scholarly journals Do patients with chronic unilateral orofacial pain due to a temporomandibular disorder show increased attending to somatosensory input at the painful side of the jaw?

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4310 ◽  
Author(s):  
Stefaan Van Damme ◽  
Charlotte Vanden Bulcke ◽  
Linda Van Den Berghe ◽  
Louise Poppe ◽  
Geert Crombez
Keyword(s):  
Orofacial Pain ◽  
Temporomandibular Disorder ◽  
Control Group ◽  
Somatosensory Processing ◽  
Spatial Bias ◽  
Fear Avoidance ◽  
Fear Avoidance Beliefs ◽  
Tactile Stimuli ◽  
Significant Difference ◽  
Somatosensory Input

Background Patients with chronic orofacial pain due to temporomandibular disorders (TMD) display alterations in somatosensory processing at the jaw, such as amplified perception of tactile stimuli, but the underlying mechanisms remain unclear. This study investigated one possible explanation, namely hypervigilance, and tested if TMD patients with unilateral pain showed increased attending to somatosensory input at the painful side of the jaw. Methods TMD patients with chronic unilateral orofacial pain (n = 20) and matched healthy volunteers (n = 20) performed a temporal order judgment (TOJ) task indicated which one of two tactile stimuli, presented on each side of the jaw, they had perceived first. TOJ methodology allows examining spatial bias in somatosensory processing speed. Furthermore, after each block of trials, the participants rated the perceived intensity of tactile stimuli separately for both sides of the jaw. Finally, questionnaires assessing pain catastrophizing, fear-avoidance beliefs, and pain vigilance, were completed. Results TMD patients tended to perceive tactile stimuli at the painful jaw side as occurring earlier in time than stimuli at the non-painful side but this effect did not reach conventional levels of significance (p = .07). In the control group, tactile stimuli were perceived as occurring simultaneously. Secondary analyses indicated that the magnitude of spatial bias in the TMD group is positively associated with the extent of fear-avoidance beliefs. Overall, intensity ratings of tactile stimuli were significantly higher in the TMD group than in the control group, but there was no significant difference between the painful and non-painful jaw side in the TMD patients. Discussion The hypothesis that TMD patients with chronic unilateral orofacial pain preferentially attend to somatosensory information at the painful side of the jaw was not statistically supported, although lack of power could not be ruled out as a reason for this. The findings are discussed within recent theories of pain-related attention.

scholarly journals Cervical and scapular instability in subjects with temporomandibular disorder

2020 ◽  
pp. 1-5
Author(s):  
Maryllian de Albuquerque Vieira ◽  
Maria das Graças Rodrigues de Araújo ◽  
Gabriel Barreto Antonino ◽  
Angélica da Silva Tenório ◽  
Maria das Graças Paiva ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorder ◽  
Neck Disability Index ◽  
Shoulder Girdle ◽  
Masticatory Muscles ◽  
Control Group ◽  
Cervical Instability ◽  
Mobility Data ◽  
Significant Difference ◽  
Neck Disability

Background: Temporomandibular disorder (TMD) is a set of disorders involving the masticatory muscles, the temporomandibular joint (TMJ) and/or the associated structures. Objectives: To evaluate the occurrence of cervical and scapular instability in subjects with TMD. Methods: A total of 22 patients participated in the study, being 11 of them with TMD, selected using the RDC/TMD criteria, and 11 in the control group. The stabilization capacity of the neck muscles was evaluated through StabilizerTM and the muscles of the shoulder girdle through specific tests. Cervical mobility data from both groups were provided using the accelerometer while for cervical disability was used the Neck Disability Index (NDI) questionnaire. Results: Cervical instability was higher in the TMD group (20.36 ± 3.2) than in the control group (28.54 ± 0.8), revealing significant difference (p= 0.03). The highest percentages of scapular stabilization tests were found in subjects with TMD, (n= 9; 81.81%) when compared with control subjects (n= 5; 45.45%). The NDI results showed that the TMD group presented mild cervical incapacity (11.18 ± 2) and the control presented no disability (2.27 ± 0.4; p= 0.001). Conclusion: Cervical disability, and cervical and scapular instability were more frequent in subjects with TMD.

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.

Is there an association between fear avoidance beliefs, and pain and disability in patients with orofacial pain?

2017 ◽  
Vol 44 (6) ◽  
pp. 426-433
Author(s):  
S. L. Edmond ◽  
C. S. Enriquez ◽  
M. H. Millner ◽  
C. Nasri-Heir ◽  
G. M. Heir
Keyword(s):  
Orofacial Pain ◽  
Fear Avoidance ◽  
Fear Avoidance Beliefs

scholarly journals Angular measurements of the mandible in adults with temporomandibular joint disorders: a CBCT study

2020 ◽  
Vol 14 (3) ◽  
pp. 185-191
Author(s):  
Seda SERTEL MEYVACI ◽  
Duygu GÖLLER BULUT ◽  
Ayşe Tuğçe ÖZTÜRK ◽  
Handan ANKARALI
Keyword(s):  
Temporomandibular Disorder ◽  
Linear Regression Analysis ◽  
Temporomandibular Joint Disorders ◽  
Unknown Etiology ◽  
Control Group ◽  
Face Width ◽  
Significant Difference ◽  
Angular Measurements ◽  
Upper Face ◽  
The Right

Objectives: Temporomandibular disorder (TMD) is a degenerative musculoskeletal disease of unknown etiology, associated with morphological and functional deformities. The present study aimed to evaluate the angular parameters of the mandible in TMD patients with cone-beam computed tomography (CBCT) and to compare with healthy controls. Methods: A total of 107 patients (54 in the TMD group and 53 in the control group) were included in the study. Ten angular measurements including right and left sides and 4 different length measurements were evaluated on CBCT images of both groups to eliminate individual differences. The differences between the two groups were examined using the significance test or Mann-Whitney U test. Multiple linear regression analysis was used for a detailed examination of the relationship between parameters. Results: The upper face width was significantly higher in the TMD group (p=0.004). After correcting for the upper face width value, there was a significant difference between the groups in terms of the right b angle values (p=0.001). The other differences were not significant (p>0.05). Conclusion: The decrease in the right b angle in the TMD group can be interpreted as a result of the mechanical effect of masticatory muscle hyperactivity on the angular properties of the mandible in these patients

scholarly journals Telerehabilitation of acute musculoskeletal multi-disorders: prospective, single-arm, interventional study

2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Fabíola Costa ◽  
Dora Janela ◽  
Maria Molinos ◽  
Jorge Lains ◽  
Gerard E. Francisco ◽  
...  
Keyword(s):  
Rating Scale ◽  
Retention Rate ◽  
Control Group ◽  
Large Sample Size ◽  
Fear Avoidance ◽  
Patient Satisfaction Score ◽  
Fear Avoidance Beliefs ◽  
Wide Range ◽  
Secondary Outcomes ◽  
Very High

Abstract Background Acute musculoskeletal (MSK) pain is very common and associated with impaired productivity and high economic burden. Access to timely and personalized, evidence-based care is key to improve outcomes while reducing healthcare expenditure. Digital interventions can facilitate access and ensure care scalability. Objective Present the feasibility and results of a fully remote digital care program (DCP) for acute MSK conditions affecting several body areas. Methods Interventional single-arm study of individuals applying for digital care programs for acute MSK pain. Primary outcome was the mean change between baseline and end-of-program in self-reported Numerical Pain Rating Scale (NPRS) score and secondary outcomes were change in analgesic consumption, intention to undergo surgery, anxiety (GAD-7), depression (PHQ-9), fear-avoidance beliefs (FABQ-PA), work productivity (WPAI-GH) and engagement. Results Three hundred forty-three patients started the program, of which 300 (87.5%) completed the program. Latent growth curve analysis (LGCA) revealed that changes in NPRS between baseline and end-of-program were both statistically (p < 0.001) and clinically significant: 64.3% reduction (mean − 2.9 points). Marked improvements were also noted in all secondary outcomes: 82% reduction in medication intake, 63% reduction in surgery intent, 40% in fear-avoidance beliefs, 54% in anxiety, 58% in depression and 79% recovery in overall productivity. All outcomes had steeper improvements in the first 4 weeks, which paralleled higher engagement in this period (3.6 vs 3.2 overall weekly sessions, p < 0.001). Mean patient satisfaction score was 8.7/10 (SD 1.26). Strengths and limitations This is the first longitudinal study demonstrating the feasibility of a DCP for patients with acute MSK conditions involving several body areas. Major strengths of this study are the large sample size, the wide range of MSK conditions studied, the breadth of outcomes measured, and the very high retention rate and adherence level. The major limitation regards to the absence of a control group. Conclusions We observed very high completion and engagement rates, as well as clinically relevant changes in all health-related outcomes and productivity recovery. We believe this DCP holds great potential in the delivery of effective and scalable MSK care. Trial registration NCT, NCT04092946. Registered 17/09/2019;

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