Related Experiment Video
Updated: Aug 7, 2026

Oral Biofilm Analysis of Palatal Expanders by Fluorescence In-Situ Hybridization and Confocal Laser Scanning Microscopy
Published on: October 20, 2011
Knowledge, attitudes and status of oral health in children at risk for infective endocarditis
D B da Silva1, I P R Souza, M C S A Cunha
1Paediatric Dentistry Department, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. dany.bezerra@uol.com.br
Insights
Children at risk for infective endocarditis (IE) and their guardians show poor oral health and limited understanding of IE risks. Improving oral hygiene and IE knowledge is crucial for this vulnerable pediatric population.
Area of Science:
- Pediatric Cardiology
- Oral Health
- Infective Endocarditis
Background:
- Children at risk for infective endocarditis (IE) require careful management.
- Oral health is a critical factor in preventing IE.
- Guardians' understanding of IE risks and oral health is essential for patient care.
Purpose of the Study:
- To evaluate the oral health status of children at risk for IE.
- To assess guardians' knowledge and attitudes regarding IE and oral health.
- To identify areas for intervention in a pediatric cardiology setting.
Main Methods:
- Oral examinations were conducted on 104 children (ages 2-17).
- Guardians completed structured interviews about IE risks and oral health.
- Plaque Index (PI), Gingival Index (GI), and dmft/DMFT indices were used.
Main Results:
- 98% of children had visible plaque and 99% had gingival bleeding.
- Caries experience (dmft/DMFT) was 2.62/3.97.
- Only 41.3% of guardians understood the importance of oral health for preventing IE, and 28.8% of children had never visited a dentist.
Conclusions:
- Guardians demonstrate inadequate knowledge and attitudes towards oral health and IE prevention.
- Children at risk for IE exhibit poor oral health, increasing bacteremia risk.
- Interventions are needed to improve oral hygiene practices and IE awareness in this population.
Aim:
The purpose of this study was to assess the oral health status of 104 children (2-17 years of age) at risk for infective endocarditis attending the Paediatric Cardiology Service of the Martagão Gesteira Institute of Child Care and Paediatrics, Rio de Janeiro, Brazil, and their guardians' attitudes towards and knowledge about endocarditis risks.
Methods:
A structured interview was carried out with guardians and an oral examination was performed on each child to determine scores for the plaque index (PI), gingival index (GI) and dmft/DMFT index.
Results:
The percentage of guardians who understood the meaning of 'heart infection' was 9.6%, who knew the possibility of heart disease caused by dental procedures was 60.6%, who understood the requirement for antibiotic cover before dental treatment was 72.1%, and who understood the importance of good oral health to prevent infective endocarditis was 41.3%. As regards oral health behaviours, 46.1% of children brushed their teeth three times or more a day, 28.8% had never visited a dentist before, and only 24.3% attended the dentist for prevention. There was visible plaque in 98% and gingival bleeding in 99% of children in this study. The caries experience for primary dentition (dmft) was 2.62%, and 3.97 for permanent dentition (DMFT).
Conclusions:
Based on these results, we can conclude that the guardians' knowledge and attitudes about oral health were not good. This group at risk has poor oral health, which may give rise to a frequent bacteraemia under physiological conditions.
Related Concept Videos
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
Endocarditis I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis III: Medical Management
Endocarditis IV: Nursing Management
Development of the Oral Microbiota

