Comparison between Fiberglass Post Retention and Strength in Immediate and Delayed Preparation of Post-space after Endodontic Treatment

Abstract Objective: Endodontically treated teeth with inadequate crown structure need a radicular post to help restore the tooth to proper function. Therefore, finding an efficient and timely method for preparing the post space in a way that causes less change in the amount of apical flood of the canal, has been the subject of various discussions and researches for many years. In this study, we evaluate the effect of post preparation time on fiberglass post jam. Methods: This study was performed laboratory-experimental. All specimens were maxillary and single-channel. Teeth with curved roots, internal and external resorption, root fractures, open apex, severe calcification and extra canals were excluded and replaced with other suitable teeth. The samples were randomly divided into 2 groups of 24. Results: The results showed that post preparation 48 hours after endodontic treatment could have greater strength and retaining compared to post preparation time immediately after endodontic treatment, which was statistically significant (p-value <0.05). Conclusion: Finally, it can be said that post preparation after 48 hours of root canal treatment can affect the strength and adhesion of fiber posts and can also increase the retaining of fiber posts.