Comparision of Apical Leakage Between Immediate Versus Delayed Post Space Preparation Using Various Root Canal Sealers: an Invitro Study

Aim of the study: The present study evaluated the apical leakage of endodontic sealers after immediate and delayed post space preparation. Methodology: Sixty-six extracted human maxillary incisors with straight root and single canals were selected and decoronated. They were divided into five groups and obturated using three different sealers (AH Plus sealer, Apexit Plus sealer, Bioceramic sealer) respectively. Specimens were longitudinally sectioned and were observed under stereomicroscope. Results were analyzed and tabulated. Results: There was a statistically significant difference between the immediate and delayed post space preparation. Immediate post space preparation showed less leakage compare to delayed post space preparation. Conclusion: Bioceramic Sealer showed the least leakage at different intervals of post space preparation followed by AH Plus sealer.  Apexit Plus showed more leakage among the groups at different intervals