Comparison of Reference Distance of soft tissues of face using Direct and Indirect method:A cross-sectional study

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Original Article

Author Details : Shobhit Saxena*, Bhushan Bhavsing Thoke, Anagha Agrawal, Veerendra V. Kerudi, Mrunal Aley, Shweta Mishra

Volume : 5, Issue : 2, Year : 2021

Article Page : 6-12

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Abstract

Background: Orthodontic diagnosis involves development of a comprehensive database of pertinent information which is derived from case history, clinical examination and other diagnostic aids such as study cast radiographs and photographs. One of the most important is to evaluate the soft tissues of the face.
Aim: To classify the reliability of the five reference distances Sa-Sba (superior auricula- subauricula), T-Ex (tragus-exocanthion) on the profile view, and Ex-Ex (exocanthion- exocanthion), En-En (endocanthion-endocanthion), and P-P (pupil center-pupil center) on the frontal view.
Methodology: Total 100 subjects were included in this cross-sectional study of 18-13 years of age. Direct measurements were taken directly on face using calliper. Indirect measurements were taken on the photographs that were taken and subjected into software for measurement. Measurements taken by both methods were compared using paired t test.
Result: Differences between the direct and indirect measurements of N-Sn, N-Prn, Prn-Sn, Sn- Sto and Sn-Me in both the genders were statistically significant as well as for direct measurements and indirect measurements derived from Sa-Sba reference line.
Conclusion: The findings from this study can be incorporated into routine orthodontic records, diagnosis and treatment planning.

Keywords: Reference distance, Soft tissue, Direct method, Indirect method, UTHSCSA- ImageTool.

How to cite : Saxena S, Thoke B B, Agrawal A, Kerudi V V, Aley M, Mishra S, Comparison of Reference Distance of soft tissues of face using Direct and Indirect method:A cross-sectional study. J Contemp Orthod 2021;5(2):6-12

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