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[Oral health in asthmatic children: a dose-response study].

In literature there is a lack of consensus regarding the relationship between dental caries risk and asthma in a child population. Despite these divergent views, all studies conclude that asthmatic children are at risk and that special preventive programs are needed. The asthmatic through either its disease status or its pharmacotherapy carries several factors for an increased caries risk. PH values of most inhalant powders are less than 5.5. A decrease of the salivary and plaque pH has been detected in asthmatic children after use of these inhalers. This low pH value associated with a reduced salivary flow rate (caused by beta-adrenergic agonists and by anti-histaminic medication) makes asthmatics more susceptible to caries and erosion. There are only a few studies that take into account that asthma is a disease with a large diversity of severity and duration. This approach could help to clarify some variability in caries risk. The aim of the present study (a dose-response study) was to examine the oral health status of asthmatic children and to compare the oral health condition and oral health habits within different groups of asthmatic children.