Pain Perception During Inferior Alveolar Nerve Block Administration in Children Using Vibraject and Dental Vibe Versus Conventional Syringe

Inclusion Criteria: * Children aged 6-8 years. * Cooperative children (Rating 3 or 4 based on the Frankl behaviour scale). * Medically fit children (ASA I). * Children mentally capable of communication. * First dental visit (no previous history of injection of LA). * Patient requiring extraction/pulp therapy/cavity preparation in mandibular primary molars Exclusion Criteria: * Uncooperative patient (other than 3 or 4 based on the Frankl behaviour scale). * Medically unfit children (other than ASA 1). * Parental refusal of participation. * Children under medications (antibiotics and analgesics) for the previous 48 hours that could alter the pain perception. * Children who are allergic to local anaesthesia.