Yazar "Bayram E." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Effect of bioaggregate thickness on the apical sealing of root-end filling
    (2013) Bayram M.; Bayram E.; Bozkurt A.
    Objectives: The purpose of this study was to compare the ability of different cavity thickness of Bioaggragate to prevent microleakage using computerized fluid filtration method. Materials and Methods: Fifty single- rooted human teeth were selected for this study. The root canals were prepared with Ni-Ti rotary files with 5% Sodium hypocloride (NaOCl) solution as the irrigant. Then sealed with gutta-percha points(DiaDent®GuttaPercha Points, Seul, SouthCorea) and AH Plus (Dentsply Maillefer, Ballaigues, İsviçre). After root end resection, fifty theeth were randomly selected into 1 of 4 test groups containing 10 teeth each, and positive and negative control groups containing 5 teeth each. Group 1: 1mm, Group 2: 2mm, Group 3: 3mm, Group 4: 6mm cavity thickness. And then all prepared root-end cavities filled with Bioaggregate. Leakage was evaluated using with a computarized fluid filtration model. Results: Statistical analysis showed that group 1 leaked more than all other groups (p<0.001). There was a significant difference between group 1 and group 3(p<0.001),and also there was a significant difference between group 2 and group 3. In contrast there was no significant difference between group 3 and group 4 (p>0.001). Conclusions: According to this study, the thickness of root end cavity must be minimum 3mm and more when Bioaggregate root end filling material is used.
  • Küçük Resim Yok
    Öğe
    Fluid flow evaluation of coronal microleakage intraorifice barrier materials in endodontically treated teeth
    (2013) Bayram H.M.; Çelikten B.; Bayram E.; Bozkurt A.
    Objective: The objective of this study was to compare the coronal microleakage intraorifice barrier materials, called CoroSeal (CS), fissur sealant (FS), flowable composite FC, and policarboksilate cement (PC), by using the computerized fluid filtration method. Materials and Methods: Fifty freshly extracted, single-canal human maxillary central teeth were used in this study. The teeth were decoronated to a standardized root length of 15 mm. After preparation and irrigation, all the teeth were obturated with gutta-percha and AH-Plus. In all teeth, the coronal 2 mm of root filling was removed and replaced with one of the intraorifice barriers. According to intraorifice barriers, teeth were divided randomly into 4 experimental groups (n = 10) and 2 control groups (n = 5). Group 1: CS; Group 2: FS; Group 3: FC; and Group 4: PC. Positive Control Group: No barrier material was used. Negative Control Group: Roots were completely coated with the nail polish, including the orifice. Leakage was evaluated by using a computerized fluid filtration model. Differences in fluid filtration among groups were subjected to statistical analysis using the Kruskal-Wallis Test and multiple comparisons test. Results: A value of P < 0.05 was statistically significant. Statistical analysis has indicated that the CS leaked significantly less than other groups (P < 0.05). There was a significant difference between FS and PC (P < 0.05), in contrast there was no significant difference between FS and FC (P > 0.05). Conclusions: Using the CS material as an intraorrifice barrier material reduced amount of microleakage as compared with FS, FC, and PC. © 2013 Dental Investigations Society.