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Updated: May 9, 2026

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Oral health status in preschool asthmatic children in Iran
Sara Ehsani1, Mostafa Moin, Ghasem Meighani
1Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran. sara_ds4@yahoo.com.
Insights
This study found that preschool children with asthma showed no increased risk of tooth decay compared to healthy children. Oral health indices, including dental plaque and gingival inflammation, were similar between groups, suggesting asthma does not negatively impact dental health in this age group.
Area of Science:
- Pediatric Respiratory Medicine
- Pediatric Dentistry
- Oral Microbiology
Background:
- Asthma is a common chronic airway inflammatory disorder in preschool children.
- Contradictory reports exist regarding asthma's impact on oral health.
- A hypothesis suggests asthma may lead to poorer oral health outcomes.
Purpose of the Study:
- To investigate oral health indices in preschool children with mild to moderate asthma.
- To compare dental plaque, gingival inflammation, mouth breathing, and dental caries between asthmatic and healthy children.
- To analyze the presence of Streptococcus mutans and Lactobacillus species in saliva.
Main Methods:
- Evaluated oral health in 44 preschool children (3-6 years) with asthma and 46 healthy controls.
- Assessed dental plaque, gingival inflammation, mouth breathing, and decayed, missing, filled teeth (dmft) using WHO criteria.
- Quantified Streptococcus mutans and Lactobacillus species in saliva and analyzed factors influencing counts.
Main Results:
- No significant difference in dmft index between asthmatic (mean 3.34) and control (mean 3.0) groups.
- Mother's education and asthma presence significantly affected Streptococcus mutans counts.
- No factor significantly influenced Lactobacillus counts.
Conclusions:
- Asthma in preschool children did not significantly increase the likelihood of tooth decay.
- Oral health indices, including caries, were comparable between asthmatic and healthy children.
- Further research may explore other oral health aspects potentially affected by asthma.
Abstract:
Asthma is a chronic inflammatory disorder of the airways, which is diagnosed by periodic symptoms of inflammation, bronchial spasm, and increased mucosal secretions. It has higher incidence among the preschool children. There are many contradictory reports based on the effect of asthma on oral health, however it has been hypothesized that asthma could lead to poor oral health. The objective of the present study was to investigate oral health indices in 44 preschool children of three to six years old with mild to moderate asthma and 46 matched healthy children in Tehran Children's Respiratory Center. Dental plaque, gingival inflammation, mouth breathing, and dental caries were evaluated by one trained examiner according to World Health Organization [WHO] criteria. Culture and colony counting of streptococcus mutans and lactobacillus species were carried out in saliva specimens of the patients. The effects of different factors on the colony counts were statistically analyzed using linear regression analysis. The level of mother's education and preexisting asthma disease in children had significant effect on the colony counts of streptococcus species whereas no factor was found to influence the number of lactobacillus counts significantly. The results indicated no significant differences between the children with asthma and those without asthma regarding (decayed, missing, filled, teeth) dmft index (mean of 3.34 in asthmatic children and 3.0 in the control group). Therefore, it can be deduced that the presence of asthma disease did not increase the probability of tooth decay.
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