title: Referral mode and pattern of malocclusion among patients attending the Lagos University Teaching Hospital, Lagos, Nigeria.
abstract: BACKGROUND
  In Nigeria, the awareness of the dentition and its role in the overall facial beauty is increasing, especially in the urban areas. The purpose of this study was to assess the demand for orthodontic treatment and the pattern of malocclusion in patients attending the Lagos University Teaching Hospital, Lagos, Nigeria.
  
  
  METHODS
  A 5-year retrospective study of 633 patients, 288 males (45.5%) and 345 females (54.5%) attending the orthodontic unit of the hospital.
  
  
  RESULTS
  The patients seen ranged from 1 to 50 years with the most frequent age group being that of 12-17 years constituting 37.5% of the total patients seen. Adult patients made up 30.7% of attending patients. Self-referred patients constituted 64.1% of this population. Class I molar relationship was predominantly occurring seen in 76.7% of patients. Anterior segment crowding was recorded in 38.7% and 43.2% of the patients for the upper and lower arch respectively. Marked increase in overjet was observed in 32.2%. Overbite discrepancies were recorded with 26.2% of patients with deep bite and 11.2% of patients with anterior open bite. A history or ongoing oral habit was recorded in 61.8% of patients.
authors.affiliation: Orthodontic Unit, Dept of Child Dental Health, College of Medicine, University of Lagos, Lagos, Nigeria.
authors.forename: O DaCosta
authors.initials: OD
authors.lastname: Oluranti
authors.forename: L Utomi
authors.initials: LU
authors.lastname: Ifeoma
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000848:Anodontia / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003796:Dental Service, Hospital / Q000706:statistics & numerical data; D005260:Female; D005500:Follow-Up Studies; D006301:Health Services Needs and Demand / Q000145:classification / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D008297:Male; D008310:Malocclusion / Q000145:classification / Q000453:epidemiology*; D008311:Malocclusion, Angle Class I / Q000453:epidemiology; D008875:Middle Aged; D009549:Nigeria / Q000453:epidemiology; D024343:Open Bite / Q000453:epidemiology; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data; D012017:Referral and Consultation / Q000145:classification / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D012737:Sex Factors; D014096:Tooth, Supernumerary / Q000453:epidemiology; D055815:Young Adult