This experiment was done to assess the effects of two toothbrushing instruction
methods on dental plaque and gingival bleeding. 70 Subjects were male and female
adults aged 20-39 years, and divided into two groups. With dentiform, subjects of one
group were given repeated toothpick and rolling toothbrushing instruction individually,
and then they are directed to brush their teeth according to the method they learned
just before. With professional toothbrushing instead of dentiform, subjects of the other
group were also given the same instruction. both groups were instructed two times at
the interval of 8 weeks. Presence of disclosed dental plaque and gingival bleeding on
probing were recorded before every instruction at the start and 8 weeks, and only
recorded without instruction at 16 weeks.
The results were as follows :
1. Dental plaque on the buccal proximal surfaces of the group instructed with
professional toothbrushing was decreased in the molars and incisors of both jaws, but
that of the group instructed with dentiform only in the maxillary molars.
2. Dental plque on the lingual surfaces of the group instructed with professional
toothbrushing was decreased in the maxillary molars and mandibular incisors, but that
of the group instructed with dentiform in no parts.
3. Dental plaque on the buccal surfaces of both groups was decreased in no parts.
4. Gingival bleeding of the buccal papillary sites of the group instructed with
professional toothbrushing was decreased in the maxillary molar and mandibular molar
and incisor areas, but that of the group instructed with dentiform only in the maxillary
incisor area.
5. Gingival bleeding of the buccal papillary sites of the group instructed with
professional toothbrushing was decreased in the maxillary premolar and mandibular
areas, but that of the group instructed with dentiform only in the maxillary incisor and
mandibular premolar and incisor areas.
6. Gingival bleeding of the buccal sites of the group instructed with professional
toothbrushing was decreased in the maxillary premolar and mandibular molar and incisor
areas, but that of the group instructed with dentiform only in the maxillary molar and
mandibular incisor areas.
7. Toothpick and rolling toothbrushing can be instructed with professional
toothbrushing, rather than with dentiform.
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