Evaluation of pain threshold upon palpation of the masticatory muscles in women with temporomandibular disorder according to the Research Diagnostic Criteria of Temporomandibular Disorders (original) (raw)

Pain threshold in the masticatory and cervical muscles in different types of temporomandibular disorders

Manual Therapy, Posturology & Rehabilitation Journal, 2016

Introduction: Given the intimate connection of the temporomandibular joint in the cervical region and its functions of chewing, speech and swallowing, patients with temporomandibular disorders (TMD) have most painful condition in stomathognatic muscles. Objective: Check for differences in pressure pain threshold of the masseter (MS), temporalis (TM), upper trapezius (UT) and sternocleidomastoid (SCM) muscles in different types of TMD. Method: Participated in the research 97 subjects, classified according to “The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD)”: myofascial pain (TMD IA), myofascial pain with limited opening (TMD IB), disc displacement with reduction (TMD IIA), disc displacement without reduction and with limited opening (TMD IIB), disc displacement without reduction and without limited opening (TMD IIC). For measurement of the pressure pain threshold (PPT) was used the pressure algometry program (Kratos®) of the TM, MS, UT and SCM muscles. For ...

Influence of craniomandibular and cervical pain on the activity of masticatory muscles in individuals with Temporomandibular Disorder

CoDAS, 2014

Influência da dor craniomandibular e cervical na atividade dos músculos mastigatórios em indivíduos com Disfunção Temporomandibular ABSTRACT 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 Ries LGK, Graciosa MD, Medeiros DL, Pacheco SCS, Fassicolo CE, Graefling BCF, Degan VV CoDAS 2014;26(5):389-94

Masticatory muscle disorders diagnostic criteria: the American Academy of Orofacial Pain versus the research diagnostic criteria/temporomandibular disorders (RDC/TMD)

Journal of Oral Rehabilitation, 2012

In this study, relevant cases were retrospectively reviewed to identify patients who were diagnosed as suffering from myofascial pain only according to the research diagnostic criteria ⁄ temporomandibular disorders (RDC ⁄ TMD) criteria, in order to examine whether or not they could fulfil the American Academy of Orofacial Pain (AAOP) diagnostic criteria for TMD-related masticatory muscle disorders. One hundred and twenty-seven patients, diagnosed according to the RDC ⁄ TMD criteria as having myofascial pain with or without limited jaw opening only, were allocated to two groups according to their answers to the RDC ⁄ TMD 'jaw disability checklist'. The two groups were compared for Axis I and II data taken from the RDC ⁄ TMD questionnaire. Thirty-eight of the patients (29AE9%) did not associate their symptoms with jaw functions (e.g. chewing and yawning). This group was characterised by increased range of motion (ROM) and older average age. The AAOP diagnostic criteria for TMD require pain on function in all subtypes of TMD-related muscle disorders. An association between pain and jaw function is common and research is needed to determine whether this should be categorised differently to muscle pain unrelated to jaw function. There may well be different pathophysiological mechanisms and consequently different management strategies for these two pain conditions.

Effects of muscle inhibition technique on relief of masticatory pain in patients with temporomandibular disorders: an experimental study

ConScientiae Saúde, 2013

Objectives: To verify the effects of the technique of muscle inhibition in individuals with Temporomandibular Disorder (TMD). Methods: A longitudinal, interventional, exploratory, comparative study was conducted of seven female subjects with a mean age of 42.8 (± 19.12) years. Participants were submitted to an active muscle inhibition technique until muscle relaxation occurred. We analyzed pain intensity, range of motion and bite force. Results: The pain decreased after use of the technique(p 0.01) from 6.3 to 2.3; the range of motion showed gains in the opening (p=0.04) and an increase by 2 mm of right laterality(p=0.01) and left laterality (p=0.01), while protrusion was not affected (p=0.35). The bite force increased by 13 mmHg after the use of the technique(p 0.01). Conclusion: The technique of muscle inhibition was responsible for significant reductions in the frequency and intensity of kinesiological episodes and in changes of the functional conditions of patients with TMD.

Evaluation of body painful areas in patients with muscular temporomandibular disorder: a retrospective study

Revista Dor, 2015

BACKGROUND AND OBJECTIVES: Among temporomandibular disorder classifications, masticatory muscles myofascial pain is the most frequent. Its multifactorial etiology makes its treatment difficult. Identifying other painful sites related to temporomandibular disorders may help controlling comorbidities and, as a consequence, improving their symptoms. This study aimed at evaluating the presence of body pain in temporomandibular disorder patients, the frequency of such reports and their location. METHODS: We have evaluated 328 medical charts of the Dental Research Center São Leopoldo Mandic, with diagnosis of muscular temporomandibular disorder. Patients were evaluated by means of a body map to locate pain complaints. RESULTS: From 328 analyzed medical charts, 180 (55%) had body pain (160 females, 20 males), and 148 (45%) had facial pain only (116 females, 32 males). Areas with most frequent pain reports were cervical, lumbar and shoulders. Females had more body pain (with pain n=160, without pain n=116, p<0.001) as compared to males (with pain n=20, without pain n=32) with statistical difference. In most cases pain has affected both body sides (bilateral face 67%, bilateral body 92%). CONCLUSION: Most patients with temporomandibular disorder had pain in body parts different from the face. Regions marked in human body drawings with more pain were cervical followed by lumbar and shoulders.

Evaluation of body painful areas in patients with muscular temporomandibular disorder: a retrospective study Avaliação das áreas de dor no corpo em pacientes com disfunção temporomandibular muscular: estudo retrospectivo

BACKGROUND AND OBJECTIVES: Among temporomandibular disorder classifications, masticatory muscles myofascial pain is the most frequent. Its multifactorial etiology makes its treatment difficult. Identifying other painful sites related to temporomandibular disorders may help controlling comorbidities and, as a consequence, improving their symptoms. This study aimed at evaluating the presence of body pain in temporomandibular disorder patients, the frequency of such reports and their location. METHODS: We have evaluated 328 medical charts of the Dental Research Center São Leopoldo Mandic, with diagnosis of muscular temporomandibular disorder. Patients were evaluated by means of a body map to locate pain complaints. RESULTS: From 328 analyzed medical charts, 180 (55%) had body pain (160 females, 20 males), and 148 (45%) had facial pain only (116 females, 32 males). Areas with most frequent pain reports were cervical, lumbar and shoulders. Females had more body pain (with pain n=160, without pain n=116, p<0.001) as compared to males (with pain n=20, without pain n=32) with statistical difference. In most cases pain has affected both body sides (bilateral face 67%, bilateral body 92%). CONCLUSION: Most patients with temporomandibular disorder had pain in body parts different from the face. Regions marked in human body drawings with more pain were cervical followed by lumbar and shoulders.

Importance of evaluating the presence of temporomandibular disorders in chronic pain patients

Revista Dor, 2014

BACKGROUND AND OBJECTIVES: Chronic pain patients have lower pain threshold, thus having pain in other parts of the body. This study aimed at evaluating the presence of temporomandibular disorders in patients with chronic pain in different parts of the body comparing them to a pain-free control group. In addition, we tried to determine which group had more temporomandibular disorder symptoms and myofascial changes in masticatory muscles. METHODS: Sample was made up of 180 individuals divided in 2 groups, being 90 patients with chronic pain in different parts of the body: study group, and 90 pain-free patients: control group. The questionnaire proposed by the American Academy of Orofacial Pain was used to diagnose temporomandibular disorder symptoms. A directed and validated physical evaluation was performed. Analyses were done to determine the frequency of temporomandibular symptoms both in the control group and the study group, and the presence of muscular temporomandibular disorders in both groups. RESULTS: Among chronic pain patients, 70% had temporomandibular disorder symptoms and in the control group they were 55%. Patients with symptoms were physically evaluated and it was observed that 45% had masticatory muscles myofascial pain as compared to 28% in the control group. CONCLUSION: The prevalence of temporomandibular disorder symptoms and masticatory muscles pain was higher among chronic pain patients as compared to the control group and should be taken into consideration when the proposal is to evaluate and control all pains of such patients.

Temporomandibular joint pain and dysfunction

Current Pain and Headache Reports, 2006

Pain caused by temporomandibular disorders originates from either muscular or articular conditions, or both. Distinguishing the precise source of the pain is a significant diagnostic challenge to clinicians, and effective management hinges on establishing a correct diagnosis. This paper examines terminology and regional anatomy as it pertains to functional and dysfunctional states of the temporomandibular joint and muscles of mastication. A review of the pathophysiology of the most common disorders is provided. Trends in evaluation, diagnosis, treatment, and research are presented.

Longitudinal outcome of temporomandibular disorders: a 5-year epidemiologic study of muscle disorders defined by research diagnostic criteria for temporomandibular disorders

Journal of orofacial pain, 2003

To investigate the course of myofascial pain defined by Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) over a period of 5 years, and to identify prognostic factors from baseline data. Subjects were 155 consecutive patients and 80 community cases identified from an age-stratified representative population sample; all met the primary selection criterion of reporting pain in the temporomandibular joint (TMJ) or masticatory muscles. The 2 groups were combined to yield a total sample of 235 subjects (50 male, 185 female; mean age = 39 years). Subjects were evaluated at baseline, 1 year, 3 years, and 5 years by trained examiners using standardized, reliable methods. Psychological and behavioral factors were assessed by self report. According to RDC/TMD criteria, 50 (31%) of the 165 subjects presenting with myofascial pain (MFP) at baseline continued to have their disorder over a period of 5 years; 55 (33%) remitted, and 60 (36%) were recurrent cases. Bivariate stat...

Temporomandibular disorder and generalized joint hypermobility: electromyographic analysis of the masticatory muscles

Aim: This study aimed to verify the presence of generalized joint hypermobility (GHJ) in individuals with temporomandibular disorders (TMD) and asymptomatic individuals and to compare the activity of their masticatory muscles. Methods: 61 female patients aged 18 to 35 years were evaluated: 34 with diagnosis of TMD by the Research Diagnostic Criteria for Temporomandibular Disorders constituted the TMD group and 27 constituted the asymptomatic group. The subgroups were classified according to the presence of GJH by the Beighton score. Electromyographic recordings of the masseter and anterior temporal muscles were acquired bilaterally at mandibular rest and in maximal intercuspal position. Results: GJH was present in 64.71% of the individuals with TMD and in 40.74% of the asymptomatic individuals. The electrical activity was significantly higher in the right masseter (p = 0.0111), left masseter (p = 0.0007) and right temporal (p = 0.0046) in the patients with TMD than in the asymptomat...