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Year : 2020  |  Volume : 32  |  Issue : 3  |  Page : 259-265

Precision of 3D laser optical in assimilation of experimental bite marks in chocolate

1 Department of Oral Medicine and Radiology, MNR Dental College and Hospital, Sangareddy, Telangana, India
2 Department of Oral Medicine and Radiology, Dayananda Sagar College of Dental Sciences, Bengaluru, Karnataka, India
3 Department of Oral Medicine and Radiology, Sharavathi Dental College and Hospital, Shimoga, Karnataka, India

Correspondence Address:
Dr. Alekhya Kanaparthi
Department of Oral Medicine and Radiology, MNR Dental College & Hospital, Sangareddy -502 001, Telangana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jiaomr.jiaomr_84_20

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Aims: To analyze the accuracy of a three-dimensional (3D) optical scanner-GOM® (Gesellschaft für Optische; Messtechnik, Braunschweig Germany) model-ATOS triple II optical Scanner (Advanced topometric Sensor) in examination and identification of experimental bite marks (BM) in chocolate using Styrofoam exemplar (SE). Materials and Methods: The study was conducted with 25 volunteers from whom the dental cast exemplar (CE), SE, and experimental BMs in chocolate, were made. These were then digitized using the GOM® ATOS optical scanner and 3D models were generated using GOM® ATOS software. Data analysis was performed using independent t-test for inferential statistics. Results: On 3D analysis, the experimental BM matched with the presumed biters correctly using both SE and CE. The mean percentage matching of BM vs SE was found to be 92.55 ± 1.757, and in BM vs CE, the mean matching percentage was found to be 96.09 ± 1.311. Statistical analysis of the data was obtained using independent t-test, and the mean difference in percentage matching was significant (P < 0.05) Conclusion: Three-dimensional BM analysis using 3D optical scanner proved to be a reliable, accurate, and permanent method of documentation compared to the conventional two-dimensional methods.

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