Singh 2002.

Methods	Parallel group RCT Location: India Funding: not stated
Participants	Inclusion criteria: healthy children ASA I referred for short dental procedures  n = 90 (30 per group) Age range: 3 to 9 years
Interventions	Group 1: midazolam (0.5 mg/kg) Group 2: triclofos (70 mg/kg) Group 3: promethazine (1.2 mg/kg) All orally
Outcomes	Sedation score, treatment completion
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"Patients were randomised" ‐ method of sequence generation not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding ‐ Participant	Low risk	Study described as double‐blind
Blinding ‐ Operator/sedationist	Low risk	Study described as double‐blind
Blinding ‐ Outcome assessor	Low risk	Study described as double‐blind
Incomplete outcome assessment	High risk	Numbers evaluated not stated
Free of selective reporting	Low risk	All selected variables reported
Free of other bias	Unclear risk	Little information on participants in each group at baseline