Accuracy of Mesiodistal Crown Measurements using CBCT Images: A Comparison with Plaster Models

Authors

  • Kanak Priya1, Poonam Agrawal2 , Dinesh Kumar Bagga3

DOI:

https://doi.org/10.37506/ijfmt.v14i4.11490

Keywords:

CBCT, study models, orthodontics.

Abstract

Aim: Comparison of the mesiodistal crown measurements made on plaster models and CBCT-images.
Materials & Methods: Thirty pre-existing CBCT records of the maxillary arch and type-III stone
orthodontic models, soaped and polished were used in this study. A digital vernier caliper was used to make
measurements on each cast. The largest mesiodistal crown dimension of each tooth was measured from
central incisor to the second premolar of one quadrant of the maxillary arch. The OnDemand 3D program
(Cybermed Co, Seoul, Korea) was used to convert CT DICOM images into 3D reconstructed images. The
mesiodistal crown width measured using the OnDemand 3D program.
Results: The precision of the measurements on the plaster models and on the CBCT 3D reconstructed
images were the same. There was no significant difference between them as evaluated by paired t test.
Conclusion: The distance and the precision of the measurements on the plaster models and on the CBCT
3D reconstructed images are equivalent. CBCT 3D reconstructed images can replace the process of making
plaster models.

Author Biography

  • Kanak Priya1, Poonam Agrawal2 , Dinesh Kumar Bagga3

    1
    Postgraduate Student, 2Professor, 3Professor and Head, Department of Orthodontics and Dentofacial
    Orthopedics, School of Dental Sciences, Sharda University, Greater Noida (UP)

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Published

2020-10-29

How to Cite

Accuracy of Mesiodistal Crown Measurements using CBCT Images: A Comparison with Plaster Models. (2020). Indian Journal of Forensic Medicine & Toxicology, 14(4), 312-318. https://doi.org/10.37506/ijfmt.v14i4.11490