title: Nomogram for assessment of restoration of a positive overjet in unilateral cleft lip and palate.
abstract: In 92 patients with unilateral cleft lip and palate investigated on a long-term basis correlation-regression analysis of the development of overjet according to the development of interalveolar relations assessed in a defined method from X-ray films at the ages of 5, 10, 15 years and in adult age was implemented. The limits comprising 95% of the assembled data were also defined. Based on this analysis a formerly elaborated nomogram for age 10-15 years was extended for the whole postnatal period. Nomogram makes it possible to estimate from a single X-ray cephalometric parameter the risk of failure of the restoration of a positive overjet according to the age of the patient. The system defines critical boundaries which must be achieved for safe restoration of a positive overjet and makes it possible to check the course of treatment. The simple work with the nomogram and readily obtainable baseline data (age and X-ray cephalometric parameter on the interalveolar relations) make its application in clinical practice possible. It can serve as part of the documentation of the patient's therapy.
authors.affiliation: Chair of Anthropology, Faculty of Natural Sciences, Charles University, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
authors.forename: Z
authors.initials: Z
authors.lastname: Smahel
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000539:Alveolar Process / Q000473:pathology; D002508:Cephalometry / Q000706:statistics & numerical data*; D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000473:pathology* / Q000601:surgery; D002972:Cleft Palate / Q000473:pathology* / Q000601:surgery; D016001:Confidence Intervals; D003766:Dental Occlusion; D005260:Female; D006801:Humans; D007180:Incisor / Q000473:pathology; D008297:Male; D008310:Malocclusion / Q000473:pathology / Q000628:therapy; D008334:Mandible / Q000473:pathology*; D008437:Maxilla / Q000473:pathology*; D010159:Palate / Q000473:pathology; D012044:Regression Analysis; D012307:Risk Factors; D017211:Treatment Failure