Objectives　　The objective of this study was to compare the postoperative complications in 562 mandibular fractures patients, treated by open reduction and stable internal fixation (ORIF).　　This study assesses the various complications that were encountered following the treatment of isolated comminuted mandibular fractures with open reduction and stable internal fixation between 2005 to 2012. The most common age group involved was 20-50 years and the common cause of fractures was road traffic accidents (53.3％), followed by assault (23.67%). Most common site of fractures was at the angle of the mandible (36.7%) followed by parasymphysis (30%). Patients were divided in two treatment group, rigid internal fixation and semi rigid fixation. Data regarding the complication outcomes was evaluated and reviewed.　　Materials and methods　　A study was performed from articles published from Pub Med, SCI and Cochrane database over a period of 2005 to 2012. A total of 562 cases of isolated comminuted mandibular fractures were reported. The patients were treated with semi rigid and rigid fixation techniques. Data were collected to evaluate for post-operative complications in terms of infection, mal-union, malocclusion and sensory disturbances.　　Results-infection was seen to be more in semi rigid fixation when compared to rigid fixation. (16%vs. 8%) whereas malocclusion (12%), malunion (12%) and sensory disturbances (16%)were maximally found in rigid fixation technique. However in this study the post-operative complications in either of the techniques were not significant.　　Conclusion- In this study only primary complications were analyzed where late complications can also occur. Such developments may be determined unless a longer term of patient assessment is performed.