Clinical evaluation of a novel radiofrequency-based toothbrush for teeth whitening and reduction of teeth stains: A pilot study.

Abstract

ObjectivesTo evaluate the effect of a novel radiofrequency (RF)‐utilizing toothbrush on reduction of stains and improvement of teeth shade.Materials and MethodsThis was an open label, prospective study, including six clinical visits that were conducted over a period of 8 weeks. Subjects performed twice daily brushing using a novel RF‐utilizing toothbrush, used manually with no mechanical vibration. Teeth shade and stains were assessed using Vita Easyshade advanced 4.0 device and a visual assessment of standardized digital photographs, before, and following 4 and 8 weeks of treatment.ResultsTwelve subjects completed the study with fully evaluable data. A notable shade improvement (whitening) was observed between the visits according to the average scores of teeth whitening index per subject. Statistical analysis conducted by the unstructured mix model confirmed a significant reduction in the average score of whitening index between baseline and visit 5 (p < 0.001) as well as between baseline and visit 6 (p < 0.001). No significant difference was found between the average teeth shade in visit 5 as compared to visit 6 (p = 0.918). No significant difference was found in teeth shade between females and males; however, subjects age was significantly correlated with teeth shade (p < 0.001). Digital photographs indicated a notable reduction in visible dark stains. The toothbrush was well tolerated and no device‐related adverse events were reported during the study.ConclusionsThe novel RF‐utilizing toothbrush produced significant benefits relating to teeth whitening and stains reduction, following one and 8 weeks of brushing.