Evaluation of Calcium Phosphate Cement As a Root CanalSealer Filling Material
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2001年第4期
论文作者：戴红莲
文章页码：14 - 18
摘 要：Calcium phosphate cement for root end seeding was obtained by mixing α-tricalcium phosplitueand additives with an aqueous solution of citric . Powder and liquid were mixed at a ratio of 1.25 g/ mL. The biocompatibility of this material was investigated primarily by subcutaneous implantation tests . Then calcium phos-phate cement was used to fill three adult dogs ’ root canal, both calcium hydroxide paste and hydroxyapatite pasteas control. The animals were killed at 4,12,20 weeks postoperatively respectively. The effects of different materials on the apical closure, restoration of periapical tissues and adaptability to the dentinal surface were examined byoptical and electronic microscope . The observation at 20 weeks shows that the calcium phosphate cement, has the potentialities of being a root canal sealer filling material available for pulpless teeth with open-apex and destructiveperiapical tissue.
戴红莲
摘 要：Calcium phosphate cement for root end seeding was obtained by mixing α-tricalcium phosplitueand additives with an aqueous solution of citric . Powder and liquid were mixed at a ratio of 1.25 g/ mL. The biocompatibility of this material was investigated primarily by subcutaneous implantation tests . Then calcium phos-phate cement was used to fill three adult dogs ’ root canal, both calcium hydroxide paste and hydroxyapatite pasteas control. The animals were killed at 4,12,20 weeks postoperatively respectively. The effects of different materials on the apical closure, restoration of periapical tissues and adaptability to the dentinal surface were examined byoptical and electronic microscope . The observation at 20 weeks shows that the calcium phosphate cement, has the potentialities of being a root canal sealer filling material available for pulpless teeth with open-apex and destructiveperiapical tissue.
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