Dental arch relationships after two-flap palatoplasty in Taiwanese patients with unilateral cleft lip and palate.

The authors evaluated the dental arch relationships of patients with unilateral cleft lip and palate treated with two-flap palatoplasty at the Chang Gung Craniofacial Center, Taipei, Taiwan, and compared them with the 6 centers from the Eurocleft study. Intraoral dental photographs of 60 consecutively treated Taiwanese patients with complete unilateral cleft lip and palate were used. The dental arch relationships were rated with the Goslon yardstick and compared with the Goslon outcome of the 6 center Eurocleft study. The strength of agreement of rating was assessed with quadratic-weighted kappa statistics. Inter- and intra-examiner agreements were high. 75% of patients were classified into poor or very poor categories, and the mean Goslon score was 3.92. These results showed no significant difference with Eurocleft center D, which had relatively poor treatment outcome. These data suggest that intraoral dental photographs provide a reliable method for rating dental arch relationships. Dental arch relationships in patients with unilateral cleft lip and palate at Chang Gung Craniofacial Center were unfavorable. This seemed to be attributable to the surgical procedures and racial differences in craniofacial morphology.