Purpose: Comparison the effect of massage and topical anesthetic gel on the intensity of pain due to inferior alveolar nerve block injection in 5-7 years old children, Design: Randomized Clinical Trial, Population: Children Referred to Pediatric Department of Zahedan Dental School, Inclusion Criteria: Healthy 5-7 Years Old Children Need Bilateral Inferior Alveolar Nerve Block Injection, Exclusion Criteria: Mental Retardation, Children with Systemic Disease, History of dental treatment, History of sensitivity to anesthetics, Taking medications that affect pain, Sample Size: 2 Groups of 30 ones, Subjects Intervention: Comparison the effect of massage on the intensity of pain due to intraoral injection, Pain Time: 5 Minutes Before Using Block Injection, Outcomes: Reducing the Pain of IntraOral Injection.