The patients will be discharged home at postoperative day 1 if the discharge criteria are met. 3D laser scanning of the face will be performed before they are discharged. They will be asked the degree of satisfaction of the operation . Paracetamol 1 g three times daily and tramadol 50mg three times daily as required will be prescribed on discharge. A diary will be given to the patient. From postoperative day 1 to day 3, at each morning, average pain score (NRS), analgesic consumption and side effects will be marked on the diary by the patient. At the 3rd month after operation, the severity and nature of pain at the surgical sites will be asked over phone. The patients will be asked to go to the Oral & Maxillofacial Surgery out-patient clinic at the Prince Philip Dental Hospital on postoperative day 2 for 3D laser scanning of the face.