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Laser Engraved 2D and QR Code on Titanium Plates Denture Mar | 92092

Journal of Research in Medical and Dental Science
eISSN No. 2347-2367 pISSN No. 2347-2545

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Laser Engraved 2D and QR Code on Titanium Plates Denture Markers-An Observational Study

Author(s): Deepak Kamalanathan*, Nancy Monica R, Sridharan R

Abstract

Aim: The purpose of this study was to determine the reliability of 2D (Two dimensional) and QR (Quick Response) coded titanium chips in heat cured acrylic blocks after being treated with heat and acid. Materials and Method: 2D and QR codes were generated using patient?s Aadhaar number and laser engraved into 25 titanium chips of 1.5 X 1.5 cm with thickness of 0.3mm. Laser engraved titanium chips with the patient?s information were incorporated into acrylic blocks of 2cm X 2cm with thickness of 5cm. These acrylic resin blocks were categorized into five groups: I, II, III, IV, and V. Each group contain 5 acrylic blocks, in which first three groups were subjected to various heat treatments in electrical furnace at temperature 350 C, 500C, and 750C and last two groups were treated with strong acid like 40% hydrochloric acid and 99% sulfuric acid for an hour. After heat and acid treatments, these 2D and QR codes were scanned using smart phones to extract the patient?s information. Ethics: The Institutional Human Ethics Committee (CARE IHEC-II) has reviewed your proposal titled ?Laser engraved 2d and qr code on titanium plates?denture markers-an observational study? on 23.12.2021. Ref No: IHEC-II/0135/21. Results: In Group I there was mild distortions of acrylic blocks with any loss in reliability of QR code. In Group II and III QR codes were readable but the acrylic blocks were destroyed. In Group IV and V there were no losses in readability of QR code. Conclusion: Within the study's limitations, it indicates that 2D and QR coded titanium plate denture markers are reliable under heat (750C) and acid treatment. Thus, in forensic odontology, 2D and QR coded titanium plates are a more reliable and simplest method of denture marking and identification.

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