Impact of a Newly Formulated Toothpaste in Tooth Staining Associated With Chlorhexidine Rinses

Dental staining may interfere with compliance with chlorhexidine mouth rinse use Thus, developing strategies to control tooth staining associated with chlorhexidine use may be relevant for improving compliance. Thus, a new anti-staining toothpaste formulation (Dentaid, Barcelona, Spain) has been recently developed, aiming to interfere with the development of extrinsic staining associated with chlorhexidine use (preventive action), but also with the capacity of removing staining already formed. For that, the proposed formulation includes hexametaphosphate, tripolyphosphate and polyvinylpyrrolidone (PVP), within its ingredients. Thus, it may be relevant to test the efficacy of this new anti-staining toothpaste formulation in two consecutive randomized clinical trials (RCTs). Objectives The primary objective of these RCTs will be to evaluate the capacity of preventing tooth staining, associated with the use of a chlorhexidine mouth rinse, adjunctive to subgingival instrumentation (step 2 of periodontal therapy) (RCT #1). As secondary objective, the capacity of eliminating or reducing tooth staining already present will be assessed (RCT #2).