ABSTRACT
This study was done as there is a need to evaluate separate hard and soft tissue parameters for UCLP as we cannot compare the deformity with normal. A study by Abhilasha Yadav has defined the Burstone norms for class I subjects in Central India as compared to Caucasians. The objective is to derive norms for UCLP itself as the pattern of growth and development of bone, muscle is not normal that can be compared with any population and needs to treated, based on specific norms.METHODS75 cases of UCLP from Central India, with an age range of 18-25 yrs. were selected for the study. The COGS analysis values for Central Indian UCLP cases (falling under GOSLON 1 and 2) was established and compared with class I Caucasians and class I Central Indian subjects. The cephalograms were traced, analysed and interpreted using the landmarks and values established in Burstone analysis (cephalometric analysis for orthognathic surgery). The mean, standard deviation and Z values were calculated to compare the values between three groups.RESULTSThe Central Indian UCLP cases demonstrated decreased anterior cranial base length, upper third height of face, decreased anteroposterior maxillary length, decreased upper and lower incisor height as well as molar height, retroclined upper anterior, significantly decreased facial convexity, nasolabial angle and reduced maxillary prognathism while mandible showed prognathism.CONCLUSIONSThe study reported significant differences in certain cephalometric parameters of UCLP cases from central India population with that of Caucasian and class I central Indian population. The results obtained for central India’s UCLP cases can be used as cephalometric norms for planning orthognathic surgery specifically for cleft cases.