• Juan Nie, Chanchan Chen, Jing Xie, and Guicong Ding.
• Shenzhen Children's Hospital of China Medical University, Shenzhen, 518026, China.
• BMC Anesthesiol. 2023 Oct 10; 23 (1): 341341.

BackgroundModerate to deep sedation is required for dental treatment of children with dental anxiety. Midazolam is the most commonly used sedative, whereas intranasal dexmedetomidine is increasingly used in pediatric sedation.ObjectiveThe aim of this trial was to compare the sedative efficacy of oral midazolam alone with that of intranasal dexmedetomidine plus oral midazolam during dental treatment of children with dental anxiety.DesignIn total, 83 children (aged 3-12 years) scheduled to undergo dental sedation were randomized to receive oral midazolam (0.5 mg/kg) and intranasal placebo, or oral midazolam (0.5 mg/kg) plus intranasal dexmedetomidine (2 µg/kg). The primary outcome was the rate of successful sedation for dental treatment. Secondary outcomes were the onset time and adverse events during and after treatment. Data analyses involved descriptive statistics and nonparametric tests.ResultsThe rate of successful sedation was significantly higher in combination group (P = 0.007), although the sedation onset time was significantly longer in combination group (17.5 ± 2.4 min) than in monotherapy group (15.7 ± 1.8) (P = 0.003). No children required medical intervention or oxygen therapy for hemodynamic disturbances, and the incidences of adverse events had no significant difference between groups (P = 0.660).ConclusionCombined treatment with oral midazolam (0.5 mg/kg) and intranasal dexmedetomidine (2 µg/kg) is more significantly effective for managing the behavior of non-cooperative children during dental treatment, compared to oral midazolam (0.5 mg/kg) alone. (Chinese Clinical Trial Registry: ChiCTR2100042300) TRIAL REGISTRATION: ChiCTR2100042300, Clinical trial first registration date: 17/01/2021.© 2023. BioMed Central Ltd., part of Springer Nature.

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