Physical Exercises for Temporomandibular Disorders
Training of the Lateral Pterygoid Muscle in the Treatment of Anterior Temporomandibular Joint Disc Displacement With Reduction With Pain
1 other identifier
interventional
60
1 country
1
Brief Summary
Temporomandibular Disorders are a common clinical picture that appear in particular in people between the age of 20 and 40 years. About 33% of the total population shows symptoms and signs of TMD. Among the temporomandibular joint disorders anterior disc displacement appear to be the most common. In case of limitations of jaw movements and or pain conservative methods including combinations of behavior change, physiotherapy, stabilization appliance therapy and medication are most popular. The benefit of a self-treatment program to strengthen the lateral pterygoid muscle and to learn a properly executed lower jaw sideways movement to achieve pain reduction is up to now not well investigated. The aim of this study is to examine the effectiveness of muscle training for the treatment of patients with anterior disc displacement with reduction (DDWR). 60 patients with DDWR and pain (≥18 years) will be randomly allocated to two groups: 1. Physical exercises, 2. Stabilization appliance therapy. All patients receive a functional examination according to the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) at baseline. The training in group 1 includes eccentric and concentric counter-movements of the lower jaw muscle to strengthen and restore a physiological lateral movement of the mandible. The muscle exercises should be performed once a day with 5-6 repetitions per side. The treatment with an equilibration appliance in the lower jaw serves as a comparison group. Patients are instructed to wear the appliance while sleeping. The wearing rhythm is described as intermittent. (three nights - wearing the appliance, one night - not wearing the appliance). The primary target variable is the occurrence of pain in the head and joint area before and during therapy. The variable is measured using a numeric rating scale (NRS; 0-10) during the baseline examination and control check-ups after 2, 4 and 6 months.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started May 2021
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 24, 2021
CompletedFirst Posted
Study publicly available on registry
March 29, 2021
CompletedStudy Start
First participant enrolled
May 3, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 7, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
April 30, 2023
CompletedDecember 8, 2023
December 1, 2023
1.5 years
March 24, 2021
December 7, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
change orofacial pain: numeric rating scale (NRS; 0-10)
The primary outcome variable is defined as the change of orofacial pain in the head and joint area after initiating the therapy measured by numeric rating scale (NRS; 0-10, 0: no pain, 10: worst imaginable pain) at the time of the follow-up appointments
2 months, 4 months, 6 months
Secondary Outcomes (3)
Change in number of clicking noises
2 months, 4 months, 6 months
Change in interincisal distance during jaw opening
2 months, 4 months, 6 months
Change in force degrees for the lateral movement of the mandible (scale 0-5)
2 months, 4 months, 6 months
Study Arms (2)
Physical training of the lateral pterygoid muscle
EXPERIMENTALStatic stretching and isometric contraction exercises of the lateral pterygoid muscle are used to strengthen and restore a physiological lateral movement of the mandible.
Stabilization appliance therapy
ACTIVE COMPARATORHard acrylic splint with anterior canine guidance for the lower jaw.
Interventions
Coordination training for lateral movement of the mandible (spatula exercise): 1. A wooden spatula is loosely placed between the teeth of the upper and lower jaw; the head must be aligned with the body axis; the exercise should be performed in front of a mirror. 2. The lower jaw moves to the left and back to the center with little contact to the spatula 3. The lower jaw moves to the right and back to the center under contact with the spatula Training of the left lateral pterygoid muscle: 1. The left palm is placed on the left temple region 2. Right hand forms a fist and is placed on the tip of the right chin 3. Both arms are aligned parallel to the surface of the floor 4. The lower jaw is moved to the right against a moderate resistance of the fist = concentric muscle work 5. With measured force of the fist, the lower jaw is brought back to the center = eccentric muscle work (Right lateral pterygoid muscle training with opposite hands.)
Upper and lower jaw impressions are registered by using an intraoral scanner. The arbitrary hinge axis position is determined using a face bow. The stabilization appliance with anterior canine guidance is manufactured in the Lexmann laboratory in Dresden. The stabilization appliance is incorporated by the dentist and the static and dynamic occlusion is checked. A tension-free fit of the appliance on the lower jaw is necessary. Additionally, equal contacts in the side teeth area and incisors guidance in the case of mandibular protrusion are checked visually and by using occlusion foil. During mandibular lateral movement only the canine guidance takes place and is also registered optically and by using occlusion foil.Interference contacts should be adjusted. The patient is instructed to wear the stabilization appliance while sleeping. The wearing rhythm is described as intermittent. (three nights - wearing the appliance, one night - not wearing the appliance).
Eligibility Criteria
You may qualify if:
- Orofacial pain in the joint or muscles, degree NRS≥3
- Clicking phenomenon during TMJ opening or closing movement
- Deviation movement during opening of the lower jaw
- Legal competence and presence of the signed declaration of consent
You may not qualify if:
- Drug abuse
- Depression
- Polyarthritis
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Zahnarztpraxis Dr. Pfanne
Steina, 01920, Germany
Related Publications (22)
Bumann, A., Groot Landeweer, G.: Manuelle Untersuchungstechniken zur Manuellen Untersuchungstechniken zur Differenzierung von Funktionsstörungen im Kausystem. In Hahn, W.: Funktionslehre: aktueller Stand und praxisgerechte Umsetzung. Hanser, München, 1993
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BACKGROUNDJanda V (2013) Muscle Function Testing. Butterworth-Heinemann
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PMID: 3199322BACKGROUNDOkeson JP (2019) Management of Temporomandibular Disorders and Occlusion - E-Book. Elsevier Health Sciences
BACKGROUNDSchiffman E, Ohrbach R, Truelove E, Look J, Anderson G, Goulet JP, List T, Svensson P, Gonzalez Y, Lobbezoo F, Michelotti A, Brooks SL, Ceusters W, Drangsholt M, Ettlin D, Gaul C, Goldberg LJ, Haythornthwaite JA, Hollender L, Jensen R, John MT, De Laat A, de Leeuw R, Maixner W, van der Meulen M, Murray GM, Nixdorf DR, Palla S, Petersson A, Pionchon P, Smith B, Visscher CM, Zakrzewska J, Dworkin SF; International RDC/TMD Consortium Network, International association for Dental Research; Orofacial Pain Special Interest Group, International Association for the Study of Pain. Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) for Clinical and Research Applications: recommendations of the International RDC/TMD Consortium Network* and Orofacial Pain Special Interest Groupdagger. J Oral Facial Pain Headache. 2014 Winter;28(1):6-27. doi: 10.11607/jop.1151.
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PMID: 20140156BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Olaf Bernhardt, Prof.
University Medicine Greifswald
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- Unblinded with respect to the examiner and to the patient, blinded to the statisticians in the evaluation.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 24, 2021
First Posted
March 29, 2021
Study Start
May 3, 2021
Primary Completion
November 7, 2022
Study Completion
April 30, 2023
Last Updated
December 8, 2023
Record last verified: 2023-12
Data Sharing
- IPD Sharing
- Will not share