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

"Subgingival instrumentation will be performed in two sessions, with a maximum interval of one week, with hand and automatic devices, under local anaesthesia. Full-mouth dental polishing (air-polishing) will be performed immediately after the second session, to eliminate any dental staining.~Experimental anti-staining toothpaste formulation (Dentaid, Barcelona, Spain) includes hexametaphosphate, tripolyphosphate and polyvinylpyrrolidone (PVP), within its ingredients. Participants will use the test or control toothpaste three times daily with a manual toothbrush followed by the use, twice daily, of a 0.12% chlorhexidine, commercially available, mouth rinse."

"Subgingival instrumentation will be performed in two sessions, with a maximum interval of one week, with hand and automatic devices, under local anaesthesia. Full-mouth dental polishing (air-polishing) will be performed immediately after the second session, to eliminate any dental staining.~Experimental anti-staining toothpaste formulation without tripolyphosphate and polyvinylpyrrolidone (PVP), within its ingredients. Participants will use the test or control toothpaste three times daily with a manual toothbrush followed by the use, twice daily, of a 0.12% chlorhexidine, commercially available, mouth rinse."