title: Teeth position, eruption and temporomandibular joint ankylosis.
abstract: BACKGROUND
  Abnormality of tooth formation and position is often encountered in mandibular growth with TMJ ankylosis resulting from mandibular condylar fractures. Literature is scarce is in this phenomenon and remains largely anecdotal
  
  
  OBJECTIVE
  To study the relationship of teeth formation and position, to the age at which trauma occurred resulting in a mandibular unilateral condylar ankylosis.
  
  
  METHODS
  Retrospective qualitative analysis of orthopantomograms from archives of cases diagnosed with mandibular unilateral condylar ankylosis.
  
  
  METHODS
  Position of mandibular 2nd premolar, 1st, 2nd, 3rd molar, age at which trauma occurred
  
  
  METHODS
  Degree of impaction or normally erupted
  
  
  RESULTS
  In the ipsilateral side of trauma, 66.67% of 2nd premolars, 44.4% of 1st molar, 88.89% of 2nd molar and 44.4% of 3rd molars were abnormal, while in the contralateral normal side and 22.2% of 3rd molar exhibited abnormality.
  
  
  CONCLUSIONS
  In mandible, post condylar fracture growth brings about deficiency in the length of corpus. The deficiency of length brings teeth abnormality - in terms of its growth and eruption. The abnormality in the position of teeth is related to the age at which trauma occurred.
  
  
  CONCLUSIONS
  Evidence of tooth formation and eruption being affected in mandibular growth after mandibular condylar fractures and this phenomenon appears to be age related.
authors.affiliation: Oral and Maxillofacial Surgeon, Chennai, India  ; Balaji Dental & Craniofacial Hospital, 30, KB Dasan Road, Teynampet Chennai-18, India.
authors.forename: S M
authors.initials: SM
authors.lastname: Balaji
keywords: Ankylosis; Impacted teeth