Dental arch relationship outcomes in one- and two-stage palatoplasty for Japanese patients with complete unilateral cleft lip and palate.
To compare dental arch relationship outcomes following one- and two-stage palatal repair.



Nonrandomized, clinical trial with concurrent control.



Hokkaido University Hospital.



Sixty-eight consecutively treated Japanese patients with complete unilateral cleft lip and palate.



Thirty-one of the 68 patients underwent two-stage palatoplasty with delayed hard palate closure, and 37 patients underwent one-stage pushback palatoplasty.



Dental casts were taken at 4.9 to 6.3 (mean: 5.2) years of age in the two-stage group and at 4.0 to 6.3 (mean: 5.1) years of age in the one-stage group, and dental arch relationships were assessed using the 5-Year-Olds' Index (5-Y) by four raters and the Huddart/Bodenham Index (HB) by two raters.



Intrarater and interrater reliabilities evaluated using weighted kappa statistics were good or better for the 5-Y and HB ratings. The mean 5-Y score was 2.94 in the two-stage group and 3.13 in the one-stage group (P value was not significant). However, there was a significant difference in distributions between the groups (P < .05). The HB scores of molars were significantly greater in the two-stage group than in the one-stage group (P < .05). The rank correlation coefficients between the 5-Y and total HB score (ρ = -0.840, P < .01) and between the 5-Y and the score of the incisors in the HB (ρ = -0.814, P < .01) were significantly increased.



These results suggest that the anteroposterior relationship was not significantly different between the groups, but the transversal relationship was better in the two-stage group than in the one-stage group.
Tadashi
T
Mikoya
Toyoko
T
Shibukawa
Takafumi
T
Susami
Yoshiaki
Y
Sato
Toshimoto
T
Tengan
Hirotaka
H
Katashima
Akihiko
A
Oyama
Yusuke
Y
Matsuzawa
Yumi
Y
Ito
Emi
E
Funayama
D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000601:surgery; D002972:Cleft Palate / Q000601:surgery*; D003724:Dental Arch / Q000002:abnormalities* / Q000601:surgery*; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan; D008297:Male; D003765:Models, Dental; D016896:Treatment Outcome
5-Year-Olds' Index; Huddart/Bodenham Index; Japanese infants; dental arch relationships; unilateral cleft lip and palate