Authors of section


Boaz Arzi

Executive Editor

Amy Kapatkin

General Editor

Frank Verstraete

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Rostral bilateral simple fracture of the mandible

Fracture characteristics

Rostral mandibular fractures can be bilateral simple.

Introduction to mandibular fractures

Mandibular fractures can be classified into region of the mandible and severity of the fracture.

Mandible fracture classification

  1. Symphyseal separation
  2. Parasymphyseal
  3. Rostral
  4. Mandibular body
  5. Caudal mandible
  6. Ramus (including the coronoid process)
  7. Temporomandibular joint (mandibular head of the condylar process)


The mandible is complex because of the interaction of hard, soft tissues and teeth. The majority of the mandibular bone volume is occupied by teeth roots, blood vessels and nerves, making the application of internal fixation difficult.

The periodontal status of the teeth affects the bone quality of the mandible and should be considered when selecting the fracture fixation method.


In the mandible, form and function are interdependent. Minor anatomical malalignment affects the occlusion of the teeth and function.

Fracture comminution and soft tissue damage will affect the repair method chosen.


Imaging allows analysis of fracture patterns and assessment of the fracture complexity. Dental radiography combined with computed tomography (CT) and 3D reconstruction is ideal to assess fracture complexity and dental involvement.

Postoperative CT is recommended to assess the surgical results.


Cone beam CT technology for craniomaxillofacial surgery provides additional precision in 3D planning.

The soft tissue resolution is inferior to conventional CT.


3D printing of the skull provides for precise surgical planning.

The model can be used for:

  • Implant selection
  • Prebending of the plate
  • Practice surgery
  • Evaluation of surgical results

The diagnostic yield of plain skull radiographs is very limited compared to CT. It should only be used alone if CT is unavailable. Diagnostic imaging of the entire skull is recommended because mandibular fractures can be associated with other skull trauma.

MRI or ultrasound can be helpful for soft tissue injuries but are not included in the standard diagnostic work up.

Imaging for rostral mandible fractures

Dental imaging and computed tomography are recommended to identify other possible fractures.

Clinical signs

Clinical signs of rostral mandibular fractures include:

  • Skeletal malocclusion
  • Soft tissue trauma
  • Dysfunction and pain when eating
  • Pain on palpation