Oral submucous fibrosis is chronic, insidious disease affecting the oral cavity and sometimes the pharynx and rarely the tongue. A 20 year old patient with oral submucous fibrosis was treated with contact diode laser under local anesthesia and was followed up for 6 months. Diode lasers offered excellent results and had many advantages over conventional surgical treatment.

Key Words: Diode Laser, Oral Sub mucous Fibrosis, Local Anaesthesia,Surgical treatment