Original Research Article
Year: 2019 | Month: October-December | Volume: 4 | Issue: 4 | Pages: 12-15
Establishing Downs Cephalometric Norms among the South Indian Population: A Cross-Sectional Study
Dr Ramya Thilagam1, Dr Lingesh Kumar N1, Dr Poorna Devadoss2, Dr Kathikeyan2, Dr Breena R Kumar3
1Post-Graduate Student, 2Proffessor,
Department of Orthodontics and Dentofacial Orthopaedics, Thai Moogambigai Dental College and Hospital, Chennai.
3Post-Graduate student, Department of Orthodontics and Dentofacial Orthopaedics, Maharaja Ganga Singh Dental College and Hospital, Sri Ganganagar, Rajasthan.
Corresponding Author: Dr Ramya Thilagam
ABSTRACT
Aim: Focus to study the normal dento-facial relationship of south Indian population with the aid of Downs Cephalometric analysis.
Materials And Method: The present study comprised samples of lateral cephalograms taken in natural head position of Total of 30 participants, with 15 males and 15 female candidates. Each cephalograms was traced, analyzed and interpreted using the landmarks and values given in Down’s analysis. The student’s t test, standard deviation and mean deviation were calculated to compare between two groups.
Results: The present study showed a Persuading result, that majority of the south Indian population have a class 1 skeletal pattern with Angle of convexity 2.19ᶱ . With Angle of convexity mean value among females 2.24 and among male 2.14. The study also highlights that Mandibular plane angle 21.05ᶱ indication horizontal growth. The south Indian population also manifest Proclined incisors with Inter incisal angle of about 116.04ᶱ and flatter occlusal plain
Conclusion: Mild significant differences were found between South Indian men and women when compared with Caucasians parameters. The study conludes that different set of cephalometric norms for different ethnic groups should be formulated so as to guide the orthodontist and surgeon to optimize the treatment plan based on local norms.
Keywords: Cephalometric norms, Down’s analysis,South Indian, Ethnic norms, Racial groups, Indian population.