Acquired pellicle engineering using a combination of organic (sugarcane cystatin) and inorganic (sodium fluoride) components against dental erosion.

Taioqui Pelá, Vinícius; Niemeyer, Samira Helena; Baumann, Tommy; Levy, Flávia Mauad; Henrique-Silva, Flávio; Lussi, Adrian; Saads Carvalho, Thiago; Buzalaf, Marília Afonso Rabelo (2022). Acquired pellicle engineering using a combination of organic (sugarcane cystatin) and inorganic (sodium fluoride) components against dental erosion. Caries research, 56(2), pp. 138-145. Karger 10.1159/000522490

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This study evaluated the combination of a sugarcane cystatin (CaneCPI-5) and sodium fluoride (NaF) in acquired pellicle engineering for the prevention of dental erosion in vitro. 75 human enamel specimens were prepared and divided into 5 treatment groups (n = 15/group): Deionized water (Control); Elmex™ (SnCl2/NaF/AmF); 0.1 mg/ml CaneCPI-5; 500 ppm NaF; and CaneCPI-5+NaF (Combination). The specimens were individually treated (200 μl; 2 min; 37 °C), then incubated in human saliva (200 μl; 1 h, at 37 °C) for acquired pellicle formation. Afterwards, the specimens were submitted to an erosive challenge (1% citric acid, pH 3.6, 10 ml, 2 min, 25 °C). This sequence was conducted 5 times. Percentage of surface microhardness change (%SMC), relative surface reflection intensity (rSRI) and calcium released to the citric acid (CR) were measured and analyzed by One-way ANOVA followed by Tukey's test (p<0.05). In general, all the treatments (SnCl2/NaF/AmF, CaneCPI-5, NaF and Combination) significantly protected the enamel when compared the control group. Regarding %SMC and rSRI, the Combination was the most effective treatment, reducing the %SMC significantly (p<0.01) when compared to all the other treatments, although this difference was not significant in the CR analysis. All treatments demonstrated a protective effect on enamel against dental erosion; however the combination of CaneCPI-5 with NaF showed a greater protection.

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