الفهرس 
Physical PropertiesOnly 14 pages are availabe for public view
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Abstract
The aim of this study was to evaluate a Flavonoid-based experimental root canal sealer regarding its physical properties, adaptability, and cytotoxicity comparing it to Tech Biosealer Endo and MTA-Fillapex. One hundred forty four discs (48 each sealer) were subdivided into 4 subgroups for the evaluation of radio-opacity, initial and final setting time, pH, and solubility. Thirty teeth were decoronated, instrumented, dried and obturated using lateral compaction technique (10 teeth using each sealer) for evaluation of adaptability using SEM. Forty five disc (15 each sealer) were subdivided into 2 subgroups for evaluation cytotoxicity at 24 and 72 hours. Data was subjected to statistical analysis. Tech Biosealer Endo showed mean radio-opacity value comparable to MTA-Fillapex, while Flavonoid-based experimental sealer has mean radio-opacity value statistically significantly lower than other tested sealers. Flavonoid-based experimental sealer has shown longest mean initial and final setting times followed by MTA-Fillapex followed by Tech Biosealer Endo with a statistically significant difference between all groups. Tech Biosealer Endo and MTA-Fillapex have shown an alkaline pH at all observation periods which were statistically significantly higher than Flavonoid-based experimental sealer. At all observation periods Flavonoid-based experimental sealer showed mean percentage weight loss statistically significantly higher than other tested sealers, while the Tech Biosealer Endo shown increase in weight after 7 and 28 days.Tech Biosealer Endo has shown the best adaptation to canal walls at all root levels followed by the MTA-Fillapex and the least adaptation was seen in Flavonoid-based experimental sealer. SEM showed the best adaptation for all tested sealer to root dentin was at the middle root level followed by apical root level, while the coronal root level showed worst adaptation. MTA-Fillapex showed higher cytotoxicity than Tech Biosealer Endo and Flavonoid-based experimental sealer at all observation periods.