Evaluation of Bacterial Reduction After Pulpectomy in Primary Molars

Inclusion Criteria: * Children age 4 to 6 years * Medically free children * Cooperative children * Restorable mandibular second primary molars with signs or symptoms of irreversible pulpitis * No internal root resorption on radiograph * No external root resorption on radiograph * No periapical radiolucency * No inter-radicular radiolucency Exclusion Criteria: * Uncooperative children * Children with systemic disease * Children with physical disability * Children with mental disability * Refusal to participate * Inability to attend follow-up visits * Refusal to sign consent form * Previously accessed teeth * Mobile mandibular primary molars * Pain on percussion * Swelling on palpation or in the vestibule