Inclusion Criteria:  Children classified as cooperative or potentially cooperative according to Wright's classification of child behaviour with rating 3 (positive) or 4 (definitely positive) according to Frankl behaviour rating scale. Children aged 6-8 years old. Patients who need maxillary buccal infiltration anaesthesia for vital pulp therapy or restorations.  Exclusion Criteria:  Children with any neurological or psychological disorders. Children with known allergy to topical or local anaesthetic agents. Parental refusal for participation. Children with previous history of local anaesthesia injection.