Effectiveness of two fluoride dentifrices to arrest root carious lesions

Purpose: To compare the effectiveness of Prevident 5000 Plus (5,000 ppm F) and Colgate Winterfresh Gel (1100 ppm F) to arrest root carious lesions, Ma terials and Methods: 201 subjects with at least one root carious lesion wer e recruited from dental school patients. They were randomly assigned to use either Prevident 5000 Plus (5000 ppm F) or Colgate Winterfresh Gel (1100 p pm F) as sodium fluoride in the same silica base. Measurements of lesion ha rdness, area, distance from the gingival margin, cavitation and plaque were recorded at baseline and after 3 months by a single examiner. Results: Aft er 3 months 38% of subjects using Prevident 5000 Plus and 10% using Winterf resh Gel had one or more lesions that had become hard (P< 0.001). Non-cavit ated lesions at baseline were more likely to become hard than cavitated les ions. Compared to the Winterfresh group there was significant increase in t he distance from the base of the lesion to the gingival margin and plaque s cores were reduced in those using Prevident 5000 Plus.