effectiveness of local dental anaesthetic in children

Comparison of the effectiveness of articaine 4% against lignocaine 2% in obtaining dental local analgesia among children when delivered as a buccal infiltration or inferior alveolar nerve block injections for restorative procedures in mandibular posterior teeth. Dosage of trial anaesthetic limited only to a maximum of 2.2 ml cartridge of the local anaesthetic agent. Dosage of local analgesic agent titrated to maximum of 5 mg/kg body weight. If local analgesia was not achieved with the trial anaesthetic patient reappointed for another appointment for the treatment to be completed using standard treatment protocol or supplement with standard local anaesthetic (Lignociane 2%) if the weight of the child allowed supplementation, doseage not to exceed 5mg/kg body weight. Mode of administration, buccal or inferior alveolar block, and type of local anaesthetic used at first visit, test or control, determined by random allocation.