International Journal of Orthodontic Rehabilitation

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 11  |  Issue : 1  |  Page : 1--8

Comparative evaluation of perioral soft tissue of skeletal normal Class I and Class II Division 1 subjects: A lateral cephalometric study


Jeevan M Khatri, Nikita Babasaheb Sanap 
 Department of Orthodontics and Dentofacial Orthopaedics, CSMSS Dental College and Hospital, Aurangabad, Maharashtra, India

Correspondence Address:
Dr. Nikita Babasaheb Sanap
CSMSS Dental College, Staff Quarter, Flat No. 6, Kanchanwadi, Aurangabad - 431002, Maharashtra
India

Objective: This study aimed to evaluate and compare shape variability of soft-tissue outline of skeletal Class II Division 1 patients with various vertical patterns (low, moderate, and high SN-MP angles) and skeletal normal Class I occlusion patients and to evaluate correlative skeletal and dental variables affecting soft-tissue thickness using cephalometric analysis. Materials and Methods: Sixty patients were selected with Class I normal occlusion and Class II Division 1 and divided into four groups based on horizontal and vertical skeletal pattern (SN-MP angles) on lateral cephalograms as Group I (normal occlusion), Group II-L (low angle <27°), Group II-N (normal angle 27°–36°), and Group II-H (high angle ≥ 37°). The correlation and multiple linear regression analysis were used to determine skeletal and dental variables influencing soft tissue characteristics. Results: The skeletal Class II patients with a high mandibular plane angle had significantly greater values than the skeletal Class II patients with a low mandibular plane angle for basic lower lip thickness and lower lip length. The measurements in perioral soft-tissue thickness were correlated with an inclination of the upper and lower incisors along with facial depth and facial length in skeletal Class II Division 1 patients. Conclusion: Lip strain, lip thickness, and dental inclination must be evaluated based on various skeletal patterns for balanced perioral muscle activity.


How to cite this article:
Khatri JM, Sanap NB. Comparative evaluation of perioral soft tissue of skeletal normal Class I and Class II Division 1 subjects: A lateral cephalometric study.Int J Orthod Rehabil 2020;11:1-8


How to cite this URL:
Khatri JM, Sanap NB. Comparative evaluation of perioral soft tissue of skeletal normal Class I and Class II Division 1 subjects: A lateral cephalometric study. Int J Orthod Rehabil [serial online] 2020 [cited 2024 Mar 28 ];11:1-8
Available from: https://www.orthodrehab.org/article.asp?issn=2349-5243;year=2020;volume=11;issue=1;spage=1;epage=8;aulast=Khatri;type=0