Effect of low fluoride acidic dentifrices on dental remineralization

Brazilian Dental Journal

Fernanda Lourenção Brighenti¹  Eliana Mitsue Takeshita¹  Camila De Oliveira Sant'ana¹  Marília Afonso Rabelo Buzalaf¹  Alberto Carlos Botazzo Delbem¹ 

关键词: dentifrices;    dental enamel;    fluoride;    dental caries;    tooth remineralization;   

DOI  :  10.1590/0103-6440201301995

来源: SciELO

【 摘 要 】

This study evaluated the capacity of fluoride acidic dentifrices (pH 4.5) to promote enamel remineralization using a pH cycling model, comparing them with a standard dentifrice (1,100 µgF/g). Enamel blocks had their surface polished and surface hardness determined (SH). Next, they were submitted to subsurface enamel demineralization and to post-demineralization surface hardness analysis. The blocks were divided into 6 experimental groups (n=10): placebo (without F, pH 4.5, negative control), 275, 412, 550, 1,100 µgF/g and a standard dentifrice (positive control). The blocks were submitted to pH cycling for 6 days and treatment with dentifrice slurries twice a day. After pH cycling, surface and cross-sectional hardness were assessed to obtain the percentage of surface hardness recovery (%SHR) and the integrated loss of subsurface hardness (ΔKHN). The results showed that %SHR was similar among acidic dentifrices with 412, 550, 1,100 µgF/g and to the positive control (Tukey's test; p>0.05). For ΔKHN, the acidic dentifrice with 550 µg F/g showed a better performance when compared with the positive control. It can be concluded that acidic dentifrice 550 µgF/g had similar remineralization capacity to that of positive control.

【 授权许可】

CC BY   
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