COMPARATIVE EVALUATION OF THE EFFECTIVENESS OF THE USE OF TOOTHBRUSHES OF VARIOUS TYPES IN CHILDREN DURING THE PERIOD OF REPLACEMENT BITE

Abstract

The aim of the work is to conduct a clinical assessment of the effectiveness of toothbrushes of various types in children aged 6-11 years by dynamic monitoring of the condition of hard tissues of teeth, periodontal and hygienic status.
 Materials and methods: a parallel, randomized, open clinical trial was conducted aimed at evaluating the effectiveness of three different toothbrushes (two manual ones with different working parts and an electric one with the technology of reciprocating and pulsating movements) in children aged 6-11 years. The study involved 60 children aged 6-8 years and 60 children aged 9-11 years. In each age category, 3 groups of 20 people were randomly formed, who received toothbrushes of different types: groups I and IV - manual brush "Oral-B Junior" ("Procter & Gamble", Ireland), groups II and V - manual brush "ROCS Junior" (LLC "VDS-Stupino", Russia), groups III and VI - electric brush "Oral-B Pro 400 Junior Sensi Ultrathin". Dental examination included determination of KPUz+kpz indices, PI (Turesky S., 1970) and PMA (Parma S., 1960). After the examination, the children were taught the standard method of brushing their teeth. Repeated examinations were carried out after 1, 2 and 3 months. To compare the indicators of one group in dynamics, the Wilcoxon criterion was used, and the Mann-Whitney test was used to identify differences between groups.
 Results. The values of the KPUz+KPZ indices did not change in any of the groups during the study. In all groups, there was a significant decrease in PI after 1, 2 and 3 months from the start of the study (Wilcoxon criterion, p<0.05). The greatest reduction in the plaque index was observed when using an electric brush (significant differences with the groups where manual brushes were used, Mann-Whitney criterion, p<0.05). Of manual toothbrushes, the Oral-B Junior brush (soft, bowl-shaped brush field, CrissCross bristles, power protrusion) turned out to be more effective. Along with a decrease in the plaque index in all groups, there was a significant decrease in the PMA index (Wilcoxon criterion, p<0.001 compared to the baseline level). The achieved effect was maintained in terms of 2 and 3 months. from the beginning of the study, there was no significant difference between the groups (p>0.05).
 Conclusion: all toothbrushes were effective in controlling the supra-gingival plaque (visible biofilm), the highest effect was observed in groups of children who used an electric toothbrush.