A Comprehensive Oral Health Intervention Program for Preschool and Primary School Children in Suzhou

The comprehensive intervention includes:

Oral health education delivered through lectures, classroom activities, videos, and educational materials.

Instruction and practice in appropriate toothbrushing and mouth-rinsing techniques.

Supervision and reinforcement of oral hygiene behaviors by teachers and parents.

Oral health educational materials, including posters, brochures, tooth models, and audiovisual materials.

Interactive and gamified oral health activities. Behavioral reinforcement activities, such as oral hygiene practice and oral health check-in activities.

Family-based oral health education and behavioral support. School-based oral health promotion activities.

Dental caries: DMFT/dmft index D/d: crown with obvious caries, or softening of the bottom wall of the cavity, or filled due to caries (including secondary caries).

M/m: loss due to caries (permanent teeth) or early loss due to caries (primary teeth).

F/f: filling due to caries without secondary caries.

The color, texture, and bleeding tendency of the gums were observed by probing, and the gingival condition of each tooth was rated as 0-3 points (subjective judgment of the doctor).

Methods: A blunt tip periodontal probe was used, combined with visual examination and probing. The kindergartners selected 4 representative teeth: 51, 61, 75, 85, and the primary students selected 6 representative teeth: 16, 21, 24, 36, 41, 44 (if the representative teeth were not erupted, they were replaced by the adjacent erupted teeth). Each tooth was examined at 4 sites and the average score was recorded.

Scoring criteria:

Score 0: healthy gums with no inflammation and no bleeding on probing. Score 1: mild inflammation (slight change in color and texture) without bleeding on probing.

Score 2: moderate inflammation (redness, edema, light), bleeding on probing. Score 3: severe inflammation (marked redness, hypertrophy, or ulceration) with a tendency to spontaneous bleeding.

he dentist applied plaque stain (2% basic fuchsin solution or children's specific erythraea red tablet) to the entire tooth surface, waited 30 seconds, rinsed the mouth with water for 30 seconds, then observed the stained plaque attachment area, and scored according to the tooth surface area (kindergartners examined 4 index teeth: 51, 61, 75, 85, primary school students examined 6 teeth: 16, 21, 24, 36, 41, 44) (if the representative tooth has not yet erupted, it will be replaced by the adjacent erupted tooth), 0-3 points (subjective judgment of doctors) Methods: Smear the whole tooth surface with plaque display agent, gargle with water, and observe the stained area. Each tooth was examined on four tooth surfaces, and the average score was recorded.

Scoring criteria:

Score 0: no plaque in the gingival margin area. Score 1: The tip of the probe gently scratched the tooth surface, and a small amount of plaque was observed (not visible to the naked eye).

Score 2: moderate amount of

The scale coverage area of the teeth was evaluated by visual inspection, and the cleaning effect of daily brushing was quickly determined. Six designated tooth surfaces were examined: 16 buccal, 11 labial, 26 buccal, 31 labial, 36 lingual, and 46 lingual. Kindergarten-aged children were simplified to 4 primary teeth (51, 61, 75, 85).

0 point: no soft scale and no exogenous pigmentation on the tooth surface

1. point: the scale covered less than 1/3 of the tooth surface; Or no soft dirt but the presence of pigment stains
2. points: the soft scale covered 1/3 to 2/3 of the tooth surface
3. points: soft scale covering > 2/3 of the tooth surface (a large amount of food debris accumulation) Total score ÷6 = individual mean soft scale index DI-S