Evaluation And Correlation Of Maximum Bite Force Masticatory Muscle Thickness And Activity In Oral Submucous Fibrosis Patients And Confirmation Of Usefulness Of Maximum Bite Force In Evaluating The Treatment Outcome

Abstract

Abstract newlineObjectives: To assessment of maximum bite force in oral submucous fibrosis patients, newlineand to analyze maximum bite force to be an indicator of changes in cross-sectional newlinethickness and activity of masseter, anterior temporalis and orbicularis oris muscles in newlineoral submucous fibrosis patients and healthy controls newlineMaterials and Methods: It was a prospective case-control clinical study comprised 180 newlineOSMF patients who were divided into four groups and 45 healthy individuals served as newlinethe control group. The OSMF individuals were injected with hyaluronidase 1,500 IU newlinemixed in 1.5 ml of dexamethasone and 0.5 ml of lignocaine HCL intralesionally twice a newlineweek for one month along with a basic physiotherapy regimen consisting of mouth newlineexercises two times daily. The control subjects were given placebo capsules. The newlinemaximum bite force, ultrasonographic muscle thickness and electromyographic activity newlinewas evaluated among the OSMF patients and control group before and after treatment newlineand the results were correlated. newlineResults: A significant decrease in anterior MBF in group III and IV and posterior MBF of newlineboth sides in groups II, III and IV was noted. After treatment there was a significant newlineimprovement in anterior MBF in group III and posterior MBF in groups II and III OSMF newlinepatients. the electromyographic activity of masseter, anterior temporalis and orbicularis newlineoris muscles in OSMF patients showed increased activity when compared with healthy newlinecontrols. Patients with OSMF showed decreased muscle activity after treatment. The newlinethickness of masticatory muscles in OSMF patients was increased when compared with newlinehealthy controls. Patients with OSMF did not show significant change in muscle newlinethickness after treatment. newline