End-expired nitrous oxide concentrations compared to flowmeter settings during operative dental treatment in children.


PURPOSE The purpose of this study was to analyze inspired and end-expired alveolar nitrous oxide (N(2)O) concentrations during operative dental treatment in 6- to 9- year-old children and compare them to the concentrations dispensed by the dental N(2)O delivery system's flowmeter. METHODS Twenty-three healthy 6- to 9-year-olds who received restorative… (More)


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