Patients eligible for the study complied with all the following:
carious white spot lesions [
SYSTEMIC DISEASE, PLAQUE

The patients’ age range between the age from 18 to 25 years old [Gender: males or females [Good oral hygiene with a plaque index score 0 or 1, good general health, and patient compliance [Active non-cavitated carious white spot lesions [Had completed fixed orthodontic treatment within the past 2 weeks [No systemic diseases or concomitant medication affects salivary flow in order not to negatively affect the remineralizing process [