macrognathia

Introduction

abnormally large jaw

Etiology

• hereditary
• pituitary gigantism
  • acromegaly
• Paget's disease of bone (osteitis deformans)
• leontiasis ossea

Clinical manifestations

• mandibular protrusion (when mandible is affected)
• 'gummy smile' (when maxilla is affected)
• chin may appear prominent (when mandible is affected)

Management

• surgery: osteotomy

More general terms

• bone disease; osteopathia
• malformation; dysmorphism