Abstract
Objective:While gingivitis and caries continue to be prevalent issues, there is growing concern about dental erosion induced by dietary acids. An oral hygiene product that protects against all these conditions would be beneficial. This study investigated the potential of two anti-erosion dentifrices to inhibit plaque.Methods:This was a randomized, three-period, two-treatment, double-blind, crossover study evaluating a stannous chloride/sodium fluoride dentifrice (SnCl2/NaF, blend-a-med® Pro Expert) and a popular anti-erosion dentifrice (NaF, Sensodyne® ProNamel™). During Period 3, subjects were randomized to repeat one treatment to evaluate any product carryover effects. Each treatment period was 17 days. Test dentifrices were used with a standard manual toothbrush. Digital plaque image analysis (DPIA) was employed at the end of each period to evaluate plaque levels (i) overnight (am prebrush); (ii) post-brushing with the test product (am post-brush); and (iii) mid-afternoon (pm). Analysis was conducted via an objective computer algorithm, which calculated total area of visible plaque.Results:Twenty-seven subjects completed the study. At all time points, subjects had statistically significantly (P ≤ 0.0001) lower plaque levels after using the SnCl2/NaF dentifrice than the NaF dentifrice. The antiplaque benefit for the SnCl2/NaF dentifrice versus the NaF dentifrice was: am prebrush = 26.0%; am post-brushing = 27.9%; pm = 25.7%.Conclusions:The SnCl2/NaF dentifrice provided significantly greater daytime and overnight plaque inhibition than the NaF toothpaste. When recommending dentifrice to patients susceptible to dental erosion, clinicians can consider one that also inhibits plaque.
Highlights
Dental erosion is defined as the loss of tooth substance by acid exposure not involving bacteria [1]
This study found that two distinctly different sodium fluoride dentifrice products developed to protect against dietary erosion differed in their ability to prevent plaque formation
The plaque inhibition benefit of the SnCl2 ⁄ NaF toothpaste is attributed to the bioavailability of stannous ions in the presence of fluoride ions [24]
Summary
Dental erosion is defined as the loss of tooth substance by acid exposure not involving bacteria [1]. The oral health problem of dietary induced dental erosion is not a new one. There have been reports in the literature for decades documenting the problems associated with erosion of the hard tissues due to dietary acids [2, 3]. More recently, epidemiological studies and case reports have indicated that dental erosion is a growing problem, in the last 10–20 years [4, 5]. With caries amongst children in developed countries at historically low levels [6], erosion is becoming a focus of dental research because it has the potential to cause significant dental health problems as the current child population ages [4]
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