Author: Bianca Borrelli
Supervisor: Michael Kratschmayr
Focus and hypotheses: The aim of this study was to analyze the influence of an osteopathic myofacial release technique the so-called MFR technique on the lateral pterygoid muscle in terms of the temporomandibular joint mobility compared to a placebo group. It was based on the following parameters: Mouth-opening, laterotrusion right and left as well as protrusion. Collaterally the study analyzes whether this intervention will lead to a change of the occlusion contact points and the condyle range of motion.
Method: This study is a randomized, controlled and single-blinded pilot study. The proband collective consisted of 13 female CMD (craniomandibular disorder) patients aged between 25 up to 59. In this context 9 female patients were chosen for the MFR treatment group and 4 female patients for the control group. The MFR treatment group had an intraoral intervention on the LPM, the control group an ultrasonic placebo treatment on the temporomandibular joint (TMJ). All measurements were carried out with a digital measuring slide and took place before and after the intervention. The second part of this study analyzed the measurements of the condyle rang of motion by using a computer-aided optoelectronic measurement device. All measurements were carried out before and after the intervention in order to confirm the results of the manual therapy treatments. The testing of the occlusion contact points was performed with coloured occlusion foil.
Results: As far as the parameters of the treatment group are concerned there was an improvement of the TMJ with a statistical significant improvement of laterotrusion right (p=0,038) and laterotrusion left (p=0,028). The graphic presentation of the condyle range of motion also shows an improvement of all considered parameters. The number of occlusion contact points increased by 37,27%. There has been a detoriation concerning the parameter ‘mouth-opening’ in the placebo group of both motion studies whereas protrusion and laterotrusion slightly improved. The condyle range of motion does not represent any improvement concerning protrusion but shows a slight improvement of mediotrusion.
Conclusion: The study demonstrates that the use of the intraoral MFR technique on the LPM leads to an improvement of TMJ mobility and the condyle range of motion. It can be considered as a positive contribution to the therapy treatment of CMD patients.
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