Regenerative endodontic procedures (REPs) are the most recent proposal to manage immature permanent teeth with necrotic pulps. So in this study, the investigator will evaluate the clinical and radiographical revitalization success in necrotic young permanent anterior teeth of participants by using Concentrated Growth Factor versus Platelet-Rich Fibrin

has been entered

Inclusion Criteria:

• Healthy patients with immature permanent incisors
• Presence of clinical signs and symptoms of necrosis or chronic apical periodontitis. The chronic apical periodontitis signs and symptoms include little discomfort with intermittent episodes of pus discharge through the sinus tract.

Exclusion Criteria

1. Abnormal tooth mobility.

• Positive history of allergic reaction, systemic diseases, severe emotional or behavioral problems.
• Unrestorable teeth
• Abnormal tooth mobility
• Children with systemic, severe behavioral, or emotional problems

12 months

double (participant,outcomes Assessor)