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AIMS: To understand and evaluate the significance of various aetiological factors in determining the incidence and dictating the patterns of mandibular fractures in Rohilkhand region. METHODS: The patient records and radiographs for 144 patients treated for mandibular fractures were reviewed between the time periods from January 2012 to December 2013. Data on age, gender, aetiology, use of intoxicants, head injury, associated injuries, days of the week, anatomic site and multiple fractures within the mandible were recorded and assessed. RESULTS: Maximum incidence of fractures was observed among the individuals in 3rd decade (35.4%) followed by 2nd and 4th decades, which exhibited 32 and 30 cases (22.2% and 20.8%), respectively. Male to female ratio was biased (4:1) portraying a male predominance. Road traffic accidents (RTAs) were observed to be the predominant aetiological factor responsible accounting for 79.2% of the total injuries followed by assaults (11.8%) and falls (9%). Parasymphysis exhibited the highest incidence (32.63%) amongst the anatomic sites, followed by body (18.75%), angle (16.66%), condyle (15.27%), symphysis (12.50%), ramus (2.77%) and coronoid (1.38%). CONCLUSION: The study reveals that majority of affected patients were in the 2nd and 3rd decades. A definitive relationship existed between RTA and the incidence of mandibular fractures. The frequency further increased with consumption of social intoxicants. The most commonly fractured site was parasymphysis either isolated or associated with other fractures in the mandible.
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AIMS AND OBJECTIVES: To compare and evaluate the variation in recorded bite forces in patients with mandibular fractures undergoing open reduction and rigid internal fixation using standard 2.0 versus 2.0 mm locking miniplates. MATERIALS AND METHODS: A prospective randomized study was conducted for the treatment of mandibular fractures. Twenty adult patients with 31 mandibular fractures requiring an open reduction and internal fixation were included in the study. The sample was divided into two groups depending upon whether the patients received 2.0 mm non-locking (standard) or 2.0 mm locking miniplates for rigid fixation respectively. Bite force was evaluated at 1st, 3rd and 6th week after the open reduction and rigid fixation using miniplates. RESULTS: A statistically significant difference was not found in the clinical parameters such as pain, swelling, infection, paresthesia, hardware failure, and mobility between the fracture segments. The results showed that amongst locking vs non-locking miniplates, the former showed a greater bite force enhancement when compared to baseline values(post-trauma).A comparison between 2nd day post-operative vs 6th week post-operative values showed a significant increase in bite force in Group 1 (non-locking) (p < 0.05) whereas the values Were highly significant (p < 0.001) in Group 2 (locking Plate). CONCLUSION: The findings were suggestive that the efficacy of locking miniplates plate in mandibular fracture was superior in terms of bearing the masticatory loads during osteosynthesis of the fracture. However, the clinical results were almost similar to those seen with non-locking miniplate osteosynthesis.
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Formalin is a hazardous chemical that needs cautious handling and special storage. Owing to its disinfectant and fixative (i.e. for preserving pathologic tissue specimens in histopathology) properties, it is widely used in dentistry. Although, the terms formaldehyde and formalin are often confused as being identical, these are different as to the concentrations of the primary component i.e. formaldehyde. In fact, the common fixative available as 10% neutral buffered formalin is actually a 4% solution of formaldehyde (i.e., a 10% solution made from a 37-40% commercially pure formaldehyde solution). This case report describes an unfortunate case of accidental injection instead of local anesthetic, of formalin into the pterygomandibular space in a 35-year old woman during inferior alveolar nerve block for surgical removal of impacted lower right third molar and its successful management by cautious debridement (under both local and general anesthesia) and empirical drug therapy (utilizing analgesics and antibiotics).