Oral hygiene indirect instruction and periodic reinforcements: effects on index plaque in schoolchildren

Rodrigues, Jonas Almeida; dos Santos, Patrícia Aleixo; Baseggio, Wagner; Corona, Silmara Aparecida Milori; Palma-Dibb, Regina Guenka; Garcia, Patrícia Petromilli Nordi Sasso (2009). Oral hygiene indirect instruction and periodic reinforcements: effects on index plaque in schoolchildren. Journal of clinical pediatric dentistry, 34(1), pp. 31-4. Birmingham, Ala.: Journal of Pedodontics Inc.

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The aim of this study was to evaluate the effectiveness of the indirect instruction and the influence of the periodic reinforcement on the plaque index in schoolchildren. Forty schoolchildren aged from 7 to 9 years old were selected from a public school. After determining the initial O'Leary Plaque Index all schoolchildren were submitted to a program for oral hygiene through indirect instruction -"The Smiling Robot". The schoolchildren were divided into 2 groups: with and without motivation reinforcement. The index plaque exam was performed in both groups after 30, 60 and 90 days of the educational program. Comparing the groups, the plaque index decreasing could be observed in the group with reinforcement with statistically significant difference. For the group with reinforcement, statistically significant difference among the evaluations was found. For the group without reinforcement, significant decrease in the plaque index was found after 30 days when compared to the first, third and fourth evaluations. The indirect instruction with "The Smiling Robot "promoted a positive initial impact on the decrease of plaque index in the schoolchildren. The periodic reinforcements showed more suitable results and significant reduction of the plaque index in the course of the evaluations.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

De Almeida Rodrigues, Jonas




Journal of Pedodontics Inc.




Eveline Carmen Schuler

Date Deposited:

04 Oct 2013 15:11

Last Modified:

25 Jan 2017 12:16

PubMed ID:


Web of Science ID:



https://boris.unibe.ch/id/eprint/31122 (FactScience: 195527)

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