• Pornpun Asvanit D.D.S., M.S., M.Ed., Diplomate, Thai Board of Pediatric Dentistry, Diplomate, American Board of Pediatric Dentistry
• Umaporn Kongsakul D.D.S., M.S.
• Pochana Pongpanich D.D.S., M.P.H.
• Sumit Suamphan D.D.S.
• Rujira Puanaiyaka D.D.S., Diplomate, Thai Board of Pediatric Dentistry

Objective The purpose of this study was to evaluate the efficiency and effectiveness of the self
learning dental health educational multimedia prepared for preschool day-care personnel.

Materials and methods The designed educational media had 3 videos and one pamphlet. The content
included the characteristic of early childhood caries, the appearance of clean teeth, cariogenic diets,
tooth brushing and flossing methods. There were 275 volunteered personnel: 77 day-care personnel
(age 35.8 ± 9.5) from Bangkok, 113 day-care personnel (age 35.0 ± 8.7) from Chumporn, and 85
day-care personnel (age 28.2 ± 5.0) from Chiangrai. The fifteen developed pre and post-test parallel
questionnaires were used to test the knowledge of the participants after single viewing of the prepared
media. The data was analyzed using SPSS version 11.5. Paired-sample T test was used for comparison
between the pre-and post-test of different volunteered groups. The p < 0.05 was considered statistical
significance.

Results The efficiency of the media was 81/73 and the effectiveness index was 0.524 consecutively.
The average pre-test score was 8.6 ± 2.1 (57.5%) as compared to the post-test score of 12.0 ± 2.0
(79.7%). The average pre-test score of samples from Bangkok, Chumporn and Chiangrai were 8.3 ± 1.7
(55.1%), 9.6 ± 1.9 (64.1%) and 7.6 ± 2.0 (50.9%) and the average post-test score of samples in each
group were 11.9 ± 2.1 (79.4%), 12.4 ± 1.7 (82.9%) and 11.4 ± 2.1 (75.9%), respectively. The dental
health knowledge of the day-care personnel is significantly improved by using the self learning dental
health educational multimedia (p < 0.01).

Conclusion After a single viewing of the prepared self-learning media, the day-care personnel
improved their dental health knowledge.

(CU Dent J. 2010;33:173-84)