Which classification is used for mandible fracture?
Mandibular fractures are also classified as simple or comminuted and closed and compound. Fractures in- volving teeth are always compound as the periodontal lig- ament space is open in the oral cavity.
What is a Favourable and Unfavourable fractures of mandible?
Mandible fractures are favorable when muscles tend to draw bony fragments together and unfavorable when bony fragments are displaced by muscle forces. Vertically unfavorable fractures allow distraction of fracture segments in a horizontal direction.
What is a complex fracture of the mandible?
Complex fractures involve at least two fracture lines and three or more fragments in the same region of the mandible.
What is Angle’s classification?
Angle in 1890, the Angle Classifications are based on the relationship of the buccal groove of the mandibular first permanent molar and the mesiobuccal cusp of the maxillary first permanent molar. This classification is considered to be one of the most commonly used methods for identifying misalignment for molars.
What are the classification of fracture?
Closed or open fractures: If the injury doesn’t break open the skin, it’s called a closed fracture. If the skin does open, it’s called an open fracture or compound fracture. Complete fractures: The break goes completely through the bone, separating it in two. Displaced fractures: A gap forms where the bone breaks.
What is green stick fracture?
A greenstick fracture occurs when a bone bends and cracks, instead of breaking completely into separate pieces. The fracture looks similar to what happens when you try to break a small, “green” branch on a tree. Most greenstick fractures occur in children younger than 10 years of age.
What is Subcondylar fracture?
Subcondylar fractures are, by definition, below the attachment of the joint capsule and in general are devoid of ankylosis. Therefore, maxillomandibular fixation is recommended to be applied for a period of 4 to 6 weeks in most cases.
What is Dentoalveolar fracture?
Dentoalveolar fracture is a fracture of the facial bones that involves a segment of the alveolus as well as the associated teeth in that segment. Fractures of this kind can be easily identified through clinical findings characteristic of this phenomenon. “
What is butterfly fracture?
The term is commonly used in orthopedic surgery, and results from two oblique fracture lines meeting to create a large triangular or wedge-shaped fragment located between the proximal and distal fracture fragments, and resembles a butterfly.
What is the extra extraoral approach to the mandible?
Extraoral mandibular approaches. The marginal mandibular branch, which supply motor fibers to the facial muscles in the lower lip and chin, represent the most important anatomic hazard when performing the submandibular approach to the mandible.
What is the optimal treatment for mandibular angle fractures?
As a result, no general consensus on the optimal treatment of mandibular angle fractures has been agreed. Current treatment protocols for angle fractures involve rigid fixation in conjunction with intraoperative maxillomandibular fixation (MMF).
What is the most common cause of mandibular fractures?
Mandibular angle fractures represent the largest percentage of mandibular fractures. Two of the most common causes of mandibular angle fractures are motor vehicle collisions and assaults or altercations. There are two main proposed reasons why the angle of the mandible is commonly associated with fractures.
What is the submandibular approach in dentistry?
4. SUBMANDIBULAR APPROACH• One of the most useful approaches to the mandibular ramus and posterior body region is the submandibular approach, occasionally referred to as the Risdon approach• may be used for access to a myriad of mandibular osteotomies, angle/body fractures, and even condylar fractures and temporomandibular joint (TMJ) ankylosis.•