Inclusion criteria  Adults ≥65 years Dentinal root caries lesions with no painful symptomology Can follow instructions for oral hygiene Not dependent for care for their ADLs.  Exclusion criteria:  Symptomatic carious teeth Non-carious attrition, erosion or abrasion cavities Periodontally compromised teeth with Grade 3 mobility, and active signs of infections. Not willing or able to sign informed consent  Post-hoc exclusion:  Participant withdraws consent Medical reasons.