the patients will be randomly assigned to one of three study groups the first group is nanosilver fluoride,the second is casein phosphopeptides_amorphous calcium phosphate and the third is sodium fluoride as positive control..the three material will be applied in single application with no repetition ..follow up after one and three month ..the patient should have at least one carious lesion(ICDASII code 5)
The study is randomized controlled trial ...The null hypothesis suggests that there is no significant difference between nanosilver fluoride and sodium fluoride with Casein phosphopeptides_amorphous calcium phosphate in the remineralization of dental caries.