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冲顶式上颌窦提升植骨牙种植动物模型的建立
Authors
Publication date
1 January 2004
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】建立冲顶式上颌窦提升植骨牙种植的动物模型,以供上颌窦提升植骨牙种植的深入研究。【方法】拔除16只狗双侧上颌第一、第二磨牙,行冲顶式上颌窦提升,提升高度为2mm、4mm,一侧植骨,一侧不植骨,分别于术后3周、6周、12周、24周处死动物各4只,标本都经大体观察、放射检查及组织学检查。【结果】移植骨愈合良好,种植体牢固,窦底黏膜完整。上颌窦提升2mm时,种植体顶端可见骨质存在;提升4mm时,只见窦黏膜,不见新骨。上颌窦提升同期植骨并植入种植体,可见种植体顶端有新骨形成,覆盖种植体。【结论】狗有理想的上颌窦提升解剖条件,窦底提升术时可将窦底黏膜提升并保持完整,移植骨能形成新骨与牙种植体形成骨性结合,可作为研究上颌窦提升植骨同期牙种植动物模型
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Last time updated on 15/10/2024