Tri-dimensional maxillary growth, from infancy to 4 years of age, of patients-with cleft palate according to their cleft types

• Published in: Journal of Japanese Cleft Palate Association Vol. 7; no. 1; pp. 1 - 20
• Main Author: Mizokawa, Nobuko
• Format: Journal Article
• Language: Japanese
• Published: Japanese Cleft Palate Association 30.06.1982
• ISSN: 0386-5185; 2186-5701
• DOI: 10.11224/cleftpalate1976.7.1_1

Center for Stomatognathic Dysfanction Osaka University Dental School The purpose of this study is to clarify the tri-dimensional maxillary growth according to the cleft types of the patients with cleft lip and/or palate. A total of 118 cases were divided into the following three experimental groups: the complete unilateral(UCLP), bilateral(BCLP) cleft lip and palate, and the cleft palate alone(CPO). The subjects belonging to each group were then assigned to three developmental stages ( i. e. stage 1; just prior to lip repair, stage 2; just prior to palatal closure stage 3; at 4 years of age ). The method of determining the maxillary growth, allowing interstage comparisons and intergroup comparisons, was the measurement analysis of the tri-dimensional maxillofacial models taken from the subjects. Ten non-cleft subjects were used as a control group at the final stage to identify dimensional growth inhibition of the cleft groups. The results obtained from this study were as follows: The intergroup comparisons between the UCLP a nd the BCLP at stage 1 showed that the growth difference was notable in the anterior alveolar region as lateral segmentl displacement in the UCLP group, and was notable as protrusive incisal bone in the BCLP group. There was not much growth difference in the posterior alveolar region. The intergroup comparisons between the UCLP, the BCLP and CPO at stage 2 did not show any remarkable growth diffefences in any dimension. At stage 3, each of the three cleft groups showed growth in different directions. Remarkable forward growth inhibition of the UCLP, and remarkable downward growth inhibition of the BCLP were noted. This meant that the dimensional maxillary growth in both depth and in height did not co-ordinated with the forward and downward growth direction. The comparisons between the control and each of the cleft groups revealed the growth inhibition of the cleft groups, especially at the anterior alveolar region. The forward growth inhibition of the UCLP, the downward growth inhibition of BCLP, and both the forward and downward growth inhibition of the CPO were the characteristic findings. These results suggested that the causes for the maxillary growth inhibition in patients with cleft lip and/01palate are not only in the alveolar segmental displacement, but also could be in the disharmonious skeletal composition of the nasomaxillary complex.