Toothbrushing effectiveness of a group of six-year-old uninstructed schoolchildren.

The main purpose of this study was to evaluate the effectiveness of toothbrushing in 124 six year-old uninstructed schoolchildren. The toothbrushing conditions were made to closely simulate the toothbrushing procedure carried out at home. The amount of plaque before and after toothbrushing was assessed using the Modified Personal Hygiene Performance Index. An overall reduction of 54.0 per cent in plaque score was observed following toothbrushing. This reduction was much more favourable than other reported studies using subjects of similar age group. However most of the plaque that remained following brushing were accumulated in the gingival areas. The highest prebrushing score and the least effective toothbrushing ability was observed among the Malay schoolchildren. The pre and postbrushing scores among the Chinese and Indians were comparable. There was no statistically significant difference in toothbrushing ability between boys and girls at this age. The children brushed their anterior teeth better than their posterior and the facial surfaces better than the lingual. The greatest percentage reduction in plaque score was observed in the occlusal/incisal areas with the gingival areas being the least accessible. The conclusions of this study points to the lack of manual dexterity of children of this age group to effectively brush their teeth and the need for proper parental supervision in assisting them to carry out the toothbrushing procedure.