J Korean Acad Oral Health.  2017 Sep;41(3):208-213. 10.11149/jkaoh.2017.41.3.208.

Effects of dentifrice containing 1,500 ppm F (NaF) on dental erosion

  • 1Department of Preventive & Public Health Dentistry, Chonnam National University School of Dentistry, Gwangju, Korea.
  • 2Dental Science Research Institute, Chonnam National University School of Dentistry, Gwangju, Korea.
  • 3Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea. yspd8050@naver.com


The purpose of this study was to evaluate the effect of a dentifrice containing 1,500 ppm F (NaF) and 2% bamboo salt on dental erosion caused by ingestion of acidic beverages.
Specimens of extracted bovine teeth enamel were embedded in a resin and polished. Experimental specimens were subjected to one of the six treatments (n=10 per treatment group): the experimental group consisted of 1,500 ppm F (NaF)+2% bamboo salt; 1,500 ppm F (NaF); 1,000 ppm F (NaF)+2% bamboo salt; 1,000 ppm F (NaF); free fluoride+2% bamboo salt; and free fluoride. The specimens were exposed to the experimental dentifrice, an acidic beverage, and artificial saliva. The treated specimens were analyzed using a Vickers surface hardness test and scanning electron microscopy (SEM). Surface hardness and SEM were compared before and after the chemical pH cycling sequences for 12 days.
Group 1 (1,500 ppm F+2% bamboo salt) showed the highest surface hardness, followed by group 2 (1,500 ppm F), group 3 (1,000 ppm F+2% bamboo salt), group 4 (1,000 ppm F), group 5 (free fluoride+2% bamboo salt), and group 6 (free fluoride), in that order. Upon observing the surface by SEM, when bamboo salt was used and when the NaF concentration was higher, the enamel was denser and the surface was more highly remineralized.
The use of a higher concentration of NaF and bamboo salt resulted in a higher preventive effect on tooth erosive potential. The addition of bamboo salt to dentifrice containing a high concentration of NaF can contribute to preventing dental erosion.


Bamboo salt; Dental erosion; NaF; Remineralization
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