title: Dental arch relationships in Turkish patients with complete unilateral cleft lip and palate born between 1976 and 1990: a comparison with eurocleft.
abstract: OBJECTIVE
  To compare the dental arch relationships of Turkish patients with complete unilateral cleft lip and palate (UCLP) with the results reported for participants in the Eurocleft study.
  
  
  METHODS
  Study models of 109 patients with complete UCLP from five university clinics in Turkey were evaluated (clinic A = 25 patients, clinic B = 23 patients, clinic C = 20 patients, clinic D = 21 patients, and clinic E = 20 patients). The mean age of the patient cohort was nine years old (range = 8-11 years old), and the cohort was born between 1976 and 1990.
  
  
  METHODS
  The examiners rated the three-dimensional (3D) models using the GOSLON Yardstick. The scores were compared with those from the Eurocleft centers: E1(B), E2(E), E3(A), E4(F), E5(C), and E6(D). Intra- and interexaminer agreements were evaluated using weighted kappa statistics.
  
  
  RESULTS
  The mean GOSLON scores for the Turkish clinics were as follows: clinic A = 3.16, clinic B = 3.13, clinic C = 3.25, clinic D = 3.67, and clinic E = 3.70. Scores for three of the Turkish clinics (A, B, and C) were significantly worse than the scores for the three best Eurocleft centers, E1(B), E2(E), and E3(A) (P < .001, P < .001, and P < .05, respectively). Scores for two of the Turkish clinics (D and E) were similar to those for Eurocleft center E6(D) but worse than the scores for the other Eurocleft centers (P < .01, P < .001, respectively).
  
  
  CONCLUSIONS
  This was the first study in which three-dimensional models were used to derive scores to compare with those of the Eurocleft centers. According to the results of analysis of 109 3D models, 50.4 % of the patients in Turkey were classified as GOSLON score 4 and 5. This may have been attributable to poor surgical procedures, low-volume surgeons, and the decentralized treatment approach in Turkey between 1985 and 2000. Further research is needed to assess the situation in Turkey in more recent years.
authors: Servet
authors: S
authors: Dogan
authors: Gunvor
authors: G
authors: Semb
authors: Elif
authors: E
authors: Erbay
authors: Toros
authors: T
authors: Alcan
authors: Aslı
authors: A
authors: Uzel
authors: Ilken
authors: I
authors: Kocadereli
authors: William C
authors: WC
authors: Shaw
mesh_terms: D002648:Child; D002971:Cleft Lip / Q000601:surgery*; D002972:Cleft Palate / Q000601:surgery*; D003724:Dental Arch / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008297:Male; D008953:Models, Anatomic; D014421:Turkey