Efficacy of an external cold and vibrating device in reducing discomfort during the administration of an inferior alveolar nerve block in children: A split-mouth randomised crossover study.

Local anaesthesia is the backbone of pain management. However, the administration of a local anaesthetic injection itself is considered a painful procedure and triggers fear and anxiety in the patient. A split-mouth randomised controlled crossover trial was designed to study the efficacy of an "external cold and vibrating" device in reducing discomfort during the administration of an inferior alveolar nerve block (IANB) in children.