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Research Interests: Medicine and Osteopenia
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Research Interests: Dentistry, Music, Adolescent, Medicine, Humans, and 15 moreHabits, Female, Male, LIP, Mandible, Aged, Middle Aged, Chewing gum, Food habits, Adult, Mastication, Chi Square Distribution, Bruxism, Nail biting, and Cheek
To compare the amplitude of mandibular movement measurements obtained by two different methods: the ultrasound JAM system and digital caliper rule in individuals with temporomandibular disorder (TMD) vs. Sixty individuals, without... more
To compare the amplitude of mandibular movement measurements obtained by two different methods: the ultrasound JAM system and digital caliper rule in individuals with temporomandibular disorder (TMD) vs. Sixty individuals, without distinction between sex and age were evaluated: 30 with diagnosis of TMD (RDC/TMD) and 30 controls. Mandibular movements of opening, protrusion, and left and right laterality were measured by means of two Instruments: Digital caliper rule and 3D ultrasonic Jaw Motion Analyzer (JMA-Zebris Medizintechnik, Isny/Allgäu, Germany). Data obtained were analyzed by descriptive analysis and compared by parametric statistics (Student's t-test), adopting a 5% level of significance. When comparing the digital caliper rule with JMA, no significant differences were found for any of the movements evaluated (p > 0.05). In the comparison between groups, a difference was found in protrusion for both instruments used: JMA (p = 0.004) and digital caliper rule (p = 0.003), with the TMD group presenting reduced movement of protrusion when compared with the control group. This study found no differences in obtaining the amplitude of mandibular movements when using the digital caliper rule or JMA system; both methods are effective. However, the ultrasonic system allows other types of analyses to be performed, such as the trajectory and speed of movement. Among the mandibular movements analyzed, protrusion was shown to be more compromised and limited in TMDs.
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A patient was seen at the Total Prosthesis Clinic complaining of facial pain after using the same prosthesis for 46 years. Clinical examination revealed TMJ disturbance due to a loss of the vertical dimension caused by a wearing of the... more
A patient was seen at the Total Prosthesis Clinic complaining of facial pain after using the same prosthesis for 46 years. Clinical examination revealed TMJ disturbance due to a loss of the vertical dimension caused by a wearing of the teeth. Diagnosis indicated replacement with new prostheses, with a gradual recuperation in the vertical dimension by the application of resin over the lower teeth and a reconditioning of the support tissues. After the alleviation of pain, correction of the dysfunction and reestablishment of the vertical dimension of occlusion, new prostheses were made. At the end of treatment, the patient felt a relaxed facial musculature, lifting the mandible to a resting position instead of constantly maintaining it in occlusion as before. The patient was given instructions as to use, conservation and hygiene of the prostheses and oriented to return for annual evaluation of occlusion and of the supporting oral structures, as well as the stability of the prostheses.
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The aim of this study was to assess the influence of accelerated artificial aging (AAA) on the surface hardness of acrylic resins. The following three commercial brands of acrylic resins were tested: Vipi Flash (autopolymerized resin),... more
The aim of this study was to assess the influence of accelerated artificial aging (AAA) on the surface hardness of acrylic resins. The following three commercial brands of acrylic resins were tested: Vipi Flash (autopolymerized resin), Vipi Wave (microwave heat-polymerized resin) and Vipi Cril (conventional heat-polymerized resin). To perform the tests, 21 test specimens (65x10x3 mm) were made, 7 for each resin. Three surface hardness readings were performed for each test specimen, before and after AAA, and the means were submitted to the following tests: Kolmogorov-Smirnov (P>0.05), Levene Statistic, Two-way ANOVA, Tukey Post Hoc (P<0.05) with the SPSS Statistical Software 17.0. The analysis of the factors showed significant differences in the hardness values (P<0.05). Before aging, the autopolymerized acrylic resin Vipi Flash showed lower hardness values when compared with the heat-polymerized resin Vipi Cril (P=0.001). After aging, the 3 materials showed similar performa...
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Research Interests: Biomedical Engineering, Rehabilitation, Pain, Exercise therapy, Medicine, and 15 morePhysical Therapy, Pain Management, Humans, Female, Male, Palpation, Low Level Laser Therapy, Middle Aged, Tenderness, Adult, Randomized Controlled Trial, Low Level Light Therapy, Orofacial pain, Pain Measurement, and Temporomandibular Joint Disorders
Background: Masticatory behavior was investigated in a group of patients presenting with temporomandibular disorders (TMDs) and compared with a Control Group. The goal of study was also to assess if patients were capable of making... more
Background: Masticatory behavior was investigated in a group of patients presenting with temporomandibular disorders (TMDs) and compared with a Control Group. The goal of study was also to assess if patients were capable of making judgements about chewing difficulties and intensity of pain. Methods: A comprehensive examination protocol was used to gather data about signs and symptoms of temporomandibular disorders. Subjects under study were instructed to chew and images were recorded in a videocassette for further analysis. We used a category scale to evaluate intensity of pain and chewing difficulties in a group of 23 TMD patients and 23 controls independent of age, sex or socioeconomic status. Full dentures wearers were not included in this study. Results: The results of this investigation demonstrated that the frequencies of difficulties to open the mouth wide, unilateral chewing and chewing difficulties were significantly more prevalent in the group of TMD patients as compared to the control. Bruxing behavior was more prevalent in TMD patients and the time to eat a cookie was significantly longer. Subjects were capable of making judgements about severity of pain and chewing difficulties. In the TMD Group, average of both judgements were the same or close when subgroups were divided according to chewing preference and location of pain. Conclusions: Based on the results of this study, we concluded that the chewing pattern in TMD patients cannot solely be considered as a response to the location of pain and dysfunction.
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Introduction The rapid maxillary expansion (RME) reduces the risk of developing structural and functional disorders in the stomatognathic system. Objective To examine the effects of the RME as a treatment for the posterior crossbite,... more
Introduction The rapid maxillary expansion (RME) reduces the risk of developing structural and functional disorders in the stomatognathic system. Objective To examine the effects of the RME as a treatment for the posterior crossbite, related with the electromyographic activity of the masticatory muscles and the TMJ noises in a population of children. Material and method 13 girls and 7 boys, regardless of the type of malocclusion, with a mean age of 9 years old (± 3), were treated with RME. The electrovibratography analyzed the TMJ noise, and the electromyography analyzed the masticatory muscles before treatment (T0) and after three months of a short-term follow-up (T1). The comparisons of the affected and unaffected sides by the crossbite were performed using Mann-Whitney’s test, and to compare data before and after treatment the Wilcoxon’s test was used (level of significance: 5%). Result No significant differences were found in the parameters of joint noise in comparison to the si...
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RESUMO Objetivo Analisar os movimentos mandibulares de pacientes com DTM dolorosa durante a função de fala, a fim de compreender possíveis alterações e quais subgrupos de pacientes podem apresentá-las. Além de identificar quais sinais e... more
RESUMO Objetivo Analisar os movimentos mandibulares de pacientes com DTM dolorosa durante a função de fala, a fim de compreender possíveis alterações e quais subgrupos de pacientes podem apresentá-las. Além de identificar quais sinais e sintomas relacionados com a DTM dolorosa são percebidos no desempenho desta função. Método Trinta e dois sujeitos com idade entre 18 e 60 anos (35,1 ± 8,9), 23 com DTM ( DC/TMD; oito homens e 15 mulheres) e nove controles foram avaliados quanto à: autopercepção de sinais e sintomas de DTM durante a fala (ProDTMMulti); amplitude de movimentos mandibulares durante a leitura de lista de palavras (eletrognatografia, Jaw Motion Analyses). Foi calculada a porcentagem de utilização de movimento durante o desempenho da fala em função da amplitude máxima individual, e foram subdivididos grupos de pacientes com DTM dolorosa (DTM-D) e dolorosa/articular (DTM-D/A). Resultados O grupo DTM-D/A apresentou maior porcentagem de utilização de movimento na lateralidade...
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RESUMO O aumento da dor/desconforto durante atividades como mastigar, falar e deglutir é comumente relatado por pacientes com Disfunção Temporomandibular (DTM) e a terapia fonoaudiológica miofuncional orofacial (TMO) tem sido proposta... more
RESUMO O aumento da dor/desconforto durante atividades como mastigar, falar e deglutir é comumente relatado por pacientes com Disfunção Temporomandibular (DTM) e a terapia fonoaudiológica miofuncional orofacial (TMO) tem sido proposta como parte do tratamento desta condição. Porém é uma modalidade que deve ser instituída quando o quadro de DTM e dor não está exacerbado a fim de não impedir ou dificultar a realização dos exercícios. Objetivo O objetivo deste estudo foi analisar o efeito da TMO no tratamento de pacientes com DTM, segundo o Research Diagnostic Criteria for temporomandibular disorders (RDC/TMD), após analgesia com laserterapia de baixa intensidade (LBI), quanto às condições miofuncionais orofaciais (CMO) e quanto à percepção dos sintomas de DTM. Método Transcorridos 30 dias após a finalização da LBI, cinco pacientes foram avaliados, com idades entre 50 e 61 anos. A aplicação do questionário ProDTMMulti para investigação da autopercepção da sintomatologia de DTM e do exa...
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The aim of this study was to evaluate the condylar position in patients with intra-articular temporomandibular disorders (TMD) before and after treatment with interocclusal stabilization splint (ISS) through computerized tomography cone... more
The aim of this study was to evaluate the condylar position in patients with intra-articular temporomandibular disorders (TMD) before and after treatment with interocclusal stabilization splint (ISS) through computerized tomography cone beams (CTCB). Twenty-two patients diagnosed with intra-articular TMD (Research Diagnostic Criteria for Temporomandibular Disorders - Group II) were submitted to the therapy with ISS during 90 days. Three CTCB exams were performed in three moments: T1 – Initial moment, before the ISS therapy, with the patient in dental occlusion; T2 (after 90 days of treatment, in occlusion on the ISS) and T3 (after 90 days of treatment, with the patient in dental occlusion). Afterwards the anterior (AS), superior (SS) and posterior articular space (PS) in sagittal sections were then measured and the data were statistically analyzed using the t-test. There was a statistically significant increase in the comparison between T1 and T2 for the AS and PS (p< 0.0001), be...
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Objective: To describe a case of unilateral TMJ osteoarthritis from the Dentistry point of view, aiming to restore the quality of life through non-invasive procedures. Description of case: M.C.B., female, 69 years, complaining about a... more
Objective: To describe a case of unilateral TMJ osteoarthritis from the Dentistry point of view, aiming to restore the quality of life through non-invasive procedures. Description of case: M.C.B., female, 69 years, complaining about a sudden change in the bite, difficulty to chewing/opening mouth and pain in the orofacial region. At extraoral examination, we observe the presence of crepitus in the left TMJ, click in the right TMJ (electrovibratography) and pain on palpation in the left TMJ region. Absence of tooth contacts on the right side in maximum habitual intercuspation (MHI). The intraoral examination revealed the presence of inflammation and excessive wear in the left mandibular condyle (osteoarthritis), visualized by computed tomography and magnetic resonance imaging with contrast. The patient underwent treatment by oclusal splint (night use), overlay removable partial dentures (daytime use), application of lower level laser therapy and transcutaneous electrical nervous stim...
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The aim of this study was to evaluate the perceptions of two patient groups with temporomandibular disorder (TMD) (muscle and joint) in relation to the signs and symptoms before and after treatment with acupuncture, by using two protocols... more
The aim of this study was to evaluate the perceptions of two patient groups with temporomandibular disorder (TMD) (muscle and joint) in relation to the signs and symptoms before and after treatment with acupuncture, by using two protocols (local points and distant points), according to the ProTMDMulti protocol and the Visual Analog Scale. Sixty-eight patients were divided into four groups: the muscle treated with acupuncture at local points (MUS-LP), muscle treated with acupuncture at distant points (MUS-DP), joint and muscle treated with acupuncture at local points (JOI-LP) and joint and muscle treated with acupuncture at distant points (JOI-DP) groups. The evaluations were performed at four times: initial (upon entry into the study), control (4 weeks after the initial, as of yet no intervention), final (after six sessions of acupuncture), and follow-up (four sessions after the end of treatment). The best results were seen in the JOI-LP and the MUS-DP groups, in which the perceptio...
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The objective of the present study was to relate changes in reflex-vegetative functions and phonetics to the etiology of temporomandibular joint dysfunction-pain syndrome. Myofunctional therapy associated with an occlusal splint had a... more
The objective of the present study was to relate changes in reflex-vegetative functions and phonetics to the etiology of temporomandibular joint dysfunction-pain syndrome. Myofunctional therapy associated with an occlusal splint had a very significant effect in relieving the pain and dysfunction caused by this type of disorder.
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The authors studied the effect of a positioning orifice introduced in the anterior palatine region of occlusal splints for patients with craniomandibular disorders of swallowing and speech patterns. The patients were evaluated in four... more
The authors studied the effect of a positioning orifice introduced in the anterior palatine region of occlusal splints for patients with craniomandibular disorders of swallowing and speech patterns. The patients were evaluated in four distinct situations. It was concluded that the splint orifice significantly favored swallowing and speech while the splint was being used, and is more comfortable for the patient.
Research Interests: Dentistry, Orthodontics, Medicine, Speech, Humans, and 8 moreSwallowing, Female, Pubmed, Male, Mandible, Tongue, Splints, and Deglutition
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Desordem temporomandibular: análise da freqüência e severidade dos sinais e sintomas antes e após a placa de oclusão.