Effectiveness of the therapeutic laser in the syndrome of dysfunction of the temporomandibular joint of arthrogenic origin / Eficacia del láser terapéutico en el síndrome de disfunción de la articulación temporomandibular de origen artrogénico

Abstract Temporomandibular joint dysfunction syndrome (TMD), is a collective term characterized by symptoms involving chewing muscles, temporomandibular joint and orofacial structures. The efficacy of low intensity laser (LLLT) Gallium arsenide, in combination with a non-steroidal anti-inflammatory drug (NSAID) was evaluated. The main objective was to evaluate the maximum mouth opening without pain (ABM), arthralgia in the joint capsule through visual analog scale (VAS), laterality, protrusion, joint noises and count of tablets ingested per group. A controlled clinical trial (double-blind-randomized) was carried out in 30 subjects, who presented DTM of arthrogenic etiology; 5 applications of LLLT were made with wavelength of 810 nm, output optical power of 100-200 mw, emission PW=Pulsed (1-10,000Hz), dose of 10 jouls-cm², time of 1.44 minutes in mouth closed and with the mouth half open. One more follow-up appointment per month. There were two groups: experimental and control group, where different variables were analyzed (ABM, laterality, protrusion, VAS and sociodemographic). In the control group, a supposed LT application (not active) was made, for later comparison. Pain-free ABM was assessed in all appointments in addition to the other clinical parameters. Repeated measures analysis was performed with mixed models. Thirty patients were included of which 28 finished the treatment, two of them were lost during follow-up. The groups were similar in all their baseline variables. There were no statistically significant differences when applying the final multiple regression analysis, in the ABM, or in any other of the clinical parameters analyzed. LT was not effective in treating arthrogenic DTM.

Resumen El síndrome de disfunción de la articulación temporomandibular (DTM) es un término colectivo caracterizado por síntomas que involucran músculos de la masticación, articulación temporomandibular y estructuras orofaciales. Se evaluó la eficacia del láser de baja intensidad (LLLT) Arseniuro de galio, en combinación con un antiinflamatorio no esteroideo (AINE). El objetivo principal fue evaluar la apertura bucal máxima sin dolor (ABM), la artralgia en cápsula articular a través de escala visual análoga (EVA), lateralidades, protrusión, ruidos articulares y conteo de tabletas ingeridas por grupo. Se realizó un ensayo clínico controlado (doble ciego-aleatorizado) en 30 sujetos, que presentaban DTM de etiología artrogénica; se les realizaron 5 aplicaciones de LLLT con longitud de onda de 810 nm, potencia óptica de salida de 100-200 mw, emisión PW=Pulsed (1-10,000Hz), dosis de10 jouls-cm², tiempo de1.44 minutos a boca cerrada y con la boca semiabierta. Una cita más de seguimiento al mes. Se tuvieron dos grupos: experimental y grupo control, donde se analizaron diferentes variables (ABM, lateralidades, protrusión, EVA y sociodemográficas). En el grupo control se hizo una supuesta aplicación LT (no activo), para posterior comparación. En todas las citas se valoró la ABM sin dolor además de los otros parámetros clínicos. Se realizó análisis de medidas repetidas con modelos mixtos. Se incluyeron 30 pacientes de los cuales 28 finalizaron el tratamiento, dos de ellos se perdieron en el seguimiento. Los grupos fueron similares en todas sus variables basales. No hubo diferencias estadísticas significativas al aplicar los análisis de regresión múltiple finales, en la ABM, ni tampoco en ningún otro de los parámetros clínicos analizados. El LT no fue eficaz en el tratamiento de la DTM de origen artrogénico.

A cirurgia ortognática no tratamento da DTM em pacientes classe II / The orthognatic surgery in treatment of TMJ in class II patients

Introdução: A má oclusão Classe II pode influenciar negativamente na qualidade de vida dos pacientes, tanto na aparência facial, quanto função oral ou até ambas. Atualmente, o tratamento ortodôntico-cirúrgico é comumente utilizado em pacientes com discrepâncias esqueléticas graves. Objetivo: Este estudo tem como objetivo analisar os resultados da cirurgia ortognática associada ao tratamento ortodôntico nos pacientes que possuem DTM e má oclusão de Classe II por retrognatismo mandibular. Metodologia: Foi realizada uma pesquisa bibliográfica nas plataformas de buscas científicas Google Acadêmico, CAPES/MEC, PubMed/Medline, Scielo, Elsevier, e nas revistas AJO-DO (American Journal of Orthodontics and Dentofacial Orthopedics) e The Angle Orthodontist (An International Journal of Orthodontics and Dentofacial Orthopedics), utilizando as seguintes palavras chave: retrognatismo, cirurgia ortognática e transtornos da ATM. Conclusão: A maioria dos pacientes que apresentam sinais e sintomas de DTM pré-operatórios melhoram a disfunção e diminuem os níveis de dor com o tratamento ortognático. Além disso, o tratamento ortodôntico é de suma importância para se obter o sucesso do procedimento cirúrgico, assim como na estabilidade pós-cirúrgica.(AU)

Introduction: Class II malocclusion can negatively influence patients in quality of life, in the facial and oral appearance or both. Currently, orthodontic-surgical treatment is commonly used in patients with severe skeletal discrepancies. Objective: The objective of this study was to analyze the results of orthognathic surgery associated with orthodontic treatment in patients who have TMD and Class II malocclusion due to mandibular retrognathism. Methodology: A bibliographic search was performed in the scientific search platforms Google Scholar, CAPES/MEC, PubMed/Medline, Scielo, Elsevier, AJO-DO (American Journal of Orthodontics and Dentofacial Orthopedics) and in The Angle Orthodontist (An International Journal of Orthodontics and Dentofacial Orthopedics), using the keywords: retrognathism, orthognathic surgery and TMJ disorders. Conclusion: With orthognathic treatment, most patients who had preoperative DTM signs and symptoms showed an improvement and a decrease in pain levels. In addition, orthodontic treatment is important for the success of the surgical procedure, as well as for post-surgical stability.(AU)

Eficácia da reeducação postural global na dor de indivíduos com disfunção temporomandibular: uma revisão sistemática / Efficacy of global postural reeducation in pain of individuals with temporomandibular dysfunction: a systematic review

INTRODUÇÃO: Disfunção temporomandibular (DTM) é caracterizada por um conjunto de alterações funcionais, que envolvem fatores predisponentes, iniciantes e perpetuantes. Considerando que os desvios posturais desorganizam a harmonia corporal entre a postura da mandíbula e todo o sistema esquelético, várias modalidades fisioterapêuticas foram propostas no tratamento da DTM, incluindo a Reeducação Postura Global (RPG). OBJETIVO: Avaliar sistematicamente as evidências sobre a eficácia da RPG no tratamento da dor em indivíduos com DTM. MÉTODOS: Revisão sistemática realizada pesquisa nas bases de dados, maio a setembro 2017, Pubmed, Biblioteca Virtual em Saúde (Lilacs, Scielo e Medline), PEDro e Cochrane Library. Os critérios de inclusão: Ensaios clínicos randomizados (ECR) e Ensaios clínicos controlados (ECC); artigos publicados em língua inglesa, portuguesa e espanhola; que abordavam sobre o tratamento com RPG; com indivíduos adultos > 18 e ≤60 anos; diagnosticados com DTM; que continham avaliação da dor. Excluídos: estudos duplicados; que utilizaram exercícios para pacientes pós-cirúrgico e que apresentassem doenças sistêmicas ou qualquer afecção que afetasse o sistema osteomioarticular; que avaliaram pacientes com histórico de trauma facial ou cervical e em uso de medicamentos. RESULTADOS: Um total de 349 artigos foram encontrados, que após a eliminação de duplicatas, filtragem de títulos, resumos e leitura de texto completo foram incluídos na pesquisa três estudos, o que evidenciou a eficácia da RPG na redução da dor. CONCLUSÃO: Considerando os resultados obtidos neste estudo, foi possível concluir que a RPG demonstra ser eficaz na redução da dor presente na DTM. Porém, faz-se necessários mais ensaios clínicos randomizados com maior rigor metodológico, protocolos mais bem definidos, que possam auxiliar na tomada de decisão clínica e que contemplem também a comparação do tratamento entre homens e mulheres. [AU]

INTRODUCTION: Temporomandibular dysfunction (TMD) is characterized by a set of functional alterations, which involves predisposing, initiative and perpetuating factors. Considering that postural deviations disorganize the body arrangement between the jaw posture and the entire skeletal system, several physical therapy modalities have been proposed in the treatment of TMD, including Global Postural Reeducation (GPR). OBJECTIVES: To evaluate systematically the evidence of the efficacy of GPR in the treatment of pain in individuals with TMD. METHODS: Systematic review conducted in the databases, May to September 2017, Pubmed, Virtual Health Library (Lilacs, Scielo and Medline), PEDro and Cochrane Library. Inclusion criteria: Randomized controlled trials (RCTs) and controlled clinical trials (RCTs); articles published in English, Portuguese and Spanish; which dealt with RPG treatment; with adult individuals> 18 and ≤60 years; diagnosed with TMD; which contained pain assessment. Excluded: duplicate studies; who used exercises for post-surgical patients and who presented with systemic diseases or any affection that affected the osteomioarticular system; who evaluated patients with a history of facial or cervical trauma and using medications. RESULTS: 349 articles were found. After the elimination of duplicates, title filtering, abstracts and full text reading we included three studies, which evidenced the efficacy of GPR in reducing pain. CONCLUSION: Considering the results obtained in this study, it was possible to conclude that the GPR demonstrates to be efficacy in the pain reduction present in TMD. However, more randomized clinical trials with more methodological rigor, better defined protocols, that can aid in clinical decision-making and that also contemplate the comparison of treatment between men and women. [AU]

Prevalência de sinais e sintomas para disfunção temporomandibular em lutadores de boxe / Prevalence of signs and symptons for temporomandibular disfunctions in boxers

INTRODUÇÃO: A disfunção temporomandibular (DTM) possui origem multifatorial, sendo os mais relevantes: fatores psicossociais, fisiopatológicos e traumáticos. O boxe é considerado um fator traumático por ser um esporte de contato que impõe grande energia cinética no seu gestual esportivo, que pode afetar a face e, consequentemente, a ATM, com 10% dos atletas podendo sofrer uma lesão facial, representando uma possível predisposição à DTM. OBJETIVOS: Estimar a prevalência de sinais e sintomas para DTM em lutadores de boxe, verificar se o uso do protetor bucal altera a intensidade de sinais e sintomas da DTM e verificar a diferença de variação dos sinais e sintomas em lutadores de boxe amador ou profissional. METODOLOGIA: Estudo transversal, realizado em uma academia de boxe, na cidade de Salvador, Bahia, Brasil em Abril/2017. Lutadores de boxe foram avaliados pelo Índice Anamnésico de Fonseca. As variáveis foram analisadas através do teste t-Student e o nível de significância estabelecido foi de 5%. Seguiu as normas da Resolução 466/12, e obteve aprovação do Comitê de Ética em Pesquisa da Universidade Católica do Salvador (CAAE 64281616.8.0000.5628). RESULTADOS: 51% dos atletas não possuem DTM, 43,1% possuem DTM leve, 5,9% possuem DTM moderada, nenhum participante apresentou DTM severa. Atletas que participam de campeonatos apresentaram maior prevalência de sintomatologia para DTM que os que não participam (p<0,05). CONCLUSÃO: Houve associação entre participação em campeonatos e presença de DTM, demonstrando que atletas de competição apresentam predisposição ao desenvolvimento da disfunção. [AU]

INTRODUCTION: The temporomandibular disfunction (TMD) has multifactorial origin, being the most relevant: psychosocial factors, pathophysiological and traumatic. The Boxing is considered one traumatic factor for being a contact sport that imposes large expenditure of kinetic energy on sports sign, which could affect the face and, consequently, the TMJ, with 10% of the athletes could suffer a facial injury, representing a possible predisposition to TMD. OBJECTIVES: Estimate the prevalence of signs and symptons for TMD in boxers, check if the use of mouthguard chengs the intensity of signs and symptons of TMD, check the variation difference of the signs and symptons in amateurs and professional boxers. METHODOLOGY: cross-sectional study, accomplished in a Box gym, in the city of Salvador, Bahia, Brasil in April/2017. Boxers were evaluated by the Anamnesis Index of Fonseca. The variables were analyzed through the test t-Student and the level of meaningfulness established were from 5%. Followed the standards of the Resolution 466/12, and obteined approval from the Research Ethics Committee of the Universidade Católica do Salvador (CAAE 64281616.8.0000.5628). RESULTS: 51% from the athletes do not have TMD, 43,1% have light TMD, 5,9% have moderate TMD, none participant presented several TMD. Athletes that participate of championships presented more prevalence of simtomatology for TMD than the ones that do not participated (p<0,05). CONCLUSION: There was association between participation in championships and presence of TMD, demonstrating that athletes of competitions gift predisposition to develop disfunction. [AU]

Myofascial trigger points in patients with temporomandibular joint disc displacement with reduction: a cross-sectional study

Abstract Objective The objective of this retrospective study was to evaluate the impact of myofascial trigger points (MTrPs) in patients with articular disc displacement with reduction (DDWR) and to identify which clinical variables are associated with the concomitant presence of DDWR and MTrPs. Material and Methods 130 patients were selected that sought treatment due to joint pain, with ages ≥18 years, of both genders, with DDWR confirmed by magnetic resonance imaging. The sample was divided into two groups: Group 1, patients with DDWR and MTrPs (N=101); and Group 2, patients with DDWR and no MTrPs (N=29). Information on gender, age, pain duration, pain scores, and maximal interincisal distance (MID) were collected. The logistic regression model was used and the odds ratios (OR) was calculated (p<0.05). Results Group 1 presented statistically significant higher mean pain scores (p=0.007), and smaller MID (p=0.0268) than Group 2. OR were significant for the pain scores (1.429), MID (0.937) and gender (women) (2.810). Conclusions Patients with DDWR and MTrPs had increased pain scores and a MID decrease compared to patients with DDWR and no MTrPs. The variables pain scores, MID, and gender (women) showed a significant association with the concomitant presence of DDWR and MTrPs.

Magnetic resonance imaging-based temporomandibular joint space evaluation in temporomandibular disorders / 대한구강악안면방사선학회지

PURPOSE: Disc and condylar position were observed on MRIs of temporomandibular joint disorder patients and condylar position agreement between MRI and tranascranal radiography was evaluated. MATERIALS AND METHODS: MRI and transcranial radiographs of both TM joints from 67 patients with temporomandibular disorder were used. On MRI, the position and shape of disc and condylar position as anterior, middle, posterior was evaluated at medial, center, and lateral views. On transcranial radiographs, condylar position was evaluated using the shortest distance from condyle to fossa in anterior, superior, and posterior directions. RESULTS: 1. On MRI, 96 joints (71.6%) of 134 had anterior disc dispalcement with reduction and 38 joints (28.4%) without reduction. 2. Fourteen (14.6%) of 96 reducible joints showed anterior condylar position, 19 (19.8%) showed central position, 63 joints (65.6%) showed posterior position. Two joints (5.3%) of 38 non-reducible joints showed anterior condylar position, while 9 (23.7%) showed central position, and 27 (71.1%)-posterior position. 3. In 85 joints (63.4%) of 134, the transcranial condylar position agreed with that of the central MRI view, 10 joints (7.5%) with that of medial, 16 joints (11.9%) with that of lateral, and 23 joints (17.2%) disagreed with that of MRI. CONCLUSION: On MRI, most of the reducible and non-reducible joints showed posterior condylar position. Transcranial radiographs taken with machine designed for TMJ had better agreement of condylar position with that of MRI. Extremely narrow joint spaces or very posterior condylar positons observed on transcranial radiographs had a little more than fifty percent agreement with those of MRIs.

MRI findings of the antero-superior attachment of the disc in TMJ internal derangement / 대한구강악안면방사선학회지

PURPOSE: To describe the MRI findings of the antero-superior attachment of the disc in patients with internal derangement. MATERIALS AND METHODS: One hundred fifty-six MR images from 40 normal subjects and 55 abnormal subjects were classified into three study groups of normal, anterior disc displacement with reduction and anterior disc displacement without reduction. On both closed- and open-mouth proton density sagittal images, the depiction of the antero-superior attachment of the disc and its demarcation from the disc were evaluated in three cuts of lateral, central and medial one thirds of the condyle. RESULTS: The depiction of antero-superior attachment was more frequent by the order of normal, anterior disc displacement with reduction and anterior disc displacement without reduction groups, and the significant differences were found on lateral cut of the closed images and lateral and central cuts of the open images. In study for the demarcation between the antero-superior attachment and the disc the lateral cut of the closed images and all three cuts of the open images showed significant differences. CONCLUSION: Open images are useful to show the difference in depiction of the antero-superior attachment of the disc among the TMJ groups.

The relationship between clinical and MRI findings in patients with TMJ disoders at St. Vincent's hospital