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Original Research

Open Access

Evaluation of fluoride release from teeth after topical application of NaF, SnF2 and APF and antimicrobial activity on mutans streptococci

  • N.D. Shashikiran1,*,
  • V.V. Subba Reddy1
  • Raju Patil2

1Department of Pedodontics and Preventive Dentistry, College of Dental Sciences

2Department of Pedodontics and Preventive Dentistry, College of Dental Sciences which is affiliated to Rajiv Gandhi University of Health Sciences, Karnataka, Bangalore, INDIA)

DOI: 10.17796/jcpd.30.3.k7t5648641322k00 Vol.30,Issue 3,May 2006 pp.239-246

Published: 01 May 2006

*Corresponding Author(s): N.D. Shashikiran E-mail: drshashikiran@yahoo.com

Abstract

The objectives of this study were to evaluate and compare the amount and pattern of fluoride release from teeth after topical application of 2% NaF, 8% SnF2 and 1.23% APF at different time intervals. The growth inhibitory effects of this released fluoride ion was assessed on mutans streptococci (MS) and correlated with the fluoride release. Forty premolars divided into four groups were subjected to different topical fluoride treatments. All the teeth were immersed individually in deionized water and were transferred to containers at 1 hour, 1 day and 1 week time intervals. 240 samples in total were used for fluoride estimation by ion selective electrode method and the samples from the other sub-group were used for evaluation of antimicrobial activity on mutans streptococci (MS) by bacterial inhibition assay method. The results showed that the highest fluoride release (7.83±0.55ppm) was seen in SnF2 treated specimens, as compared to that of NaF (3.71±0.60ppm ) and APF (3.30±0.51ppm), the difference being statistically significant (P<0.01).This was observed immediately after 1 hour, followed by a drastic reduction thereafter. No zones of inhibition were observed at the released fluoride con-centrations at different time intervals in the different groups. In conclusion: 8% SnF2 is expected to have greater anticaries property from the high fluoride releasing property for prolonged period of time.

Cite and Share

N.D. Shashikiran,V.V. Subba Reddy,Raju Patil. Evaluation of fluoride release from teeth after topical application of NaF, SnF2 and APF and antimicrobial activity on mutans streptococci. Journal of Clinical Pediatric Dentistry. 2006. 30(3);239-246.

References

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