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Analysis of Enamel Rod End Pattern at Different Levels of Enamel and its Significance in Ameloglyphics | OMICS International | Abstract
ISSN: 2157-7145

Journal of Forensic Research
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Research Article

Analysis of Enamel Rod End Pattern at Different Levels of Enamel and its Significance in Ameloglyphics

Manjunath K1* and Sivapathasundharam B2

1Department of Oral and Maxillofacial Pathology, Farooqia Dental College and Hospital, Mysore, Karnataka, India

2Department of Oral and Maxillofacial Pathology, Meenakshi Ammal Dental College and Hospital, Chennai, Tamilnadu, India

*Corresponding Author:
Dr. Manjunath K
Department of Oral and Maxillofacial Pathology
Farooqia Dental College and Hospital
Mysore-570010, Karnataka, India
Tel: +91 8123431714
E-mail: [email protected]

Received date: March 07, 2014; Accepted date: June 13, 2014; Published date: June 20, 2014

Citation: Manjunath K, Sivapathasundharam B (2014) Analysis of Enamel Rod End Pattern at Different Levels of Enamel and its Significance in Ameloglyphics. J Forensic Res 5:235. doi: 10.4172/2157-7145.1000235

Copyright: © 2014 Manjunath K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


The aim of this study is to determining the thickness of enamel showing similar enamel rod end patterns, and extrapolating our study results to estimate the duration of time takes to change into the subsequent pattern due to in vivo brushing and its significance in ameloglyphics. Eighteen maxillary left first premolars were used in this study. Of these, three teeth were used to select appropriate abrasive paper among 80-, 400-, 600-grit silicon carbide abrasive papers and five teeth were used to check reliability of the selected abrasive paper. Ten teeth were used to analyze enamel rod end patterns. The patterns were analyzed at an interval of 1 μm thickness of enamel from the tooth surface till the change of third set of pattern to its subsequent pattern. Our study showed 600-grit silicon carbide abrasive paper abrades 1 μm thickness of enamel upon one rotation in microtome. Biometric analysis of enamel rod end patterns obtained from 10 extracted teeth revealed that 10%, 60% and 30% of enamel rod end patterns were similar up to 3 μm, 4 μm and 5 μm depth of enamel, respectively. In this study, 3-5 μm thickness of enamel showed similar enamel rod end pattern. On extrapolation our study results with earlier literature revealed that each enamel rod end pattern takes approximately 4-6 years to change into the subsequent pattern due to in vivo brushing. So, the enamel rod end pattern should record for at least every 4 years during its practical application.


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