Evaluation of Horizontal Lip Position in Adults with Different Skeletal Patterns: A Cephalometric Study

Aim: To evaluate sexual dimorphism in horizontal lip position in adults with different skeletal patterns. Material and Methods: The sample comprised of 120 patients (Females 18 years and above, Males 21 years and above) with no history of previous orthodontic treatment or functional jaw orthopaedic treatment. They were divided into different groups based on the ANB angle and gender. Group I and II included 30 males and 30 females with skeletal class I malocclusion (ANB 0-4 degree). Group III and IV included 30 males and 30 females with skeletal class II malocclusion respectively (ANB above 4 degree). Results: When comparison between males and females (Class I+Class II) was done S-line (p<0.001), B-line (p<0.001), E-line (p<0.001), Holdaways angle (p<0.001) and Merrifi eld angle (p<0.001) were found to be statistically signifi cant. S-line (p<0.001), E-line (p<0.001) and Holdaways angle (p<0.001) were found to be statistically signifi cant when comparison was done between males and females (Class I). When comparison was done between males and females (Class II) only Holdaways angle (p<0.001) showed a signifi cant statistical difference. Conclusion: Sexual dimorphism was found in various lip parameters. Signifi cant amount of differences were found between Class I and Class II (male and female) subjects. Research Article Evaluation of Horizontal Lip Position in Adults with Different Skeletal Patterns: A Cephalometric Study Vinay V Umale1, Kamlesh Singh2, Aftab Azam3, Madhvi Bhardwaj4 and Rohit Kulshrestha5* 1Post Graduate Student, Department of Orthodontics and Dentofacial Orthopedics, Saraswati Dental College, Lucknow, Uttar Pradesh, India 2Professor, Department of Orthodontics and Dentofacial Orthopedics, Saraswati Dental College, Lucknow, Uttar Pradesh, India 3Reader, Department of Orthodontics and Dentofacial Orthopedics, Saraswati Dental College, Lucknow, Uttar Pradesh, India 4Reader, Department of Orthodontics and Dentofacial Orthopedics, Saraswati Dental College, Lucknow, Uttar Pradesh, India 5Post Graduate Student, Department of Orthodontics and Dentofacial Orthopedics, Saraswati Dental College, Lucknow, Uttar Pradesh, India *Address for Correspondence: Dr. Rohit Kulshrestha, Post Graduate Student, Department of Orthodontics and Dentofacial Orthopedics, Room no. 3, PG Boys Hostel, Saraswati Dental College, Lucknow, Uttar Pradesh, India, Email: [email protected] Submitted: 28 February 2017 Approved: 09 March 2017 Published: 10 March 2017 Copyright: 2017 Umale, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.