scholarly journals The impact of occlusal support on temporomandibular disorders: a literature review

2021 ◽  
pp. 201010582110237
Author(s):  
Minh Son Nguyen ◽  
Mare Saag ◽  
Triin Jagomägi ◽  
Quang Hai Nguyen ◽  
Ülle Voog-Oras
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Aetiological Factor ◽  
Posterior Teeth ◽  
Number Of Teeth ◽  
Osseous Changes ◽  
Masticatory System ◽  
The Impact

Temporomandibular disorders are a multifactorial disease. Occlusal support and the number of teeth in dentition have significant effects on the masticatory system. The current study aims to review the role of occlusal support in association with findings of temporomandibular disorders. Data sources were PubMed, Web of Science and Google Scholar, with 1411 citations published over the period 1992–2019. The selection criteria stipulated that articles must have reported the association between the number of teeth, occlusal unit, occlusal support and temporomandibular disorders. A total of 15 full-text articles was finally accessed for eligibility in the current review. The studies on temporomandibular disorders were collected from various sources, including articles reporting temporomandibular disorder symptoms ( n=1), temporomandibular disorder signs ( n=5), temporomandibular joint osseous changes ( n=1), temporomandibular joint dysfunction using the Helkimo index ( n=2), and temporomandibular disorder classification ( n=6). Of these articles, significant associations were found between: the number of missing teeth and temporomandibular disorders ( n=5); the number of occlusal units and occlusal supports and temporomandibular disorders ( n=3); the position of the lost occlusal units and temporomandibular disorders ( n=1). Loss of the occlusal unit has more impact on temporomandibular disorders than the loss of posterior teeth. The total loss of unilateral occlusal support seems to be an aetiological factor for temporomandibular disorders, and maintenance of balanced posterior occlusal support has a role in the prevention and management of temporomandibular disorders.

Asociación entre hábitos parafuncionales de la cavidad bucal y los transtornos temporomandibulares en adolescentes

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
Gabriel Muñoz Quintana
Keyword(s):  
Oral Cavity ◽  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Neuromuscular System ◽  
Jaw Movements ◽  
Nail Biting ◽  
Palabras Clave ◽  
Masticatory System ◽  
Objective Being

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).

scholarly journals Replacement of Missing Anterior Teeth in a Patient with Temporomandibular Disorder

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Satheesh B. Haralur ◽  
Omar Saeed Al-Shahrani
Keyword(s):  
Case Report ◽  
Temporomandibular Joint ◽  
Temporomandibular Disorder ◽  
Psychological Trauma ◽  
Prosthesis Design ◽  
Mandibular Movement ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
Anterior Guidance

The loss of anterior teeth leads to extreme psychological trauma, along with functional and esthetic debilitations. Healthy anterior teeth play an important role of protecting the posterior teeth during excursive mandibular movement. Loss of anterior teeth induces posterior interference with extended disocclusion time. Posterior disocclusion is critical to remove the harmful force on the teeth temporomandibular joint and eliminate muscle hypertonicity. Occlusal interference is considered as contributing factor to temporomandibular disorder (TMD) symptoms. Prosthesis design should eliminate deleterious tooth contacts. Establishing optimum anterior guidance is a key to establishing harmonious functional occlusion in addition to the correction of the esthetic and phonetic disabilities. This case report explains the steps involved in the rehabilitation of the TMD patient with loss of maxillary anterior teeth.

Stages of the formation of temporary and permanent occlusion and the impact of early tooth extraction on the dentition state. Literature review

2019 ◽  
pp. 22-24
Author(s):  
G.A. Murachueva ◽  
I.M. Rasulov ◽  
S.G. Gusenov
Keyword(s):  
Literature Review ◽  
Temporomandibular Joint ◽  
Tooth Extraction ◽  
Physiological State ◽  
Review Of The Literature ◽  
Full Development ◽  
Permanent Occlusion ◽  
The Impact

A review of the literature on the stages of the formation of temporary and permanent occlusion has been performed. This stages play an important role not only for the full development of the maxillofacial apparatus, temporomandibular joint, but also the whole organism. The role of early tooth extraction in the formation of the physiological state of the dentoalveolar system is considered. The conclusion is drawn about the need for a deeper study of this problem in the structure of general dental morbidity.

scholarly journals Temporomandibular Disorders and Bruxism Prevalence in a Portuguese Sample

2021 ◽  
Vol 5 (1) ◽  
pp. 37
Author(s):  
João Belo ◽  
André Almeida ◽  
Paula Moleirinho-Alves ◽  
Catarina Godinho
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Masticatory Muscles ◽  
Diagnostic Aspects ◽  
Relevant Role

Temporomandibular disorder (TMD) encompasses a set of disorders involving the masticatory muscles, the temporomandibular joint and associated structures. It is a complex biopsychosocial disorder with several triggering, predisposing and perpetuating factors. In the etiology of TMD, oral parafunctions, namely bruxism, play a relevant role. The study of bruxism is complicated by some taxonomic and diagnostic aspects that have prevented achieving an acceptable standardization of diagnosis. The aim of this study was to analyze the prevalence of temporomandibular disorders and bruxism in a Portuguese sample.

scholarly journals Associação entre a sintomatologia dolorosa e a disfunção temporomandibular

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Wyllka Cyntya Galvão da Silva ◽  
Karolinne Domingos Medeiros ◽  
Eloisa Cesário Fernandes ◽  
Sandja Gabriela Oliveira ◽  
Caio Rodrigues Maia ◽  
...  
Keyword(s):  
Diagnostic Criteria ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Epidemiologic Study ◽  
Masticatory Muscles ◽  
Degenerative Disorders ◽  
International Conference On Bioinformatics ◽  
Research Diagnostic Criteria

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.

scholarly journals Association of occlusal wear facets in patients with temporomandibular disorders

2020 ◽  
Vol 16 (12) ◽  
pp. 1060-1068
Author(s):  
Faazila Fathima ◽  
Keyword(s):  
Early Diagnosis ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Tooth Wear ◽  
P Value ◽  
Age Group ◽  
Posterior Teeth ◽  
Index Data ◽  
Occlusal Wear ◽  
High Prevalence

Occlusal changes were important factors in temporomandibular disorder (TMD). It is of interest to evaluate the association of occlusal wear facets in TMD patients. We used a dataset of 49 patients with and without TMD for this study. Occlusal wear facets were evaluated using Smith and Knight tooth wear index. Data shows that teeth wear was present more in patients with TMD (55%). The age group 26-40 years showed high prevalence of teeth wear (grade1) in TMD patients (P value = 0.034). TMD was present more in females than males. Female (54%) patients with TMD showed more teeth wear compared to males. Most patients with TMD showed posterior teeth wear (61%) than generalized teeth wear. Thus, association was present between occlusal teeth wear and TMD patients especially in the age group of 26-40 years. Hence, proper evaluation of occlusal factors will aid in early diagnosis of TMDs.

scholarly journals Dental malocclusion is not related to temporomandibular joint clicking: a logistic regression analysis in a patient population

2013 ◽  
Vol 84 (2) ◽  
pp. 310-315 ◽  
Author(s):  
Daniele Manfredini ◽  
Giuseppe Perinetti ◽  
Luca Guarda-Nardini
Keyword(s):  
Logistic Regression ◽  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Open Bite ◽  
Final Model ◽  
Posterior Crossbite ◽  
The Difference ◽  
Contact Position ◽  
Dental Malocclusion

ABSTRACT Objectives: To assess the association of several dental malocclusion features with temporomandibular joint (TMJ) click sounds in a population of temporomandibular disorder (TMD) patients. Materials and Methods: Four hundred forty-two TMD patients (72% female; 32.2 ± 5.7 years, range 25–44 years) were divided into a TMJ clicking and a no-TMJ clicking group, based on the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) assessment. Seven occlusal features were recorded for each patient: (1) posterior crossbite, (2) overbite, (3) open bite, (4) overjet, (5) mediotrusive and (6) laterotrusive interferences and (7) retruded contact position to maximum intercuspation (RCP-MI) slide length. A logistic regression model was created to estimate the association of occlusal features with TMJ clicking. Results: The difference between the groups as for the prevalence of the various occlusal features was generally not statistically significant, with minor exceptions. Mediotrusive interferences (P  =  .015) and RCP-MI slide ≥2 mm (P  =  .001) were the two occlusal features that were associated with the probability of having TMJ clicking, even if the adjusted odds ratios for TMJ clicking were low for both variables (1.63 and 1.89, respectively). Moreover, the amount of variance in the prevalence of TMJ clicking that was predicted by the final model was as low as 4.5% (R2  =  0.045). Conclusions: Findings from the present investigation suggested that in a population of TMD patients, the contribution of dental malocclusion features to predict TMJ click sounds is minimal with no clinical relevance.

scholarly journals The relationship of occlusal disharmonies and symptoms of temporomandibular disorders

2006 ◽  
Vol 134 (9-10) ◽  
pp. 380-385 ◽  
Author(s):  
Slobodan Dodic ◽  
Darinka Stanisic-Sinobad ◽  
Miroslav Vukadinovic
Keyword(s):  
Temporomandibular Disorders ◽  
Function Analysis ◽  
Temporomandibular Disorder ◽  
Control Group ◽  
Asymptomatic Group ◽  
Posterior Teeth ◽  
Average Value ◽  
Significant Difference ◽  
Relationship Of ◽  
Contact Position

Introduction: The influence of occlusal condition on the onset of temporomandibular disorder (TMD) has been strongly debated for many years and is still the source of controversy. Until 1980s, the occlusal factors such as the presence of uncured malocclusions, discrepancies between intercuspal position (ICP) and retruded contact position (RCP) greater than two millimeters, occlusal abnormality, particularly mediotrusion and retrusion, and loss of posterior teeth were considered the primary causes of TMD. Objective: The objective of our study was to find correlation of occlusion disharmonies (difference between ICP and RCP) and present sings and symptoms of TMD. Method: The study involved 60 subjects between 18 and 26 years of age who were divided in two groups. The study group consisted of 30 subjects between 18 and 26 years of age with sings and symptoms of temporomandibular disorders (TMD). TMD was confirmed according to Helkimo index. An average value of Helkimo index in this group was 1. The control group included 30 subjects between 20 and 25 years of age without TMD sings and symptoms. An average value of Helkimo index in this group was 0. The function analysis of cinematic centers position in RCP and ICP was performed in each subject using the computer pantograph Arcus-Digma (KaVo EWL GmbH, Leutkirch, Germany). Results: The results of our study showed that the translation tracing of cinematic points from RCP to ICP was significantly different in TMD subjects and asymptomatic group (p>0.16). In addition, the study revealed that 53.4 % of subjects with sings and symptoms of temporomandibular disorders had marked translation in the lower temporomandibular joint (0.61-1.2 mm) what directed to intracapsular disorders. Conclusion: The results of our study suggested significant difference of RCP and ICP between subjects with sings and symptoms of the temporomandibular disorders and subjects without sings and symptoms.

scholarly journals Automated segmentation of articular disc of the temporomandibular joint on magnetic resonance images using deep learning

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Shota Ito ◽  
Yuichi Mine ◽  
Yuki Yoshimi ◽  
Saori Takeda ◽  
Akari Tanaka ◽  
...  
Keyword(s):  
Neural Network ◽  
Deep Learning ◽  
Magnetic Resonance ◽  
Convolutional Neural Network ◽  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Semantic Segmentation ◽  
Magnetic Resonance Images ◽  
Articular Disc

AbstractTemporomandibular disorders are typically accompanied by a number of clinical manifestations that involve pain and dysfunction of the masticatory muscles and temporomandibular joint. The most important subgroup of articular abnormalities in patients with temporomandibular disorders includes patients with different forms of articular disc displacement and deformation. Here, we propose a fully automated articular disc detection and segmentation system to support the diagnosis of temporomandibular disorder on magnetic resonance imaging. This system uses deep learning-based semantic segmentation approaches. The study included a total of 217 magnetic resonance images from 10 patients with anterior displacement of the articular disc and 10 healthy control subjects with normal articular discs. These images were used to evaluate three deep learning-based semantic segmentation approaches: our proposed convolutional neural network encoder-decoder named 3DiscNet (Detection for Displaced articular DISC using convolutional neural NETwork), U-Net, and SegNet-Basic. Of the three algorithms, 3DiscNet and SegNet-Basic showed comparably good metrics (Dice coefficient, sensitivity, and positive predictive value). This study provides a proof-of-concept for a fully automated deep learning-based segmentation methodology for articular discs on magnetic resonance images, and obtained promising initial results, indicating that the method could potentially be used in clinical practice for the assessment of temporomandibular disorders.

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