assessment of cement filling inside the teeth

INTERVENTION: Intervention1: zinc oxide eugenol cement: zinc oxide powder and eugenol mixture as filling material in the root canal powder liquid ratio is 1:1 and will be there in root canal till exfoliating of primary teeth Control Intervention1: zinc oxide with nigella sativa: zinc oxide powder with nigella sativa oil mixture as root canal filling in primary molars its used in power liquid ratio of 1:1 and will be there in tooth till the exfoliating stage CONDITION: Health Condition 1: K040‐ Pulpitis PRIMARY OUTCOME: radiological assessment of obturation according to coll and sardians criteriaTimepoint: immediately after treatment SECONDARY OUTCOME: clinical symptoms like pain swelling and sinus formation will be assessedTimepoint: 1 week from the day of treatment completion INCLUSION CRITERIA: 1. Children of age group selected between 3‐9 years. 2. Children with good systemic health 3. Children with Franklâ??s behaviour rating 3&4. 4. Mandibular primary molars with pulpal pathosis involving the radicular pulp. 5. History of spontaneous pain generally occurring at night time. 6. Presence of Extra oral or Intra oral swelling or sinus tract opening. 7. Primary molars with Grade I mobility due to peri radicular infection. 8. On radiographic examination any periodontal wideing or evidence of minimum bone degeneration.