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 3 mm and more when Bioaggregate root end filling material is used.
Keywords: Apical leakage, root end filling material, ceramics.
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 3 mm and more when Bioaggregate root end filling material is used.
Keywords: Apical leakage, root end filling material, ceramics.
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