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Indian Journal of Forensic Odontology

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Morphometric Evaluation of Nasolacrimal Canal in Paediatric Population of North India: A CBCT Study

Akhilanand Chaurasia, Assistant Professor, Department of Oral Medicine & Radiology, Faculty of Dental Sciences, King George’s Medical Unniversity, Lucknow, Uttar Pradesh 226003, India. , Akhilanand Chaurasia* , Gaurav Katheriya** , Nida Khan***

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Indian Journal of Forensic Odontology 10(2):p 67-73, Jul-Dec 2017. | DOI: DOI: http://dx.doi.org/10.21088/ijfo.0974.505X.10217.2

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Abstract

Objective: This study aims at age and sex related changes in mediolateral diameter of nasolacrimal duct. The mathmetical equations derived from linear regression analysis on the basis of mediolateral diameter of nasolacrimal duct is used in determination of age of study subjects however sex of study subjects can be predicted on the basis of mediolateral dimension of nasolacrimal duct by discriminant function analysis using Fischer’s exact test. Material and Methods: The CBCT images of 154 pediatric subjects were analysed prospectively. All the CBCT images are obtained at 90 Kvp,4 mA for 11.3 seconds at FOV(17"x13.5") voxel size of 300. The mediolateral diameter of nasolacrimal duct are measured by using Trophy Dicom Ink software programme on axial images (DICOM images). Results: The study population consists of 154 pediatric subjects aged between 6 and 17 years with a mean age of 12.38±3.07 years. The mediolateral dimensions in male and female was statistically not significant (P>.05). The mean mediolateral dimension was statistically not significant (P>.05) in age groups. M/L diameterof nasopalatine duct is directly associated with age and demonstrate a significant positive relation. Conclusion: The age and sex issues in medico-legal cases and forensic anthropology can be resolved by measurements of nasopalatine duct.

Keywords: Nasopalatine Duct; Cone Beam Computed Tomography; Maxilla. 

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DOI: DOI: http://dx.doi.org/10.21088/ijfo.0974.505X.10217.2

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