Abstract
Fluoridated dentifrices are considered as an effective method for preventing dental caries. Nano-hydroxyapatite crystals which have remineralizing potential can be combined with herbs with antimicrobial activity and used as a dentifrice without any risks like cytotoxicity and adverse effects. Nano-hydroxyapatite crystals are formulated by wet chemical precipitation method and tested using X-ray diffractometer. An herbal dentifrice is formulated from extract of Salvadora persica to which Nano-hydroxyapatite crystals are added. A 3x3mm wide window has been created in 14 extracted first premolars which are then processed through a pH cycling for 7 days. The depth of the lesion is assessed using a confocal microscope. The difference in mean depth of the lesion between test dentifrice (Herbal dentifrice with Hydroxyapatite) (240.33.± 23.47) and fluoride dentifrice (272.75±29.38) was found to be statistically significant. Herbal dentifrice with Hydroxyapatite group mean depth of the lesion was 763.13+66.18 before and 240.33+23.48 after the remineralization cycle. In the Fluoride dentifrice group the mean depth of the lesion is 763.14±66.18 before and 272.55+29.38 after the pH cycle. Herbal dentifrice incorporated with hydroxyapatite had higher remineralizing potential compared to a fluoride dentifrice.
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