Applications of 3D Maxillary Dental Arch Scanning for Mathematical Prediction of Orthodontic Treatment need for Complete Unilateral Cleft Lip and Palate Patients

摘要

Cleft lip and/or palate is the most frequently occurring congenital anomaly in the cranio-facial area. Effective treatment planning for such patients would allow them to avoid secondary deformation of dental arches and malocclusions as well as to minimize treatment time and costs. Orthodontically critical period for treatment of such patients is the mixed dentition period, when intensive growth and development of maxillo-facial system takes place. Individuals who have undergone surgical repair of a cleft lip and palate exhibit marked restriction of mid-face growth anteroposteriorly and transversally [1]. This is attributed to the restraining effect of the scar tissue. The aim of the study was to establish the most informative morphological criteria of maxillary dental arch allowing to predict the need for orthodontic treatment and to develop the mathematical model predicting the need for orthodontic treatment of complete unilateral cleft lip and palate during the period of mixed dentition.