Mandibular Fractures Medical Assignment Help
- Soft Tissue and Dentoalveolar Injuries
Depending on thetype of injury and the direction and force of the trauma, fractures of the mandible commonly occur in several locations. One classification of fractures
FIG. 24-11 Anatomic distribution of mandibular fractures. (From Olson RA et 0/:
Fractures of the mandible: a reviev« of 580 cases, J Oral Maxillofac Surg 40:23,
FIG. 24-12 Types of mandible fractures classified according to extent of injury in area of fracture site.
A, C-eenstick; 8, simple; C, comminuted; and D, compound.
describes mandibular fractures by· anatomic location. Fractures are designated as occurring in the condylar, ramus, angle, body, symphyseal. alveolar, and rarely coronoid process areas. Fig. 24-]] llIustrates the location and frequency of different types of mandibular fractures.
FIG, 24-13 .Favorable and unfavorable fractures of mandible, A, Unfavorable fractures result4ng in
displacement at fracture site caused by pull of masseter muscle. B, Favorable fracture in which direction
of fracture ‘and angulation of muscle pull resists displacement ..
Fractures of the mandible are referred to as favorable or unfavorable, depending on the angulation of the fracture and the force of the muscle pull proximal and distal to the fracture. In a favorable fracture, the fracture line and the muscle pull resist displacement of the fracture (Fig. 24-13). In an unfavorable fracture, the muscle pull results in displacement of the fractured segments.