Aim In patient with non vital anterior teeth with open apecies and periapical abscess, this study was done to find whether or not the revascularization is more effective than MTA apexification in the following: 1. Change in length of the root measured in mm. 2. Increase of dentin thickness: Measured in mm. 3. Decrease in apical diameter: Measured in mm.
Materials and Method Twenty two patients suffering from non vital upper incisors with open apecies were randomly assigned into two equal groups with 11 patients each. One group was treated by regeneration and the other by MTA apexification.
Results: showed there was no statistically significant difference between the 2 groups in 1 month, after 3 months, after 6 months, after 9 months and after 12 months. Also showed that the healing outcome of radiolucency is higher in regeneration group (90.9 %) than MTA apexification group (63.6 %) which showed high percentage of success. Moreover, the healing outcome of the swelling is higher in regeneration group (81.8 %) than MTA apexification group (72.7 %) which showed high percentage of success, It also showed that the percentage increase of root length and dentin width is higher in regeneration group than MTA apexification group.
Conclusion 1- Both regeneration and MTA apexification are reliable procedures for treating necrotic immature anterior teeth with open apecies except that regeneration is preferable. 2- Regeneration has a higher rate of success concerning resolution of swelling and radiolucencies.
3- Regeneration is superior in adjusting crown-to-root ratio