through a systematic review of the literature. Methods: A systematic and manual electronic search of the data was performed in the following databases: MEDLINE-Pubmed, Cochrane...
Article
Objective: Evaluate, through a systematic literature review, the efficacy of manual therapy (MT) in the release of masticatory muscles in patients with temporomandibular disorders (TMD) compared to other forms of treatment. Methods: Electronic databases as SCOPUS, PUBMED and Web of Science were used to search for randomized controlled clinical tria...
Article
Implantes dentários realizados imediatamente após a exodontia contam com uma alta taxa de sucesso e permitem a reabilitação do paciente com uma quantidade menor de intervenções para a finalização do caso. O estudo em questão tem o objetivo de relatar um caso de uma paciente que foi submetida a técnica do implante imediato em área estética. Neste ar...
Article
Atualmente, a região posterior de mandíbula atrófica tem se tornado um desafio quando se fala em reabilitação utilizando implantes dentários. Apesar do alto índice de sucesso das técnicas cirúrgicas ideais para cada caso, nos deparamos com complicações no trans e pós-operatório, tais como: parestesia, infecções de tecidos moles e ósseo, hemorragia,...
Article
Atualmente o sucesso das reabilitações com implantes tem despertado nos pacientes o interesse e a esperança de sorrir novamente após terem sido submetidos a exodontias no passado, e pelo fato da não adaptação ao uso de próteses dentárias convencionais por muito tempo. O procedimento de osteotomia segmentar da maxila é uma proposta de tratamento viá...
Article
Introdução: A Hiperplasia do Processo Coronoide (HPC) é uma condição incomum, caracterizada pelo hiperdesenvolvimento do processo coronoide, gerando principalmente uma limitação da abertura bucal, podendo se manifestar de forma uni ou bilateral. Objetivou-se apresentar um caso clínico de um paciente do sexo masculino com hiperplasia bilateral do pr...
Article
Full-text available
Aims: To evaluate the effectiveness of manual therapy in the treatment of myofascial pain related to temporomandibular disorders. Methods: Randomized clinical trials were searched in the Cochrane Library, MEDLINE, Web of Science, Scopus, LILACS, and SciELO databases using the following keywords: temporomandibular joint disorders; craniomandibula...
Article
Statement of problem Removable partial dentures (RPDs) are traditionally made by casting, a complex, error-prone, and time-consuming process. Computer-aided design and computer-aided manufacturing (CAD-CAM) RPD systems may simplify the clinical steps and minimize errors; however, the accuracy of CAD-CAM RPD systems is unclear. Purpose The purpose...
Article
Introduction: Temporomandibular dysfunction (TMD) is a condition that affects the stomatognathic system. Objective: To determine the effect of treatment with an occlusal splint (OS), manual therapy (MT), counselling (CS) and the combination of an occlusal splint and counselling (OSCS) on pain and anxiety in patients with TMD. Materials and meth...
Article
Objectives: The aim of this study was to evaluate the relationship between anxiety, quality of life (QL), and sociodemographic aspects and temporomandibular disorders (TMDs) and to assess the predisposition to TMDs in patients with low QL and anxiety. Study design: In total, 120 patients (60 TMD/60 non-TMD) were screened to assess QL (World Heal...
Article
Objective: To evaluate, in the short term, the effectiveness of conservative therapies in pain, quality of life, and sleep in TMD patients. Methods: Eighty-nine TMD patients diagnosed by RDC-TMD were distributed in occlusal splints (OS; n= 24), manual therapy (MT; n= 21), counseling (C; n= 19), and OS associated with C (OSC; n= 25) therapy groups....
Article
Full-text available
Objective To evaluate the morphology of filler particles, chemical composition, microhardness (MH), water sorption (WSp), and solubility (WSl) of a regular viscosity bulk fill and traditional composite resins. Methods Eighty samples (Ø:5 mm; height: 4 mm) were prepared according to the factors “composite” (Aura/SDI, FiltekZ250 XT/3M, Aura Bulk Fil...
Article
Purpose: To evaluate whether treatment with new complete dentures improves quality of life in elderly patients. Materials and methods: A literature search was conducted in the MEDLINE/PubMed, Scopus, LILACS, SciELO, Web of Science, and Cochrane Library databases using specific keywords for relevant articles published up to March 2018. Three revi...
Article
Objective: To verify the level of agreement among different indexes used to achieve the prevalence of Temporomandibular Disorders (TMD). Material and Methods : One hundred one dental students were selected by a randomized process. TMD were evaluated by the Fonseca’s Anamnestic Index (FAI), Helkimo’s Clinical Index (HCI), and the Research Diagnostic...
Article
Full-text available
The aim of this study was to evaluate the peri-implant bone loss of External Hexagon (EH) and Morse Taper (MT) implants in patients wearing immediately loaded mandibular overdentures during a 1-year follow-up. This is a non-randomized controlled clinical trial including 18 MT and 22 EH implants. Periapical radiographs were taken after overdentures...
Article
Background: The poor hygiene of peri-implant tissues causes inflammation at tissue-implant interface, which may impair the rehabilitation success. The aim of this study was to evaluate the influence of external hexagon and Morse taper implants on peri-implant health in patients wearing mandibular overdentures for 1 year. Materials and Methods: A to...
Article
Full-text available
Background The poor hygiene of peri-implant tissues causes inflammation at tissue-implant interface, which may impair the rehabilitation success. The aim of this study was to evaluate the influence of external hexagon and Morse taper implants on peri-implant health in patients wearing mandibular overdentures for 1 year. Materials and Methods A tot...
Article
Objective: To evaluate the prevalence of temporomandibular disorder (TMD) in dental students and its correlation with anxiety. Methods: After probability sampling, 105 students were selected. The diagnosis of TMD was carried out using the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) – Axis I; the anxiety level was obtained...
Article
Full-text available
Aims: To carry out a systematic review of clinical trials published up to 2015 to determine the effectiveness of acupuncture in treating myofascial pain in temporomandibular disorder (TMD) patients. Methods: The databases used were the Cochrane Library, PubMed, Scopus, and Web of Science; the dates of the articles surveyed ranged from 1990 to Ma...
Article
Objective: To evaluate the relationship between temporomandibular disorders (TMD) and craniocervical posture in the sagittal plane measured from lateral radiographs of the head. Methods: The sample was comprised of 80 randomly selected students of dentistry at the Federal University of Rio Grande do Norte. Research Diagnostic Criteria for TMD (RDC/...
Article
Full-text available
Introducao : A disfuncao temporomandibular (DTM) e uma alteracao gerada por meio de varios disturbios e que pode afetar os musculos mastigatorios, a articulacao temporomandibular, ou ambos. Objetivo : Abordar formas de tratamento para a DTM, como tambem o seu manejo clinico interdisciplinar, na conducao de um quadro de DTM sintomatico a reabilitaca...
Article
Objective: Dental students have high levels of anxiety that can affect not only academic performance but also increase the risk for other diseases. It is believed that the increase in the incidence of chronic orofacial pain in temporomandibular disorders (TMDs) may have an impact on the quality of life and general health of subjects. The aim of th...
Article
Full-text available
The aim of this non-randomized controlled clinical trial was to evaluate the oral health-related quality of life and masticatory efficiency of patients rehabilitated with mandibular two-implant overdentures with immediate loading or conventional dentures. Fifty completely edentulous patients wearing bimaxillary conventional dentures, for at least o...
Article
Objectives: The objective of this review was to assess the literature for evidence investigating the role of TGF-β in temporomandibular joint disease with osteoarthritis. Method: An electronic and manual search was carried out on the databases, MEDLINE/PubMed, Cochrane Library, Web Of Science, and EMBASE, from 1975 to December 2015 by two indepe...
Article
Purpose: The aim of this study was to evaluate the effectiveness of fabrication methods (computer-aided design/computer-aided manufacture [CAD/CAM], copy-milling, and conventional casting) in the fit accuracy of three-unit, screw-retained fixed dental prostheses. Materials and methods: Sixteen three-unit implant-supported screw-retained framewor...
Article
This study aims to compare stress transmitted to implants and passive fit of one-piece cast frameworks fabricated with 3 different materials: commercially pure titanium (G1-CP Ti), cobalt-chromium alloy (G2-Co-Cr), and nickel-chromium-titanium alloy (G3-Ni-Cr-Ti). In total, 12 frameworks simulating bars for fixed prosthesis in a model with 5 implan...
Article
Full-text available
The objective of this research was to evaluate the passivity by measuring the passive fit and strain development of frameworks screwed on abutments, made by CAD/CAM technology, and to compare these parts with samples manufactured by conventional casting. Using CAD/CAM technology, four samples were made from zirconia (Zircad) and four samples were m...
Article
Full-text available
Objective: To evaluate whether the high expression of metalloproteinases observed in the temporomandibular joint can be considered as an indicator of degenerative disease. Methods: The PubMed, BVS, Embase, and ScienceDirect databases were systematically searched for articles written in English, regarding human studies that were published from 2003...
Article
Full-text available
The abutment/implant interface has been reported as a significant factor on tensile transfer, adverse biological responses or prosthetic restoration complications. The abutment/implant junction success is directly related to pre-load attained during torque application. The purpose of this work was to assess the vertical fit/misfit degree on abutmen...
Article
Full-text available
Introduction: Combination Syndrome (CS) is a pathological condition observed in maxillary complete denture (CD) and mandibular removable partial denture (RPD) wearers. Purpose: The aim of this study was to observe and measure the prevalence of CS signs in treatment-seeking wearers of maxillary CD associated or not with RPD (mandibular Kennedy Clas...
Article
This study aims to investigate a possible correlation between vertical misfits and the stresses transmitted to implants from one-piece casted frameworks fabricated with 3 different materials: commercially pure titanium, cobalt chromium alloy, and nickel chromium titanium alloy. Twelve frameworks simulating screw-retained prosthesis were fabricated...
Article
Statement of problem: Relatively little information is available on the accuracy of the abutment-implant interface in computer-aided design and computer-aided manufacturing (CAD/CAM)-fabricated zirconia and cobalt-chromium frameworks. Purpose: The purpose of this study was to compare the fit accuracy of CAD/CAM-fabricated zirconia and cobalt-chr...
Article
Full-text available
A terapia Watsu é uma técnica de terapia aquática para relaxamento realizada individualmente em piscina aquecida com música em ambiente tranquilo e harmonioso, envolvendo movimentos rotacionais, alongamento, trações nas articulações e pressões em pontos de tensão muscular. Este estudo avaliou o efeito da terapia Watsu nos aspectos psicológicos (ans...
Article
This systematic review evaluated the influence played by the number of implants on the results of rehabilitation treatment with mandibular overdentures on 2 or 4 implants. The literature search was conducted using PubMed, Embase and Cochrane databases. Specific terms were used in performing a search from January 1980 to January 2013. The search str...
Article
Full-text available
In this study we investigate the phenomenon of bruxism, defined as the act of clenching and/or grinding the teeth, a habit that compromises the orofacial region. It is often associated with emotional aspects, such as anxiety and stress, and may result in alterations to orofacial structures, functional modifications and social repercussions. The aim...
Article
Full-text available
The aim of this review was to investigate the effectiveness of counselling and other self-management-based therapies on muscle and temporomandibular joint (TMJ) pain relief and increasing the functional abilities of patients with temporomandibular disorders (TMD). A systematic literature review was conducted by three independent reviewers and inclu...
Article
Full-text available
The aim of this study was to associate minor psychiatric disorders (general health) and quality of life with temporomandibular disorders (TMD) in patients diagnosed with different TMD classifications and subclassifications with varying levels of severity. Among 150 patients reporting TMD symptoms, 43 were included in the present study. Fonseca's an...
Article
Full-text available
Post-poliomyelitis syndrome (PPS) is characterized by the delayed appearance of new neuromuscular symptoms in patients several years after their acute poliomyelitis paralysis. Clinical features of PPS include fatigue, joint and muscle pain, new muscular weakness and bulbar symptoms. The diagnosis is essentially clinical after excluding other neurol...
Article
Summary  The aim of this article is to investigate patient satisfaction, survival rate of implants, and prosthetic complications or maintenance for rehabilitation with removable partial dentures associated with implants in mandibular Kennedy class I and II cases. A systematic literature review was conducted by three independent reviewers including...
Conference Paper
Objective: The aim of this study was to evaluate the masticatory efficiency of patients rehabilitated with mandibular removable partial denture (RPD) or not. Method: The masticatory efficiency of 60 patients (17 were rehabilitated with RPD while 43 were not) was compared (colorimetric test). All patients wore maxillary complete denture to standar...
Conference Paper
Objective: The aim of this study was to verify the prevalence of temporomandibular disorders (TMD) in adults with shortened dental arches (SDA) (n=60), with and without free-end removable partial dentures (RPD). Method: The subjects with mandibular SDA and edentulous maxilla were users of maxillary complete denture and mandibular RPD (SDA+RPD...
Article
An inappropriate prosthetic fit could cause stress over the interface implant/bone. The objective of this study was to compare stresses transmitted to implants from frameworks cast using different materials and to investigate a possible correlation between vertical misfits and these stresses. Fifteen one-piece cast frameworks simulating bars for fi...
Article
Full-text available
This study evaluated the loss of the torque applied after use of new screws and after successive tightening. Four infrastructures (IE), using UCLA castable abutment type, were cast in cobalt-chromium alloy and new abutment screws (G1) were used in a first moment. Subsequently, the same abutment screws were used a second time (G2) and more than two...
Article
Alguns trabalhos avaliam o desajuste vertical na interface pilar/implante por meio do teste do parafuso único, enquanto outros aplicam torque nos parafusos antes da avaliação. Este trabalho objetiva avaliar se estas duas metodologias geram diferentes interpretações dos resultados quanto ao nível de ajuste vertical das infra-estruturas. Com a utiliz...
Article
Full-text available
This study compared vertical and passive fit of one-piece cast frameworks made with 3 different materials: commercially pure titanium (CP Ti - G1), cobalt-chromium alloy (Co-Cr - G2) and nickel-chromium-titanium alloy (Ni-Cr-Ti - G3). Fifteen frameworks were obtained simulating bars for fixed prosthesis in a model with 5 implants. The passive and v...
Article
Full-text available
This study investigated whether there is a direct correlation between the level of vertical misfit at the abutment/implant interface and torque losses (detorque) in abutment screws. A work model was obtained from a metal matrix with five 3.75 x 9 mm external hex implants with standard platform (4.1 mm). Four frameworks were waxed using UCLA type ab...