scholarly journals Skeletal Divergence and Condylar Asymmetry in Patients with Temporomandibular Disorders (TMD): A Retrospective Study

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Maria Francesca Sfondrini ◽  
Letizia Bolognesi ◽  
Mario Bosco ◽  
Paola Gandini ◽  
Andrea Scribante

Introduction. This study was aimed at evaluating the association between vertical skeletal patterns, condylar height symmetry, and temporomandibular disorders in adults. Methods. The study sample consisted of 200 patients (ages 18–30 years old) retrospectively recruited: 100 with temporomandibular disorders (TMD) and 100 without TMD (control), diagnosed by Diagnostic Criteria for the Temporomandibular Disorders (DC/TMD). For each subject, skeletal divergence was assessed on lateral cephalograms, and condylar height symmetry was evaluated by orthopantomography (Habets’ method). Results. Subjects with temporomandibular disorders showed a strong association with condylar asymmetry ( p < 0.0001 ) and, for the skeletal pattern variables, hyperdivergence ( p < 0.001 ). A correlation with the female sex was also found ( p < 0.04 ), while there was no difference in terms of age in the 2 groups ( p > 0.29 ). Conclusions. Although it does not imply a direct cause-and-effect relationship, the present study suggests condylar asymmetry and hyperdivergent skeletal pattern are more likely to be associated with a higher risk of temporomandibular disorder joint diseases in adult patients.

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Wyllka Cyntya Galvão da Silva ◽  
Karolinne Domingos Medeiros ◽  
Eloisa Cesário Fernandes ◽  
Sandja Gabriela Oliveira ◽  
Caio Rodrigues Maia ◽  
...  

Introdução: A Disfunção Temporomandibular (DTM) é um quadro patológico que afeta o sistema estomatognático e, frequentemente, acompanhada de dor. Objetivos: Aferir o nível de dor dos pacientes portadores de DTM e a prevalência de sintomatologia articular e muscular. Percebeu-se que a relação entre a origem da DTM e a sintomatologia dolorosa é pouco relatada na literatura. Materiais e Métodos: Trata-se de um estudo descritivo, observacional de corte transversal, desenvolvido com 30 pacientes com DTM, diagnosticado pelo Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). A amostra foi determinada pelas estimativas de atendimento. A associação entre a sintomatologia e a origem da DTM foram verificadas através do teste qui-quadrado, com intervalos de confiança (95%). Foi usada uma ficha clínica para a coleta de dados com idade, gênero e nível da dor, que foi aferido através da Escala Visual Analógica de dor. Resultados: Constatou-se que 26 pacientes eram do sexo feminino e 4 do sexo masculino. Quinze apresentaram idade inferior a 36,5 anos, e os outros uma idade superior a esta. Quanto a origem da DTM, 19 tinham desordem articular e 11 muscular. A categoria moderada foi o nível mais prevalente, seguida do intenso. Determinou-se que não houve associação estatisticamente significante entre as variáveis deste estudo com a DTM. Conclusão: Constatou-se que, os fatores etiológicos analisados isoladamente não influenciam de forma única no desenvolvimento da DTM, mas poderão atuar em conjunto com outros fatores, já que a sua causa é multifatorial.Descritores: Dimensão Vertical; Boca Edêntula; Dor Facial; Síndrome da Disfunção da Articulação Temporomandibular.ReferênciasDworkin SF, LeResche L. Research diagnostic criteria for temporomandibular disorders: review, criteria, examinations and specifications, critique. J Craniomandib Disord. 1992;6(4):301-55.Gonçalves DAG, Bigal ME, Jales LCF, Camparis CM, Speciali JG. Headache and symptoms of temporomandibular disorders: an epidemiologic study. Headache. 2010;50(2):231-41.Piccin CF, Pozzebon D, Chiodelli L, Boufleus J, Pasinato F, Corrêa ECR. Aspectos clínicos e psicossociais avaliados por critérios de diagnóstico para disfunção temporomandibular. Revista Cefac. 2016;18(1):113-19.Winocur E, Emodi-Perlman A. Occlusion, orthodontic treatment and temporomandibular disorders: myths and scientific evidences. in: Orthodonthics-basis aspects and clinical considerations. In Tech. 2012.Jorge JMS, Dini C, Santos L, Camara de Bem SH, Custodio W. Associação entre dimensão vertical de oclusão e transtornos temporomandibulares. ClipeOdonto – UNITAU. 2016;8(1):44- 50.Bayma PTC, Feltrin PP, Dias CAS, Costa JF, Laganá DC, Inoue RT. Temporomandibular disorders in otolaryngology patients. RGO (Porto Alegre). 2010;58(3):313-17.Martinez JE, Grassi DC, Marques LG. Análise da aplicabilidade de três instrumentos de avaliação de dor em distintas unidades de atendimento: ambulatório, enfermaria e urgência. Rev Bras Reumatol. 2011;51(4):299-308.Slade GD, Ohrbach R, Greenspan JD, Fillingim RB, Bair E, Sanders AE et al. Painful temporomandibular disorder: decade of discovery from OPPERA studies. J Dental Res. 2016; 95(10):1084-92.Rauhala K., Oikarinen KS, Raustia AM. Role of temporomandibular disorders (TMD) in facial pain: occlusion, muscle and TMJ pain. Cranio. 1999;17(4):254-61.Manfredini D, Favero L, Gregorini G, Cocilovo F, Guarda-Nardini L. Natural course of temporomandibular disorders with low painrelated impairment: a 2-to-3-year follow-up study. J Oral Rehabil. 2013;40(6):436-42.Freitas LS. Associação da disfunção Temporomandibular com o polimorfismo 102T-C do gene receptor da serotonina HTR2A [tese]. São José do Rio Preto: Faculdade de Medicina do São José do Rio Preto – FAMERP; 2011.Tanaka E, Detamore MS, Mercuri LG. Degenerative disorders of the temporomandibular joint: etiology, diagnosis, and treatment. J Dent Res. 2008;87(4):296-307.Lopes PRR, Campos PSF, Nascimento RJM. Dor e inflamação nas disfunções temporomandibulares: revisão de literatura dos últimos quatro anos. R Ci med biol. 2011;10(3):317-25.Wang X, Guo H, Wang Y, Yi X. The effects of estrogen on cytoplasmic ca2+ concentration of masticatory muscles myoblast in acid condition. 5th International Conference on Bioinformatics and Biomedical Engineering (iCBBE); 10-12 May 2011; Wuhan, China. Anais. Disponível em http://www.icbbe.org/2011/Proceeding2010.aspx.Cairns BE. Pathophysiology of TMD Pain—Basic Mechanisms and Their Implications for pharmacotherapy. J Oral Rehabil. 2010; 37(6):391-410.Portinho CP, Razera MV, Splitt BI, Gorgen ARH, Faller GJ, Collares MVM. Apresentação clínica inicial em pacientes com disfunção Temporomandibular. Rev Bras Cir Craniomaxilofac. 2012;15(3):109-12.


Revista CEFAC ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 175-181 ◽  
Author(s):  
Carolina Marciela Herpich ◽  
Fabiano Politti ◽  
Cid Andre Fidelis de Paula Gomes ◽  
Igor Phillip dos Santos Gloria ◽  
Ana Paula Amaral ◽  
...  

ABSTRACT Purpose: to evaluate the pain threshold upon palpation of the masticatory muscles in women with temporomandibular disorder (TMD) according to the Research Diagnostic Criteria of Temporomandibular Disorders (RDC/TMD). Methods: a cross-sectional study was conducted involving the evaluation of pain threshold upon palpation of the extraoral muscles (temporal, masseter, posterior mandibular region, submandibular region) and intraoral muscles (lateral pterygoid area and temporal tendon) in women using the RDC/TMD clinical examination. Results: 60 women were evaluated. Statistically significant differences were found among the muscles evaluated regarding the pain threshold. The lateral pterygoid area, bilaterally, had the lowest pain threshold, followed by the masseter and temporal muscles. Conclusion: this study suggests that the lateral pterygoid muscle, bilaterally, has the lowest pain threshold upon palpation among the masticatory muscles, followed by masseter and temporal muscles, in women with TMD, according to the RDC/TMD evaluation.


CoDAS ◽  
2014 ◽  
Vol 26 (5) ◽  
pp. 389-394 ◽  
Author(s):  
Lilian Gerdi Kittel Ries ◽  
Maylli Daiani Graciosa ◽  
Daiane Lazzeri De Medeiros ◽  
Sheila Cristina Da Silva Pacheco ◽  
Carlos Eduardo Fassicolo ◽  
...  

Purpose:This study aimed to establish the prevalence of pain in the craniomandibular and cervical spine region in individuals with Temporomandibular Disorders (TMD) and to analyze the effects of these disorders on the bilateral activation of anterior temporalis (AT) and masseter (MA) muscles during the masticatory cycle.Methods:The participants were 55 female volunteers aged 18–30 years. The presence of TMD and craniomandibular and cervical spine pain was evaluated by applying the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) questionnaire and using a combination of tests for the cervical region. The muscle activity of AT and MA during the masticatory cycle was assessed using the symmetry and antero-posterior coefficient indices.Results:The AT activity during the masticatory cycle is more asymmetric in individuals with TMD. The craniomandibular pain, more prevalent in these individuals, influenced these results.Conclusion:Individuals with TMD showed changes in the pattern activity of AT. The craniomandibular nociceptive inputs can influence the increase in asymmetry of the activation of this muscle.


2015 ◽  
Vol 5 ◽  
pp. 156-161
Author(s):  
Carlos Alexandre Camara ◽  
Adilson Santos Torreao

Adult patients with a multitude of problems require seamless integration of interdisciplinary protocols. This article presents a case of an adult female who reported with temporomandibular disorders, a crossbite and a Class III skeletal pattern. An interdisciplinary approach using expansion and surgery was used to treat the condition, followed by an esthetic/restorative protocol, achieving excellent results.


2020 ◽  
Vol 11 (SPL3) ◽  
pp. 931-936
Author(s):  
John Rozar Raj ◽  
Uma Maheswari ◽  
Nivedhitha M S

Temporomandibular disorder is a collective term for a group of musculoskeletal and neuromuscular conditions. Patients will complain of pain in the TMJ region and the fatigue of the Cranio cervico facial muscles. The aim of the study was to assess the prevalence of TMD in patients visiting a private dental college. This was a retrospective study. Samples were collected from June 2019 to March 2020. The sample size was 55 patients. Data of Temporomandibular disorders were collected. Excel tabulation was done. Chi-Square test was performed and results were obtained using SPSS software. Out of 55 patients, the prevalence of group I of RDC criteria was 34.5%, prevalence of group II of RDC criteria was 62% and the prevalence of group III of RDC criteria was 3.5%. From the present study, it can be concluded that the prevalence of TMD in patients visiting a private dental College was very less. Group II of our RDC criteria was found to be high, with a percentage of 62%.


Revista Dor ◽  
2016 ◽  
Vol 17 (1) ◽  
Author(s):  
Claudia Branco Battistella ◽  
Thatiana Bastos Guimarães ◽  
Camila Leite Quaglio ◽  
Mariana Brandão Ferreira-Cabrini ◽  
Dinamar Aparecida Gaspar-Martins ◽  
...  

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
Gabriel Muñoz Quintana

La musculatura del sistema masticatorio y la articulación temporomandibular (ATM) están protegidos por reflejos nerviosos básicos y sistema neuromuscular a través de la coordinación de fuerzas musculares, todo lo que produce sobrecarga muscular repetitiva como los hábitos parafuncionales (HPF) pueden ocasionar trastornos temporomandibulares (TTM)1. Los HPF se caracterizan por movimientos anormales a la función mandibular normal sin objetivo funcional, al estar alterados constituyen una fuente productora de fuerzas traumáticas caracterizadas por dirección anormal, intensidad excesiva y repetición frecuente y duradera (Rolando Castillo Hernández, 2001)4. El objetivo del estudio fue identificar la asociación entre la presencia de hábitos parafuncionales de la cavidad bucal y los TTM en adolescentes de la ciudad de Puebla. Estudio observacional descriptivo. Se incluyeron 258 adolescentes, 132 (51.2%) mujeres y 126 (48.8%) hombres, con una edad promedio de 12.5±.73 y quienes fueron diagnosticados con los CDI/TTM y los HPF fueron auto-reportados por los pacientes. Se encontró una prevalencia de los TTM del 39.9% y una prevalencia de HPF del 86%. Los HPF más frecuentemente reportados fueron la succión labial y la onicofagia. Se encontró una asociación significativa (x2=7.31, p=0.007) entre los hábitos parafuncionales y los TTM en adolescentes. Palabras clave: Trastornos temporomandibulares, hábitos parafuncionales, adolescentes, articulación temporomandibular. Abstract The muscles of the masticatory system and temporomandibular joint (TMJ) are protected by basic nerve reflex and neuromuscular system through the coordination of muscle forces, all that repetitive muscle overload occurs as habit parafunctional (HPF) can cause temporomandibular disorder TMD)1. The characteristics of HPF are abnormal jaw movements without a functional objective. Being the jaw movements altered, they constitute a source of traumatic forces with an abnormal direction, excessive intensity and long-lasting and frequent duration. (Rolando Hernandez Castillo 2001)4. Objective: was to identify the association between the presences of parafunctional habits of the oral cavity and TMD in adolescents in the Puebla city in Mexico. Material and methods: Is a observational study, we included 258 adolescents 132 (51%) females and 126 (48.8%) were men, mean age 12.5±.73 and who were diagnosed with CDI/TTM and HPF were self- reported by patients. Results: The prevalence of TMD was 39.9% and a prevalence of 86% HPF. The most frequently reported HPF were lip sucking and nail biting. We found a significant association (x2= 7.31, p = 0,007) between HPF and TMD in adolescents. Key words: Parafunctional habits of oral cavity, temporomandibular disorders, temporomandibular joint. (Odontol Pediatr 2011;10(2): 90-94).


2021 ◽  
pp. 105566562199610
Author(s):  
Buddhathida Wangsrimongkol ◽  
Roberto L. Flores ◽  
David A. Staffenberg ◽  
Eduardo D. Rodriguez ◽  
Pradip. R. Shetye

Objective: This study evaluates skeletal and dental outcomes of LeFort I advancement surgery in patients with cleft lip and palate (CLP) with varying degrees of maxillary skeletal hypoplasia. Design: Retrospective study. Method: Lateral cephalograms were digitized at preoperative (T1), immediately postoperative (T2), and 1-year follow-up (T3) and compared to untreated unaffected controls. Based on the severity of cleft maxillary hypoplasia, the sample was divided into 3 groups using Wits analysis: mild: ≤0 to ≥−5 mm; moderate: <−5 to >−10 mm; and severe: ≤−10 mm. Participants: Fifty-one patients with nonsyndromic CLP with hypoplastic maxilla who met inclusion criteria. Intervention: LeFort I advancement. Main Outcome Measure: Skeletal and dental stability post-LeFort I surgery at a 1-year follow-up. Results: At T2, LeFort I surgery produced an average correction of maxillary hypoplasia by 6.4 ± 0.6, 8.1 ± 0.4, and 10.7 ± 0.8 mm in the mild, moderate, and severe groups, respectively. There was a mean relapse of 1 to 1.5 mm observed in all groups. At T3, no statistically significant differences were observed between the surgical groups and controls at angle Sella, Nasion, A point (SNA), A point, Nasion, B point (ANB), and overjet outcome measures. Conclusions: LeFort I advancement produces a stable correction in mild, moderate, and severe skeletal maxillary hypoplasia. Overcorrection is recommended in all patients with CLP to compensate for the expected postsurgical skeletal relapse.


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