title: Absent maxillary lateral incisor as evidence of poor midfacial growth in unilateral cleft lip and palate.
abstract: OBJECTIVE
  The absence of a maxillary permanent lateral incisor in patients with unilateral cleft lip and palate (UCLP) may affect the dental arch relationship. An analysis is performed to investigate the relationship between the maxillary-mandibular dental relationship and the status of the maxillary permanent lateral incisor.
  
  
  METHODS
  Patients with non-syndromic UCLP were analysed using the GOSLON Yardstick to assess maxillary-mandibular dental relationship on pre-expansion orthodontic study models. Absence of the permanent upper lateral incisor on the cleft side was assessed from medical records and dental radiographs.
  
  
  RESULTS
  A total of 83 subjects were identified: 54 males and 29 females, with 54 having a missing lateral incisor on the cleft side. There was a significant relationship between the GOSLON Yardstick score and the absence of the maxillary permanent lateral incisor on the cleft side (p<0.05). Of those in GOSLON categories 4 and 5, 78% had a missing lateral incisor compared to 42.3% in GOSLON 1 and 2.
  
  
  CONCLUSIONS
  Missing lateral incisor may be an indicator of severity of dental arch discrepancy.
authors: Department of Plastic Surgery, Birmingham Children's Hospital, NHS Foundation Trust, Birmingham, UK; University of Birmingham, Edgbaston, Birmingham, UK.
authors: Joseph
authors: J
authors: Hardwicke
authors: Birmingham Dental Hospital, Birmingham, UK.
authors: Purnima
authors: P
authors: Chhabra
authors: Department of Plastic Surgery, Birmingham Children's Hospital, NHS Foundation Trust, Birmingham, UK. Electronic address: bruce.richard@bch.nhs.uk.
authors: Bruce
authors: B
authors: Richard
mesh_terms: D000539:Alveolar Process / Q000002:abnormalities; D000848:Anodontia / Q000209:etiology*; D002971:Cleft Lip / Q000150:complications* / Q000601:surgery; D002972:Cleft Palate / Q000150:complications* / Q000601:surgery; D005260:Female; D006801:Humans; D007180:Incisor / Q000002:abnormalities*; D007223:Infant; D008297:Male; D008437:Maxilla / Q000002:abnormalities; D008445:Maxillofacial Development; D003765:Models, Dental; D012189:Retrospective Studies