Discussion
Tooth
PLAQUE, PLAQUE
Tooth brushing efficacy is largely dependent on patients’ motivation, manual dexterity, and knowledge of how to brush. It was recently shown that the efficacy of toothbrushing is not a matter of brushing time but of establishing brushing systematics leading to evenness of distribution of brushing time [In a recent study investigating an auto-cleaning device with silicon nubs (In the present study, we decided to assess the Rustogi Modified Navy Plaque Index [In the authors’ opinion, the development of auto-cleaning devices seems a gratifying approach to increase both the frequency and the efficacy of toothbrushing which have been ascertained to be insufficient in the majority of adults, adolescents, and children [Additional plaster cast analyses revealed that for all but one individual, the mouthpiece was too short consequently not completely covering second molars with a range of 0.5 to 11 mm. The manufacturer recommends moving the mouthpiece gently from one side to the other during the brushing process probably to overcome a non-accurate fit. This movement might compensate some millimeters. In the present study, the distance of the occlusal surface not covered by the mouthpiece in rest was statistically significantly correlated with plaque retention on appropriate teeth (The limitation of the present study is that the elongated brushing mode of the 