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IP International Journal of Maxillofacial Imaging


Comparative Evaluation of Horizontal Magnification on Digital and Conventional Panoramic Images


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Author Details : Patil Prashant B, S Anusuya G.

Volume : 2, Issue : 1, Year : 2016

Article Page : 1-9


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Abstract

Aim: The aim of the study was to assess horizontal magnification on digital and panoramic radiographs and compare the magnification factor between the two.
Materials and Methods: 30 digital and 30 conventional panoramic radiographs of 30 healthy adults were taken. Impressions were made of all the patients and casts were poured. With the calipers maximum mesiodistal width of labial/buccal surface of teeth were measured and horizontal magnification was calculated for incisor, premolar and molar teeth.
Statistical analysis: ANOVA test followed by post hoc Tukey Multiple comparison test T were used. Data was analyzed using SPSS software 16.0 V.
Results: It was observed that in comparison to the measurement on the casts the digital and conventional panoramic radiographs showed significant difference of mean magnification of horizontal dimensions (p<0.001) except for maxillary anteriors in digital images (p>0.05). Further compared to digital imaging conventional images showed significant difference of mean horizontal magnification (p<0.0001). The panoramic radiographs showed significant higher magnification index than listed by the manufacturer for both panoramic machines.
Conclusion: We conclude that both digital and conventional panoramic images show horizontal magnification, further the horizontal magnification of conventional images is significantly higher than their digital counterparts. Hence horizontal panoramic measurements are unreliable.

Key words:
Conventional, Digital, Dimensional accuracy, Horizontal magnification, Panoramic radiographs

How to cite : Patil Prashant B, S Anusuya G., Comparative Evaluation of Horizontal Magnification on Digital and Conventional Panoramic Images. IP Int J Maxillofac Imaging 2016;2(1):1-9

Copyright © 2016 by author(s) and IP Int J Maxillofac Imaging. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC-BY-NC 4.0) (creativecommons.org)