Compare Between the Effect of CGF and PRF on Revascularization of Immature Roots of the Mandibular Permanent First Molar

Concentrated Growth Factor Versus Platelets-rich Fibrin in Revascularization of Immature Necrotic Mandibular First Permanent Molar.

in this study investigators do revascularization technique to promote root growth of immature mandibular first permanent molar by using CGF and PRF from blood sample of patients

children 6-8 yrs were selected for this study because the roots of mandibular first permanent molar is not completed. then access cavity is opened, irrigation protocol is applied, intracanal medication is applied and the cavity is sealed with temporary filling. after three weeks blood sample is obtained from patients to get CGF and PRF membranes. temporary filling is removed . intracanal medication is removed, over instrumentation is done to get some intracanal blood the wait tell blood clot is formed then CGF or PRF is applied on the clot the bio dentine is applied and cavity is sealed with composite restoration

Inclusion Criteria:

• Children with immature necrotic lower fitrst permanent molar.
• No history of repeated pathosis or cellulitis.
• Patients accept the treatment modality.
• Patient-free from systemic, allergic or genetic problems.

Exclusion Criteria:

• Tooth mobility.
• Teeth with non-restorable crowns.
• Children with facial cellulitis
• Children with draining fistula
• Children with a history of recurrent preapical pathosis