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Journal of Biomedical Optics

Habits with killer instincts: in vivo analysis on the severity of oral mucosal alterations using autofluorescence spectroscopy
Author(s): S. Nazaeer Shaiju; Saraswathy Ariya; Ramapurath S. Jayasree; Rajasekharan Asish; Padippurakkakath S. Haris; Balan Anita; Gupta A. Kumar
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Paper Abstract

Oral habits like chewing and smoking are main causes of oral cancer, which has a higher mortality rate than many other cancer forms. Currently, the long term survival rate of oral cancer is less than 50%, as a majority of cases are detected very late. The clinician's main challenge is to differentiate among a multitude of red, white, or ulcerated lesions. Hence, new noninvasive, reliable, and fast techniques for the discrimination of oral cavity disorders are to be developed. This study includes autofluorescence spectroscopic screening of normal volunteers with and without lifestyle oral habits and patients with oral submucous fibrosis (OSF). The spectra from different sites of habitués, non-habitués, and OSF patients were analyzed using the intensity ratio, redox ratio, and linear discriminant analysis (LDA). The spectral disparities among these groups are well demonstrated in the emission regions of collagen and Flavin adenine dinucleotide. We observed that LDA gives better efficiency of classification than the intensity ratio technique. Even the differentiation of habitués and non-habitués could be well established with LDA. The study concludes that the clinical application of autofluorescence spectroscopy along with LDA, yields spontaneous screening among individuals, facilitating better patient management for clinicians and better quality of life for patients.

Paper Details

Date Published: 1 August 2011
PDF: 14 pages
J. Biomed. Opt. 16(8) 087006 doi: 10.1117/1.3608923
Published in: Journal of Biomedical Optics Volume 16, Issue 8
Show Author Affiliations
S. Nazaeer Shaiju, Sree Chitra Tirunal Institute for Medical Sciences & Technology (India)
Saraswathy Ariya, Sree Chitra Tirunal Institute for Medical Sciences & Technology (India)
Ramapurath S. Jayasree, Sree Chitra Tirunal Institute for Medical Sciences & Technology (India)
Rajasekharan Asish, Government Dental College, Thiruvananthapuram (India)
Padippurakkakath S. Haris, Government Dental College, Thiruvananthapuram (India)
Balan Anita, Government Dental College, Thiruvananthapuram (India)
Gupta A. Kumar, Sree Chitra Tirunal Institute for Medical Sciences & Technology (India)

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