| Popis: |
Background: Triple antibiotic pastes (TAP) has gained popularity as a root canal medicament in regenerative endodontic procedures and other endodontic treatment modalities. As this medicament changes the chemical structure of dentine, it may affect the bond strength of endodontic sealers to radicular dentine. This study aimed to evaluate the effect of TAP on the bond Strength of epoxy and methacrylate resin- based sealers to root canal dentine.Methods: In this in vitro study, eighty single-rooted human mandibular premolars were prepared using ProTaper rotary system. The specimens were randomly divided into a control group (without intracanal dressing) and an experimental group receiving TAP (n = 40). The intracanal dressing was removed after three weeks. Then samples of each group were randomly divided into four subgroups (n = 10) and obturated with gutta-percha and different resin-based sealers. G1: AH Plus, G2: Syntex, G3: EndoREZ, G4: MetaSEAL. After one week, 16 Slices of 1±0.1 mm thickness were obtained from the midroots of teeth in each subgroup and a push-out test was used to measure the bond strength. Slices were examined using a stereomicroscope at 30× to determine the mode of failure. The data were analyzed using two-way analysis of variance, one- way analysis of variance and Tukey post hoc tests (α = 0.05).Results: Compared to control group, TAP significantly increased the bond strength of MetaSeal and EndoREZ (pConclusions: TAP significantly increased the bond strength of methacrylate resin- based sealers. |
