氧化锌丁香油；氢氧化钙；玻璃离；树脂根管封闭剂。
Zinc oxide eugenol sealer; Calcium hydroxide sealer; Glass ionomer sealer; Resin root canal sealer.
目的比较三金羟磷灰石根管封闭剂与传统根管封闭剂的封闭能力。
Objective To compare the apical sealing ability of Sankin hydroxyapatite root canal sealer with traditional root canal sealers.
摘要目的评价三种不同的根管封闭剂在一次性根管治疗中的术后反应和远期疗效。
Abstract : Purpose To evaluate the root canal treatment reaction and long-term efficacy of three different root canal sealers.
根管封闭剂与核心充填材料、牙本质结合，封闭口腔和根尖周通道，促进尖周组织愈合。
Root canal sealer combined with the core materials and dentin could seal the access between the oral cavity and periapical tissue, promoting the healing.
良好的封闭性是根管封闭剂的重要特性之一，选择合适的检验方法检测封闭剂的封闭性至关重要。
Sealing ability of the root canal sealer is one of the most important properties, and it is a crucial step to test sealing ability of root canal sealer.
结论：纳米氧化锌糊剂、羟磷灰石糊剂和纳米羟磷灰石糊剂具有良好的组织相容性和根尖封闭性，可以作为根管封闭剂用于根管充填。
Conclusion: Nano-zinc-oxide, hydroxyapatite and nanohydroxyapatite have favorable histocompatibility and excellent apical sealing ability, so they are suitable for root filling as root canal sealers.
结论：纳米氧化锌糊剂、羟磷灰石糊剂和纳米羟磷灰石糊剂具有良好的组织相容性和根尖封闭性，可以作为根管封闭剂用于根管充填。
Conclusion: Nano-zinc-oxide, hydroxyapatite and nanohydroxyapatite have favorable histocompatibility and excellent apical sealing ability, so they are suitable for root filling as root canal sealers.
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