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ORIGINAL ARTICLE
Year : 2020  |  Volume : 14  |  Issue : 2  |  Page : 52-58

Determination of the comparative accuracy of manual, semi-digital, and fully digital cephalometric tracing methods in orthodontics


1 Army Dental Centre (Research and Referral), Delhi, India
2 Dte Gen Dental Services, New Delhi, India

Correspondence Address:
Rajat Mitra
Army Dental Centre (Research and Referral), Delhi - 110 010
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JODD.JODD_24_20

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Introduction: The present study was aimed at comparing the accuracy of cephalometric tracing in by the manual, semi-digital, and fully digital cephalometric tracing methods in orthodontics. Materials and Methods: The present study was conducted in the department of orthodontics of a tertiary care government hospital with clearance from the Institutional Ethical Committee. Thirty lateral cephalograms were evaluated using three different method: Group I-Print of lateral cephalogram was traced manually on an acetate sheet. Group II-the digital images of cephalograms were traced on screen using the NNT (NewTom Image Viewer) software. Group III-digital images traced using Nemoceph™ software. Ten angular and eight linear variables were measured. Inter-group comparison was made using one-way ANOVA measure followed by post hoc Tukey's Honest Significant Difference test. Results: Intra-class correlation coefficients showed acceptable agreement in all three groups, i.e., Group I (0.281), Group II (0.11), and Group III (0.056). The one-way ANOVA test revealed a significant difference between groups for two variables. i.e., “EL-Max” and “EL-Mand.” The difference was present between Groups I and II i.e., “EL-Max” (P < 0.000) and “EL-Mand” (P < 0.02) respectively. Conclusion: The present study found no significant difference between manual, semi-digital, and fully digital cephalometric tracing with good agreement among all variables except two linear variables, which were traced more accurately in semi-digital method. The preference of using on particular technique can be based on the availability, expertise, and ease of availability.


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