•  
  •  
 

Chulalongkorn University Dental Journal

Publication Date

2013-01-01

Abstract

Objective To evaluate the effect of fluoride/zinc/essential oil-containing mouthrinse on fluoride uptake and microhardness in enamel. Materials and methods A double-blind randomized trial was performed. Thirty polished bovine enamel specimens (6 x 6 mm) were subjected to caries-likes lesion formation in the demineralizing solution. Then specimens were analyzed for microhardness (no difference in microhardness; p > 0.05) and divided into 3 groups (n=10/group). The fluoride and calcium contents in enamel were analyzed by fluoride electrode and atomic absorption spectrometer, respectively. The specimens in three groups were then treated with either fluoride/zinc/essential oil-containing mouthrinse (Listerine Total Care-LTC), 100 ppm NaF (positive control), or 5% ethanol (negative control) and subjected to 30 cycles of demineralization/remineralization ie. 10 min in demineralizing solution, 5 min in test solution, and 60 min in remineralizing solution. After the cycling, the fluoride, calcium and microhardness in enamel were determined. The changes of fluoride content (Δ F) and microhardness (Δ H) after treatment were analyzed between groups using a one way ANOVA and Tukey test. Results The Δ F obtained from the test mouthrinse (71.10 ± 45.50 ppm) was not statistically different (p > 0.05) from that of 100 ppm NaF (41.41 ± 26.75 ppm). However, both solutions showed significantly more fluoride uptake than 5% ethanol group (0.20 ± 2.30 ppm) (p < 0.05). The Δ H of LTC treated enamel (6.7 ± 2.8 Vickers) was not different (p > 0.05) from that of 100 ppm NaF treated samples (10.9 ± 6.1 Vickers). However, Δ Hs of both treatments were significantly more than in ethanol treated teeth (1.1 ± 1.7 Vickers) (p < 0.05). Conclusion Fluoride/zinc/essential oil-containing mouthrinse can promote enamel fluoride uptake and microhardness.

DOI

10.58837/CHULA.CUDJ.36.1.4

First Page

31

Last Page

36

Download

Included in

Dentistry Commons

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.