1. INTRODUCTION- The face is the part of the body that represents the physiognomy of an individual. Trauma to the face results in injuries to soft tissue, teeth and skeleton component of the face. The mandible is the most sensitive part of the body where scars and deformities are less tolerated. The introduction of locking plate and screw system has certain theoretical advantage over the conventional plate and screw like screw loosening, greater stability across the fractured site, less precision required in plate adaptation and less alternation in osseous or occlusal relationship upon screw tightening. 2. Materials and methodMEDLINE, EMBASE, CINAHL, and Web of Science were systematically searched for literature pertaining to the 3D locking plates, mandible fracture fixation. Qualitative and quantitative findings from relevant studies are presented. 3. DiscussionA textbook written in 1180 by Salerno from Italy described the importance of establishing a proper occlusion. In 1492, Guglielmo Salicetti in his book Cyrurgia introduced the theory of maxilla- mandibular fixation by ‘tie jaw’. In 1795, Chopart and Desault described the effects of elevator and depressor muscles on mandibular fragmants6 . Michelet et al [3] (1973), reported the use of non-compression vitallium bone plate with mono cortical screw fixation, along with maxilla-mandibular fixation. Niederdellamann et al (1978), described a new kind of osteosynthesis plate, functionally stable internal fixation of mandibular fractures without the necessity of additional fixation elements. Pogrel M.A. et al (1986), used dynamic compression plates in 26 cases of mandibular fractures and discussed their advantages and disadvantages. He stated this method to be an alternative method of treatment for mandibular fracture without maxilla-mandibular fixation and rapid primary healing without any callous formation. But he also stated that it required wide oral incision and due to their bulks, the plate usually has to be removed. This technique is highly sensitive and demanding and severe disharmony in occlusion results in uneven compression, which could not be corrected in elastic traction.