Background: There is currently insufficient evidence on potential predictors of a child's behaviour with nitrous oxide (N2O) sedation.
Aim: To examine the association between a child's temperament and behavioural outcomes during dental treatment with N2O sedation, and the child's perception to N2O sedation.
Design: At the first visit (dental treatment visit), temperament was assessed using the Child Behaviour Questionnaire-Short Form and behaviour was assessed by an independent rater using the Venham Behaviour Rating Scale. At the second visit, the child's experience with N2O sedation was elicited.
Results: Seventy-two healthy children aged between 36 and 95 months were recruited. Planned dental treatment was completed in 84.7% of the subjects. Venham behaviour success <3 and Venham behaviour success <1 were achieved in 73.6% and 33.3%, respectively. The temperament domain of effortful control was associated with Venham behaviour score (ρ = -0.266, p = .024) and Venham behaviour success <1 (OR = 3.506, 95% CI = 1.328-9.259, p = .011). Baseline Frankl behaviour score was significantly associated with all behavioural outcomes. Venham behaviour success <3 was significantly associated with a child reporting to have enjoyed the dental treatment visit (p = .026).
Conclusion: Effortful control and baseline behaviour were associated with behavioural outcomes of N2O sedation and can be used to predict a child's behaviour.
Keywords: behaviour; conscious sedation; nitrous oxide; paediatric dentistry; patient‐reported outcome measures; temperament.
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