Background: A method of generating new bone following a corticotomy or an osteotomy and gradual distraction based on the tension-stress principle proposed by Ilizarov is called distraction osteogenesis. DO works in following phases: Osteotomy or surgical phase - Latency period - Distraction phase - Consolidation phase - Appliance removal - Remodeling period. Case report: A 21 years old female patient reported to the department of orthodontic with the chief complaint of forwardly placed upper front teeth. Her past medical, dental, post natal and family history did not show any relevant reporting. Material and method: The osteotomy was prepared by extending the line from medial aspect of posterior border of ramus till the buccal cortical plate between first and second molar and the intraoral bidirectional distractors (figure 3) were secured in place and the distraction was done twice a day at a rate of 1mm/day. The distraction was initiated five days after the surgery and then continued till 11 days. Conclusion: DO can effectively treat facial ............