Assessment of Efficacy Of Four Different Types Of Bristle Designs Of Tooth Brush On Plaque And Gingival Status: A Cross Over Randomized Control Trial.
Keywords:
Dental Plaque, Gingivitis, Periodontitis, VolunteersAbstract
Backgrounds: Improper maintenance of oral hygiene can result in accumulation of dental plaque which can lead to gingivitis and periodontitis. Study aimed to compare the effect of four different bristle designs of tooth brush on plaque and gingival status.
Methods: A cross over randomized clinical trial was carried out to evaluate the efficacy of four different types of toothbrush. The toothbrushes used were flat trim, Bi-level, Zig Zag and Wavy. The study was carried out over a period of four months. A total of 160 volunteers were taken as the study subjects. These subjects were randomly allocated into 4 groups. Each group comprised of 40 study subjects. All the subjects were assessed for gingival and plaque status using gingival and plaque index at the end of week 1, week 2 and week 3 from baseline score. A wash out period of seven days was allowed between the study periods and then cross over among the study groups were performed. Student’s paired t-test was applied to see the change in variables with respect to time and one way ANOVA followed by post-hoc test were used for multiple group comparison. Statistical significance was defined at P<0.05.
Results: Statistically significant difference was found in both plaque and gingival score from baseline to 4 months in all the groups. Zigzag toothbrush design was found to be superior in reduction of plaque and gingival score followed by wavy, bi-bevel and flat trim tooth brush design.
Conclusion: Zigzag and wavy tooth brush designs found to be most effective than other tooth brush designs and can be recommended at the community level.
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