Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/47020
Title: Optical sensor based system to monitor caries activity
Authors: Shrestha, A.
Tahir, R.
Kishen, A. 
Keywords: Absorption
Caries
Mutans streptococci
Optical sensor
PH
Saliva
Issue Date: 2007
Source: Shrestha, A.,Tahir, R.,Kishen, A. (2007). Optical sensor based system to monitor caries activity. Progress in Biomedical Optics and Imaging - Proceedings of SPIE 6633 : -. ScholarBank@NUS Repository.
Abstract: The aim of the study is to evaluate the ability of a visible light based spectroscopic sensor system to monitor caries activity in saliva. In this study an optical sensor is utilized to monitor the bacterial-mediated acidogenic profile of stimulated saliva using a photosensitive pH indicator. Microbiological assessment of the saliva samples were carried out using the conventional culture methods. In addition, the shifts in the pH of saliva-sucrose samples were recorded using a pH meter. The absorption spectra obtained from the optical sensor showed peak maxima at 595nm, which decreased as a function of time. The microbiological assessment showed increase in the bacterial count as a function of time. A strong positive correlation was also observed between the rates of decrease in the absorption intensity measured using the optical sensor and the decrease in pH measured using the pH meter. This study highlights the potential advantages of using the optical sensor as a sensitive and rapid chairside system for monitoring caries activity by quantification of the acidogenic profile of saliva. © 2007 SPIE-OSA.
Source Title: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
URI: http://scholarbank.nus.edu.sg/handle/10635/47020
ISBN: 0819467774
ISSN: 16057422
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

81
checked on Dec 9, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.