Abstract: Background: Temporomandibular joint arthrocentesis represents a form of minimally invasive surgical treatment in patients suffering from internal derangement of temporomandibular joint which is a simple, inexpensive and highly efficient procedure. Arthrocentesis changes the synovial fluid viscosity contributing to the translation of the disc and mandibular head complex.Drug is instlledunder pressure directly on to the TMJ to breakdown early adhesion generating shear free jaw movements.thus mouth opening is improved, pain is decreased as proinflammatory mediators are washed out. Material and methods: The present study was carried out in the department of oral and maxillofacial surgery at sree balaji dental college and hospital ethical committee clearence was obtained prior to study .the patients were informed about the surgical procedure the risk associated and informed consent was obtained from all the patients. Conclusion: The lysis of adhesion of adhesion is achieved by intermittent distension of the joint space by momentary blocking of the outflow needle and injection under pressure during lavage using both SPA and DPA.