An uncommon cleft subtype of unilateral cleft lip and palate.
The finding that the vomer plays a crucial role in maxillary growth suggests that the bilateral cleft configuration of unilateral cleft lip and palate (UCLP), in which the vomer is detached from the non-cleft-side secondary hard palate, negatively influences palatal development, and this hypothesis was tested. Sixty persons with complete UCLP, including those with the vomer detached from (n = 30, b-UCLP) and attached to (n = 30, u-UCLP) the secondary hard palate, were analyzed morphologically, with the use of cast models taken at 10 days, 3 mos, and 12 mos of age. The anterio-posterior palatal length at 12 mos of age in those with b-UCLP was significantly shorter than that in those with u-UCLP, by 8.7% (p < 0.05). In addition, palatal width development in the first year in those with b-UCLP was also significantly retarded. These results suggest that the uncommon bilateral cleft subtype in UCLP should be included in the cleft classification.
Yamanishi
T
T
First Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka, Japan. yaman2@dent.osaka-u.ac.jp
Kobayashi
C
C
Tsujimoto
I
I
Koizumi
H
H
Miya
S
S
Yokota
Y
Y
Okamoto
R
R
Iida
S
S
Aikawa
T
T
Kohara
H
H
Nishio
J
J
Kogo
M
M
D000367:Age Factors; D000539:Alveolar Process / Q000254:growth & development / Q000473:pathology; D002508:Cephalometry; D002971:Cleft Lip / Q000145:classification* / Q000473:pathology / Q000601:surgery; D002972:Cleft Palate / Q000145:classification* / Q000473:pathology / Q000601:surgery; D003724:Dental Arch / Q000254:growth & development / Q000473:pathology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008437:Maxilla / Q000254:growth & development / Q000473:pathology; D003765:Models, Dental; D009300:Nasal Septum / Q000002:abnormalities / Q000254:growth & development / Q000473:pathology; D010158:Palatal Obturators; D021362:Palate, Hard / Q000254:growth & development / Q000473:pathology; D012189:Retrospective Studies