The Effects of Antioxidant Application and Time Factor on Fiber Post Bonding to Root Dentin after Intracoronal Bleaching
Keywords:Internal bleaching, devital bleaching, antioxidant application, sodium ascorbate, delayed cementation, push-out
Aim: The aim was to evaluate the effects of antioxidant application and delayed cementation on the bond strength of fiber posts after intracoronal bleaching.
Methodology: Fifty-five maxillary central incisors were used. Root canals were enlarged using Reciproc system up to R40 instrument. Root canals were irrigated, dried with paper-points, and obturated with gutta-percha and a sealer. In 44 teeth, root canal fillings were removed 2-mm coronally and canal orificies were sealed with glass-ionomer-cement. A 37% CP gel was used to bleach the teeth. Five experimental groups were defined (n=11). G1: No bleaching, G2: Immediate FPC, G3: Immediate FPC after SA application, G4: 14-days delayed FPC, G5: 14-days delayed FPC after SA application. Push-out tests were performed. Statistical interpretations were made (α=0.05).
Results: There was no significant difference among the groups in apical thirds (p>0.05). However, significant differences were detected among the groups in middle and coronal thirds (p<0.05).
Conclusion: The 14-days delayed cementation seems to be a more reliable method than the SA application before FPC procedure after intracoronal bleaching.
How to cite this article: Aslan T, Üstün Y, Sağsen B, Şener İ, Biricik E, Tatlı Ş. The effects of antioxidant application and time factor on fiber post bonding to root dentin after intracoronal bleaching. Int Dent Res 2018;8(1):22-7.
Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.