The Effect of Muscle Energy Technique on Temporomandibular Joint Motion in People with Trismus of Chewing Muscles due to Third Molar Surgery

Determining the effectiveness of Muscle Energy Technique in increasing the maximum mouth opening after third molar surgery

Clinical trial with intervention group and control group, randomized, On 48 patients, randomized permutated blocks were used for randomization.

This study will be performed in the Neuromuscular Rehabilitation Research Center of Semnan University of Medical Sciences in such a way that patients are randomly placed in one of the intervention or control groups, the intervention group receives MET from the first day after surgery for seven days and the control group does not receive any intervention.

Inclusion criteria: People with inability to open their mouth after third molar extraction with an interincisal distance of less than 40 mm, people who have had 24 hours of third molar surgery, people with pain and spasm in the masticatory muscles after third molar surgery, Age between 18 and 35 years; Exclusion criteria: Degenerative Temporomandibular Joint (TMJ) arthritis, Inflammatory TMJ arthritis, Infective TMJ arthritis, Malignant tumors of the face and jaw, History of dislocation of TMJ, History of fracture of TMJ, History of previous surgery of jaw or TMJ, Hypermobile TMJ

The intervention group: receives Muscle Energy Technique (MET), the control group: does not receive any intervention. In this study, to perform the MET, the patient is asked to open his mouth for 10 seconds in front of the therapist's hand under the jaw. This process is repeated 5 times in each session and after each time the jaw is moved to a newer domain before repeating the technique. This technique is performed daily for seven days from the first day after surgery.

The degree of displacement of the Temporomandibular Joint condyle on the X and Y axis, Maximum Mouth Opening, Pain

In this study, we use the randomized permutation block method for random assignment. The procedure will be as follows: quadruple blocks with a combination of A and B ( group A intervention and group B control ) will be the criteria for action. Given that in quadruple blocks, six different combinations of blocks can exist, a number is assigned to each block (from 1 to 6). The number of blocks is as follows: Block 1: AABB Block 2: BBAA Block 3: ABBA Block 4: BAAB Block 5: ABAB Block 6: BABA Using a table of random numbers, considering the numbers 1 to 6 and deleting the numbers 0, 7, 8 and 9, respectively, the blocks are selected and the way of allocating patients for each of the groups A and B is done according to the selected blocks. Obviously, the list obtained from this method of allocation will be completely random and balanced. After preparing a randomization list for each patient, they will have a number in order of enrollment (from 1 to 48). A sealed envelope is prepared with A or B written inside the envelope based on the compiled list. The researcher, who is not aware of the main list, after registering the patient who entered the study and checking the person's number, takes the relevant envelope and opens it in the patient's bedside and realizes the type of intervention based on the contents of the envelope. In this way, the researcher is not aware of the list and only after the patient entered into the study and finding out if he/she is qualified, he/she realizes the type of intervention by opening the envelope.

There is no more information.