Background: Recently, various modifications in placing miniplates for direct fixation of the mandibular fracture are gaining popularity. The modifications have various advantages like more rigidity, less foreign material, less time in application, etc. Thus the purpose of this prospective study was to evaluate outcomes for three bone plating techniques used in the treatment of mandibular symphysis/ parasymphysis fractures. Material and Methods:A prospective study was conducted on 45 patients with mandibular symphysis/parasymphysis fractures and the patients were divided into 3 groups (A, B and C). Patients were followed for 3 months. Outcome parameters like occlusion, distraction of lower border radiologically, parasthesia, infection, failure of bone plate (plate fracture) and screw loosening, postoperative segmental stability and radiological evaluation of fixation were recorded.Results: Distraction of lower border was seen in all the groups which were noticed radiographically at all follow ups. There was no occlusal discrepancy present in all the groups after three months post operatively. The fracture segments were stable in all groups at all times. Parasthesia was noticed in all the groups, which gradually decreased in one month and resolved completely by third month follow up. The degree of parasthesia, distraction of lower border, occlusal discrepancy was not statistically significant between the three groups. Hardware failure was not found in all the groups. Conclusion:It can be concluded that conventional miniplate system is a better and easier method than the 3D miniplate system for fixation of mandibular fractures. In comparison, the 3D miniplate system is unfavorable for use in cases of oblique fractures and those involving the mental nerve, and is also difficult to adapt.
Mandibular symphysis and parasymphysis fractures are a common type of injury to facial skeleton. The purpose of this prospective study was to evaluate outcomes for 2 bone plating techniques used in the treatment of mandibular symphysis/ parasymphysis fractures. Thirty patients reporting to the department with mandibular symphysis/parasymphysis fractures were divided into 2 groups (group A and group B). A prospective study was carried out in 30 patients with defined inclusion and exclusion criteria. Patients were followed for 3 months postoperatively for occlusion, distraction of lower border radiologically, paraesthesia, infection, failure of bone plate (plate fracture) and screw loosening, postoperative segmental stability and radiological evaluation of fixation. Fifteen patients were treated by open reduction and single miniplate fixation below apices of teeth with arch bar acting as tension band (Group A) and 15 with conventional titanium miniplates following Champy's rule i.e. Two miniplates (Group B). Distraction of lower border was seen in both groups (as in group A-1 patient and group B-2 patients), which was noticed radiographically at all follow ups. There was no occlusal discrepancy present in both groups after 3 months post operatively. The fracture segments were stable in both groups at all times. Paraesthesia was noticed in both groups, which gradually decreased in 1 month and resolved completely by 3 rd month follow up. The degree of paraesthesia, distraction of lower border, occlusal discrepancy was not statistically significant between the two groups. Infection was noticed in both groups at the end of 2 weeks, which was treated with antibiotics. The result between both the groups was not significant though. Hardware failure (plate fracture and screw loosening) was not found in both groups. Osteosynthesis by both techniques is effective in providing immediate post operative function but the distinct advantage of less hardware has made the use of a single miniplate quite popular in the recent times.
Lasers were introduced into the field of clinical dentistry with the hope of overcoming some of the drawbacks posed by the conventional methods of dental procedures. Since its first experiment for dental application in the 1960s, the use of laser has increased rapidly in the last couple of decades. At present, wide varieties of procedures are carried out using lasers. The aim of this review is to describe the application of lasers in dental hard tissue procedures. Lasers are found to be effective in cavity preparation, caries removal, restoration removal, etching, and treatment of dentinal sensitivity, caries prevention, and bleaching. Based on development in adhesive dentistry and the propagation of minimum intervention principles, lasers may revolutionize cavity design and preparation.
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