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Completed

NCT Number: NCT04967131

Proprioceptive Neuromuscular Facilitation Exercises in Temporomandibular Dysfunction

Individuals who were diagnosed with reduction disc displacement by Research Diagnostic criteria for Temporomandibular Disorder (TMD / RDC) were included in the study. Proprioceptive neuromuscular facilitation exercises were performed for 30 minutes using neck jaw and tongue patterns with rhythmic stabilization (RS) and combination of isotonics (CI) techniques by physiotherapist. Maximal mouth openings were measured with caliper, pain intensities were measured with visual analogue scale and pressure pain thresholds with hand algometer.

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Key information

About this study

TMD patients who are diagnosed by TMD/RDC are firstly assessed by physiotherapist for maximal mouth opening(MMO), pain intensity and pressure pain threshold. Then they will taught exercises with rhythmic initiation which includes repetation of the patern and 15 repetitions are applied as warm-up period. Proprioceptive neuromuscular facilitation (PNF) exercises are performed in the neck and jaw patterns with rhythmic stabilization (RS) and combination of isotonics (CI) techniques. In the neck, right rotation-right lateral flexion, left rotation-left lateral flexion pattern, and the opening and closing pattern according to the working mechanics of the masseter and temporal muscle in the chin, RS and CI techniques are used. By providing maximum resistance in accordance with the needs of each individual, the RS protocol consist of isometric contractions that would not involve changing movements for 10 seconds. The combination of isotonics technique include combined concentric, isometric, and eccentric contraction of the agonist muscle for 5 seconds of each contraction without rest. CI exercises consist of 15 repetitions per set. A 30-second rest given between sets to include recovery. After exercises immediate MMO, pain intensity and pain treshold assessment will be applied.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Volunteers between 18-25 years female, admitted to the study with clenching, grinding, clicking, jaw pain when eating hard foods, and limited and painful mouth movements.

Exclusion criteria

  • Having orthopedic, neurological or rheumatological cervical disorders which affect the jaw motions; receiving occlusal therapy as a companion to treatment, those who have an operation in the area of jaw, head and neck and those with vertigo that prevents head movements during exercises.

Treatment and study plan

PNF Exercises

Other

PNF exercises were applied in 3 sets of 15 repetitions based on movement in the diagonal plane, using head, neck and chin patterns. Contractions were sustained for at least 10 seconds.

Primary outcomes

  1. Pain Treshold

    Time frame: the immediate effect will be measured as soon as the exercise is finished

    The pain threshold will be measured with an algometer at certain points on the muscles in the area where the exercise is applied.

  2. Pain intensity

    Time frame: the immediate effect will be measured as soon as the exercise is finished

    The level of pain felt will be marked with a visual analog scale on a 10-centimeter paper.

  3. Maximum mouth opening

    Time frame: the immediate effect will be measured as soon as the exercise is finished

    Individuals will be asked to open their mouths as much as they can, and mouth opening will be measured with a caliper.

Secondary outcomes

  1. Unassisted opening

    Time frame: the immediate effect will be measured as soon as the exercise is finished

    the individual is told to open their mouth and the gap is measured with a caliper.

  2. maximum unassisted opening

    Time frame: the immediate effect will be measured as soon as the exercise is finished

    Without trying to increase the mouth opening with hand or any help, the individual actively opens mouth as much as they can and the opening is measured with a caliper.

  3. maximum assisted opening

    Time frame: the immediate effect will be measured as soon as the exercise is finished

    It is measured with a caliper by asking individuals to open their mouths as much as they can and open more by helping with their hands at the last point.

Sponsors and collaborators

Lead sponsor

Istanbul Medipol University Hospital

Other

Registry information

Official study title

The Immediate Effect of Proprioceptive Neuromuscular Facilitation on Pain and Maximal Mouth Opening in Temporomandibular Dysfunction: Pilot Study

Important dates

Study start
2020
Primary completion
2022
Study completion
2022
First posted
Jul 19, 2021
Registry last updated
May 1, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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