Comparative evaluation of occlusal splint therapy and muscle energy technique in the management of temporomandibular disorders: A randomized controlled clinical trial

Hardik K Ram, Darshana N Shah, Hardik K Ram, Darshana N Shah

Abstract

Background: Contradicting evidence regarding the effects of occlusal splint therapy in the management of Temporomandibular disorder (TMD) and promising results shown by muscle energy technique.

Aim: To determine and compare the effects of occlusal splint therapy, muscle energy technique, and combined treatment with education for self-management and counseling in the management of TMD.

Study design and settings: Randomized clinical trial.

Methodology: A total of 160 participants diagnosed with TMD according to Diagnostic Criteria/TMD axis I were randomly allocated into four treatment groups with equal allocation ratio using random numbers table. The main inclusion criteria were the presence of pain in the preauricular area, TMJ and/or muscles of mastication and maximum mouth opening <40 mm. Group A participants received muscle energy technique, Group B participants received occlusal splint therapy, Group C participants received combined treatment, and Group D participants received education for self-management and counseling (control). Control group treatment was provided to all the trial participants.

Statistical analysis: Intragroup comparison was made using Friedman test and Wilcoxon test while intergroup comparison was done using Kruskal-Wallis test and Mann-Whitney U test.

Results: Intensity of pain on a visual analog scale and maximum mouth opening were measured at baseline, at 1 week, at 2 weeks, at 1 month, and after 3 months.

Conclusion: Muscle energy technique, occlusal splint therapy and combined treatment significantly reduce pain compared to controls and muscle energy and combined treatment are superior to other groups for mouth opening improvements in patients with TMD.

Keywords: Counseling; muscle energy technique; orofacial pain; self-management; stabilization splint; temporomandibular joint disorders.

Conflict of interest statement

None

Figures

Figure 1
Figure 1
Flow chart of trial participants according to CONSORT guidelines
Figure 2
Figure 2
Position of operator and patient during post isometric relaxation
Figure 3
Figure 3
Position of operator and patient during reciprocal inhibition
Figure 4
Figure 4
Stabilization splint in Centric relation position in patient's mouth
Figure 5
Figure 5
Graphical presentation for comparison of VAS score at different time interval among groups
Figure 6
Figure 6
Graphical presentation for comparison of mouth opening (in mm) at different time interval among groups

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