Macrognathism

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Macrognathism
Classification and external resources

Macrognathism is the condition of abnormally large jaws. It is also called megagnathia (antonym: micrognathia).

Signs and symptoms[edit]

  • Mandibular protrusion (when mandible is affected)
  • "Gummy smile" (when maxilla is affected)
  • Ramus of mandible forms a less steep angle with body of mandible
  • Mandibular prognathism caused by excessive condylar growth
  • Chin appears prominent

Cause[edit]

Treatment[edit]

Treatment is surgical. Osteotomies may be done in case of maxillary macrognathia. Mandibular macrognathia is generally managed by resection of a portion of the mandible followed by orthodontic treatment.

References[edit]