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. 2017 Jul-Aug;7(4):214-217.
doi: 10.4103/jispcd.JISPCD_182_17. Epub 2017 Jul 31.

A Comparative Evaluation of Mixed Dentition Analysis on Reliability of Cone Beam Computed Tomography Image Compared to Plaster Model

Snigdha Gowd  1 , T Shankar  2 , Samarendra Dash  1 , Nivedita Sahoo  1 , Suravi Chatterjee  1 , Pritam Mohanty  1
Affiliations

A Comparative Evaluation of Mixed Dentition Analysis on Reliability of Cone Beam Computed Tomography Image Compared to Plaster Model

Snigdha Gowd et al. J Int Soc Prev Community Dent. 2017 Jul-Aug.

Abstract

Aims and objective: The aim of the study was to evaluate the reliability of cone beam computed tomography (CBCT) obtained image over plaster model for the assessment of mixed dentition analysis.

Materials and methods: Thirty CBCT-derived images and thirty plaster models were derived from the dental archives, and Moyer's and Tanaka-Johnston analyses were performed. The data obtained were interpreted and analyzed statistically using SPSS 10.0/PC (SPSS Inc., Chicago, IL, USA). Descriptive and analytical analysis along with Student's t-test was performed to qualitatively evaluate the data and P < 0.05 was considered statistically significant.

Results: Statistically, significant results were obtained on data comparison between CBCT-derived images and plaster model; the mean for Moyer's analysis in the left and right lower arch for CBCT and plaster model was 21.2 mm, 21.1 mm and 22.5 mm, 22.5 mm, respectively.

Conclusion: CBCT-derived images were less reliable as compared to data obtained directly from plaster model for mixed dentition analysis.

Keywords: Digitalization; mixed dentition; model analysis; plaster models; reliability.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Plaster cast and digital caliper
Figure 2
Figure 2
Sagittal section of cone beam computed tomography at occlusal level
See this image and copyright information in PMC

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