A comparative study of the clinical aspects and relationship between fractures of mandibular angle and the presence of a lower third molar

bstract: Several authors have reported that the presence of teeth may be one of the determinants of mandibular fractures. Fracture of the jaw plays an important role in the practice of the oral surgeon. A number of factors contribute to the strength of the mandible. These include presence of active and strong musculature, the shape and thickness of the bone, and the presence or absence of teeth. The Deparment of Oral and Maxillofacial Surgery, Faculty of Dentistry, Istanbul University, managed 100 patients with mandibular factures between 1991 and 1999. The male to female ratio was 5.25/1 and the majority of patients were aged between 12 and 53 years. Accidents and fights were the main causes of fractures throughout the 8-year study period. A high percentage of patients were treated by closed reduction and maxillo-mandibular fixation. The aim of this study was to correlate the incidence of mandibular fractures with the presence and the degree of eruption of lower third molar teeth. Data were analyzed by chi- square and Student’s t test. Key Words: Mandibular fracture, lower third mola

Conservative Management of the Isolated Mandibular Coronoid Process Fracture

Fractures of the coronoid process are uncommon and can easily be missed. Coronoid fracture may manifest as simple, linear line with minimal displacement. If the periosteum is traumatized, the degree of displacement may increase. Restricted mouth opening and mandibular movement, malocclusion, and swelling below the zygomatic arch may be evident. The decision of treatment plan should be based on the fracture pattern, time of the fracture, the presence or absence of concomitant fractures, and clinical symptoms. Coronoid fractures are generally managed conservatively, a few cases require surgical intervention. A rare case of fracture of the coronoid process caused by trauma of the temporalis muscle is described

Measurement of temperature change during the implant site preparation to determine influence of tool characteristics

Implant site preparation procedure is the most important factor that affects early osseointegration performance of a dental implant. During the side preparation procedure increase in the bone temperature above critic limit causes irreversible osteonecrosis. This heat rise compromises implant area around implants thus ending with unsuccessful osseointegration outcomes