The prediction of restoration of a positive overjet in unilateral cleft lip and palate.
X-ray cephalometric studies were carried out repeatedly in 92 individuals with unilateral cleft lip and palate at the age of 10 and 15 years with investigations of a possible restoration of a positive overjet in relation to the development of sagittal interalveolar relations. On the basis of this analysis was constructed a nomogram which according to the age of the patient allows to use a single easily determined X-ray cephalometric parameter for the estimation of the risk of a failure of the management aimed at the restoration of a positive overjet. The system includes critical boundaries which should be attained in the course of the treatment for the restoration of a positive overjet and it provides the possibility to check the effects of all therapeutic procedures. The simple application of the nomogram and the easy collection of data (the age and sagittal interalveolar relations) allow its use in the clinical practice as a component of the documentation on the management of the patient.
Smahel
Z
Z
Laboratory of Craniofacial Malformations, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague.
D000293:Adolescent; D002648:Child; D002971:Cleft Lip / Q000503:physiopathology / Q000601:surgery*; D002972:Cleft Palate / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D008445:Maxillofacial Development; D011237:Predictive Value of Tests; D012044:Regression Analysis