• H al-Rakaf, L L Bello, A Turkustani, and J O Adenubi.
• Department of Preventive Dental Sciences, College of Dentistry, King Saud University, Saudi Arabia.
• Int J Paediatr Dent. 2001 Jan 1; 11 (1): 33-40.

ObjectivesTo compare the effects of 3 different doses of intra-nasal midazolam in the conscious sedation of young paediatric dental patients and to compare the effectiveness of the sedation in the fasting and non-fasting child.DesignDouble blind random controlled trial.Sample And MethodsThirty-eight uncooperative young children aged 2-5 years (mean age 4.02 years) were randomly assigned to one of 3 groups. The groups and the doses of midazolam administered intra-nasally were A: 0.3 mg/kg, B: 0.4 mg/kg, and C: 0.5 mg/kg body weight. Each child in each group had two visits for restorative treatment: one without food (fasting) and the other with soft drink and light food (non-fasting) before treatment. Child behaviour and sedative effects were evaluated using the scoring system of Houpt. The vital signs were monitored continuously using a pulse oximeter and Dinamap machine.ResultsThere was rapid onset of sedation with the maximal effect between 8 and 15 minutes. This sedation lasted for 25-40 minutes in Groups A and B and for 60 minutes in Group C. Conscious sedation and dental treatment were achieved in 79%, 96% and 100% of the children in Groups A, B and C, respectively. Consistently higher Houpt scores were seen in Groups B and C, with statistically significant differences between Groups A and C, and B and C (Tukey's range test, P < 0.05). There were no significant differences in the general behaviour of the child, the onset and the duration of sedation between the fasting and the non-fasting child (nonparametric ANOVA P > 0.05). All the vital signs were within normal physiological limits and there were no significant adverse effects either with or without fasting.ConclusionsAll 3 doses of intranasal midazolam were effective in modifying the behaviour of the uncooperative child patient to accept dental treatment. This was irrespective of fasting.

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