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European Archives of Paediatric Dentistry

, Volume 8, Issue 4, pp 201–205 | Cite as

Comparison between a simplified and a conventional biofilm index in relation to caries activity and gingivitis in the primary dentition

  • A. P. P. dos SantosEmail author
  • V. M. Soviero
Article

Abstract

Aim: This was to compare a simplified biofilm index with a conventional one in relation to caries activity and gingivitis in the primary dentition. Study design: Observational, cross-sectional. Methods: The sample consisted of 90 children aged 10 to 57 months-old. A single examiner performed all examinations. Two visible biofilm indices, one simplified (BF1) and the other conventional (BF2), were used. Gingival bleeding was assessed after flossing all proximal surfaces and each tooth surface was classified for caries, including non-cavitated lesions. Results: According to BF1, half of the sample (45–50%) had thick biofilm. BF2 showed a mean value of 21.8% (SD±16.5); 12 (13.3%) children had gingival bleeding and the mean percentage of bleeding surfaces was 0.9% (SD±2.5). Caries was present in 36 (40.0%) children and the mean value of active lesions was 2.1 (SD±4.3). The ssociation between visible biofilm and gingival bleeding was significant (p = 0.01), except when BF1 was associated with the gingival index (p = 0.08). The association between BF1 and BF2 with caries activity was highly significant (p≤0.001). Conclusion: Both biofilm indices may be used when the outcome being measured is caries. In the primary dentition, though, the conventional index (BF2) is better suited for studies about gingivitis.

Keywords

visible biofilm early childhood caries gingivitis dentition primary 

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Copyright information

© European Archives of Paediatric Dentistry 2007

Authors and Affiliations

  1. 1.Dept. Community and Preventive Dentistry, School of DentistryRio de Janeiro State UniversityRio de JaneiroBrazil

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