title: An unusual complication of mandibular distraction.
abstract: BACKGROUND
  The authors present an unusual complication of mandibular distraction in a child with the curious condition of multiple pterygium syndrome is presented.
  
  
  METHODS
  The patient was a Caucasian male with severe pterygia in his neck. As a result of his limited mouth opening and restricted upper airway leading to obstruction, he underwent lengthening of his mandible by distraction, which significantly improved his breathing. During his follow-up, it was observed that an unusually elongated permanent molar was present in an abnormal position.
  
  
  CONCLUSIONS
  This case highlights the need to carefully plan the sites for osteotomy and the potential for damage to the developing permanent dentition in young children.
authors.affiliation: Australian Craniofacial Unit, Women's and Children's Hospital, 72 King William Road, North Adelaide, South Australia 5006, Australia. sanjayparashar2001@yahoo.com
authors.forename: S Y
authors.initials: SY
authors.lastname: Parashar
authors.forename: P J
authors.initials: PJ
authors.lastname: Anderson
authors.forename: D J
authors.initials: DJ
authors.lastname: David
mesh_terms: D002675:Child, Preschool; D003286:Contracture / Q000151:congenital; D003795:Dental Sac / Q000293:injuries; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000002:abnormalities / Q000601:surgery*; D008963:Molar / Q000002:abnormalities; D009333:Neck / Q000002:abnormalities; D019857:Osteogenesis, Distraction / Q000009:adverse effects* / Q000295:instrumentation; D010855:Pierre Robin Syndrome / Q000473:pathology; D011183:Postoperative Complications; D020181:Sleep Apnea, Obstructive / Q000209:etiology; D013577:Syndrome; D014313:Trismus / Q000209:etiology