Pain during primary molar local anaesthesia with SleeperOne5 computerized device versus conventional syringe: A randomized, split-mouth, crossover, controlled trial.

Background: Because of controversial results from clinical studies comparing different dental local anesthesia methods in children, the primary objective of this randomized, split-mouth, crossover, controlled trial was to compare pain intensity during local anaesthesia (LA) performed with a computer-controlled LA delivery system (C-CLADS) versus a conventional syringe (CONV). Secondary objectives included comparisons during dental treatment.

Methods: Participants (4-8 years) with tooth pair requiring similar treatment were recruited from five French hospitals.