Measurement of mandibular movements in patients with temporomandibular disorders and in asymptomatic subjects (original) (raw)
Related papers
Relationship of slightly limited mandibular movements to temporomandibular disorders
Brazilian Dental Journal, 2004
Mandibular movements have been analyzed extensively in the past for prosthodontic reasons, and more recently to study the function of the masticatory system. This study investigated the range of mandibular movements in a young male population, and analyzed the difference in range of mouth opening, right and left lateral movements, and protrusive movement between asymptomatic subjects (control group) and patients with clinical diagnoses of temporomandibular disorders. A total of 180 subjects, aged 19-28 years, were included in the study. The TMD sample comprised 90 patients (30 patients with muscle disorders; 30 patients with disc displacement with reduction; 30 patients with muscle disorders and disc displacement with reduction) and was compared with 90 healthy control subjects. All participants were evaluated by the attending dentist at baseline with a complete physical examination and history questionnaire, which included the Research Diagnostic Criteria for Temporomandibular Diso...
Correlation between severity of temporomandibular disorder and mandibular range of motion
Journal of Bodywork and Movement Therapies, 2014
opening (rs Z À0.023, p Z 0.822), passive mouth opening (rs Z À0.026, p Z 0.803), left lateral excursion (rs Z 0.125, p Z 0.231), right lateral excursion (rs Z 0.087, p Z 0.406) or protrusion (rs Z À0.148, p Z 0.157). Moreover, no statistically significant differences among severity groups were found (p > 0.05). Based on the findings of the present study, the severity of signs and symptoms of TMD was not associaed with mandibular range of motion. ª
2015
The aim of this study was to establish reference values for mandibular movements in 10- to 15-year-olds without dysfunction and compare these values to those in patients of the same age with tempromandibular disorders (TMD) and those found previously in a group of children younger than 11 years old without TMD. Children of both genders who visited the Department of Comprehensive Pediatric Dentistry at Buenos Aires University in 2013 and whose parents or guardians provided consent were evaluated using TMD/RDC by standardized pediatric dentists (Kappa 0.88). Three groups were formed according to diagnostic summary: Group C, without TMD; Group Ia, with myofascial pain, and Group Ib, pain with limited mouth opening. The following variables were analyzed: age, gender and mandibular movements. The sample included 169 patients aged 12.5±1.76 years, of whom 62.36% did not have TMD (C) while 37.27% were diagnosed with muscle disorder (29.58% Ia and 7.69% Ib). For Group C, the following value...
In this clinical study, pre-and post-rehabilitation changes in intraborder mandible movements, chewing cycles, masticatory efficiencies, and borders of the chewing area of patients with unilateral muscular disorders (MD) (n = 20) or unilateral disc derangement disorders (DDD) (n = 20) of temporomandibular disorder (TMD) were observed and compared with healthy individuals with full dentition (n = 20) (48 female, 12 male; mean age: 28). The MD patients received stabilization splints and the DDD patients, anterior positioning splints for six weeks. Symptoms, such as muscle pain, TMJ pain, headache, chewing difficulty, and maximum mouth opening, showed significant improvements after splint therapy for both MD (p = 0.000) and DDD (p = 0.000) patients, but lateral excursion and protrusion were not significantly changed (p > 0.05). Chewing efficacy and chewing cycles improved significantly (p < 0.05) in both the MD (p < 0.05) and DDD (p < 0.05) groups, but only the MD group was comparable to the control group after treatment. Pre-and post-rehabilitation chewing cycles along the frontal plane on both sides in the MD group were similar to the control group. Considering the majority of the improvements in the diagnostic measures, patients with MD and DDD may benefit from occlusal splint therapy.
Efficiency and Jaw Movement Before and After Temporomandibular Disorder Treatment.
In this clinical study, pre-and post-rehabilitation changes in intraborder mandible movements, chewing cycles, masticatory efficiencies, and borders of the chewing area of patients with unilateral muscular disorders (MD) (n=20) or unilateral disc derangement disorders (DDD) (n=20) of temporomandibular disorder (TMD) were observed and compared with healthy individuals with full dentition (n=20) (48 female, 12 male; mean age: 28). The MD patients received stabilization splints and the DDD patients, anterior positioning splints for six weeks. Symptoms, such as muscle pain, TMJ pain, headache, chewing difficulty, and maximum mouth opening, showed significant improvements after splint therapy for both MD (p=0.000) and DDD (p=0.000) patients, but lateral excursion and protrusion were not significantly changed (p>0.05). Chewing efficacy and chewing cycles improved significantly (p<0.05) in both the MD (p<0.05) and DDD (p<0.05) groups, but only the MD group was comparable to the control group after treatment. Pre-and post-rehabilitation chewing cycles along the frontal plane on both sides in the MD group were similar to the control group. Considering the majority of the improvements in the diagnostic measures, patients with MD and DDD may benefit from occlusal splint therapy.
Journal of Oral Rehabilitation, 2020
Background: The nature of certain musculoskeletal impairments associated with temporomandibular disorders (TMD) is unclear. Understanding impairments within TMD subgroups is important to guide management. Objectives: Characterise local musculoskeletal impairments in adults with persistent TMD. Methods: PubMed, EMBASE, CINAHL, Scopus, Web of Science and Cochrane databases were searched from inception to 12 January 2020. Bibliographies were searched for additional articles, including grey literature. Case-control and interventional studies reporting temporomandibular range of motion (ROM), muscle function (MF) or proprioception in TMD and control groups were included. Risk of bias was assessed using SIGN checklist for case-control studies. Results were pooled using random-effects model. Confidence in cumulative evidence was determined using American Academy of Neurology guidelines. Results: Sixty-six studies were included, most rated moderate risk of bias. Twelve primary outcomes were assessed, with partial scope for meta-analysis. Significant reductions were found for active maximal mouth opening (P < .00001, MD=−4.65 mm), protrusion (P < .0001, MD=−0.76 mm) and maximum bite force (P < .00001) in TMD versus controls. Subgroup analysis scope was limited. Reduced AMMO was found in myogenic TMD subgroups versus controls (P = .001, MD= −3.28 mm). Few studies measured proprioception, with high methodological variability. Confidence in cumulative evidence ranged from high to very low. Conclusion: ROM and bite force impairments accompany TMD. Insufficient data were available to investigate impairments within TMD subgroups. Implications: Several musculoskeletal impairments have been identified, which may guide clinical management of TMD. Lack of subgroup data, and data for proprioception and MF, highlights future direction for research.
Мandibular Range of Motion and Its Relation to Temporomandibular Disorders
Scripta Scientifica Medicinae Dentalis, 2015
INTRODUCTION: One of the most important signs and symptoms of temporomandibular disorders (TMD) is deviation or restriction in the mandibular range of motion. Limited or increased movement is considered as a sign of dysfunction, so measurement and evaluation of mandibular movement ranges are considered important parameters within the clinical examination and a significant component in the treatment and follow up of the temporomandibular disorders. MATERIAL AND METHODS: A total of 34 articles are included in this comprehensive review of the relevant studies on mandibular range of motion related to temporomandibular disorders. This review provides summarized clinical and cephalometric analyses focused on the three planes of the mandibular range of motion used in all classifications and diagnostic criteria for temporomandibular disorders. RESULTS AND CONCLUSION: The majority of the studies show variations in the degree of mandibular movements in patients with TM pathology. This review of the literature presents a synthesized version of the basic parameters of the mandibular movements that can be considered in the diagnosis of temporomandibular disorders in accordance with the postulates of the relevant research and diagnostic criteria.
Journal of Medical Science
Introduction. During the diagnostic process, the clinical examination of the masticatory system combined with jaw movement measurements can indicate the presence of temporomandibular disorders (TMD) symptoms. Aim. The aim of the present study was to determine the presence of clinical symptoms of TMD in a group of subjects aged 19–27 years and to analyze the measurable parameters obtained from examinations carried out using the Arcus®digma.Material and methods. Eighty four dentate subjects from 19 to 27 years were recruited from students. Objective signs were studied with Helkimo Anamnetic index (Ai) and the subjective symptoms were evaluated with Gsellmann’s Occlusal Index (OI). Functional examination of the masticatory system was performed using Helkimo Clinical Dysfunction index (Di). Pain symptoms were determined in clinical examination using visual analogue scale. Software of Arcus®digma allowed the analysis of Bennett’s angle and movement, the horizontal condylar inclination, r...
Clinical study on head and jaw position of patients with muscle temporomandibular disorder
Revista Dor, 2016
BACKGROUND AND OBJECTIVES: Temporomandibular disorder is a collective term encompassing a wide range of clinical orofacial joint and muscle problems. The stomatognatic system is part of the postural system, so changes in one system may interfere with the other. This study aimed at observing whether there is change in jaw and head position before and after temporomandibular disorder treatment. METHODS: Participated in the study 16 volunteers, aged above 18 years, of both genders, who looked for assistance in the dentistry course clinic of a Public University, with diagnosis of temporomandibular disorder according to Diagnostic Criteria for Temporomandibular Disorder Research. Volunteers were submitted to X-rays (teleradiography with analysis of cephalometric points); posture in physiologic centric relation was evaluated by computerized photogrammetry and pain intensity was evaluated by the visual analog scale from zero to 10. Patients were evaluated before and after 8 weeks of treatment. RESULTS: Pain has decreased from 6.43±2.84 to 2.17±2.39, before and after treatment, respectively (p<0.05). Vertical head alignment, in initial angle, has changed from 21.84⁰±17.49⁰ to 11.38⁰±14.61⁰ (p<0.05). Jaw position has changed from A-NB (angle indicating mandible-jaw relationship in the anterior posterior direction): 4.95±2.52 millimeters to A-NB: 4.64±2.52 mm (p<0.05). CONCLUSION: Muscle temporomandibular disorder changes vertical head alignment and interferes with jaw position.
Human and Veterinary Medicine
subject in the communities of researchers. Most authors consider occlusal anomalies as a fundamental factor in causing the symptoms, while other studies suggest that occlusal dysfunctions represent only one of the numerous factors associated with temporomandibular joint disorder (Landi et al 2012; Pullinger et al 1993; Sipila et al 2012). The occlusal factors must be analyzed both static and dynamic. Most of the studies carried out until now evaluated the static occlusal relationships, analyzing the degree of involvement in the etiology of TMD as isolated factor. Pullinger, Seligman and Gornbein realized a multifactorial analysis in order to determinate the degree of influence of each occlusal factor in association with other factors. Eleven occlusal factors were taken into consideration, being compared patients with signs and symptoms of TMD, with a group of healthy subjects. The authors concluded that many occlusal parameters, traditionally considered with increased influence in appearance of TMD, actually have little contribution in developing this disease, dental occlusion therefore cannot be considered the most important etiologic factor in TMD (Pullinger et al 1993). Several epidemiological studies have identified an association between facial pain and/or TMD and different forms of occlusal dysfunction such as medialized occlusion, cross occlusion, Abstract. Objective: This study aimed at assessing occlusal characteristics and their relation with sign and symptoms of temporomandibular joint disorder in a population group. Material and methods: Two hundred thirteen fourth year dental medicine students (mean age of 23±4.24 years) were evaluated according to Research Diagnostic Criteria for Temporomandibular joint Disorder form, but the examination also included additional procedures. Results: Pain in the oro-facial muscles was more frequent in female patients comparing to males. Articular and muscular pain is more frequent among subjects with interferences during the slide between Centric Relation and Maximum Intercuspation (articular p=0.038, OR 3.089, CI 95%, 1.066-8.954), muscular p=0.045, OR 3.771, CI 95%, 1.031-13.793). They can determine contractions of the masticatory muscles, affecting more often trapezius muscle (p=0,04), lateral pterygoid muscle (p<0.001), SCM (p=0.003) or milohyoid (p<0.001). A higher probability for joint clicks development is encountered in cases with accentuated Wilson curve (p=0.014, OR 17.285, CI 95%, 1.774-168.454). Conclusions: Occlusal characteristics can influence the articular and muscular status in the oro-facial area. These results indicate that clinicians should pay special attention to the temporo-mandibular joint status of patients with abnormal Spee or Wilson curves or presenting interferences during the slide from centric relation to maximum intercuspation.