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. 2024 Nov;22(4):863-869.
doi: 10.1111/idh.12802. Epub 2024 Apr 9.

Effectiveness of different toothbrushing patterns among schoolchildren in an urban area of Argentina

Glenda N Rossi  1 , Pablo A Salgado  1 , Aldo F Squassi  1
Affiliations

Effectiveness of different toothbrushing patterns among schoolchildren in an urban area of Argentina

Glenda N Rossi et al. Int J Dent Hyg. 2024 Nov.

Abstract

Aim: To identify toothbrushing patterns among schoolchildren with no prior dental hygiene training and associate them with effectiveness for eliminating dental biofilm.

Materials and methods: Eight calibrated dentists assessed dental biofilm, toothbrushing procedure and dental status and registered: grip, bristle angle with respect to tooth, type of movement, surfaces brushed, simultaneous brushing of both jaws, including all six sextants and duration of brushing dental biofilm before and after brushing was determined in 944 children. Frequency distribution was calculated for nominal variables and central tendency and dispersion for quantitative variables of the toothbrushing procedure. Effectiveness was evaluated in 236 children by calculating differences between biofilm levels before and after brushing using Student's test. A cutoff value was established for the difference in reductions in biofilm levels by means of an ROC curve.

Results: The variables including all 6 sextants and bristle angle showed positive association with biofilm reduction. The cutoff point for biofilm reduction for including all 6 sextants was 66.85% (OR 6.4 [3.6-11.38]). The cutoff value for biofilm reduction for bristle angle was 68.35% (OR 3.2 [1.83-5.8]).

Conclusion: The variables associated with biofilm reduction can be used to optimize the modality of future educational interventions in schoolchildren.

Keywords: Argentina; dental biofilm; dental hygiene; schoolchildren; toothbrushing.

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