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年轻恒牙再植术与延迟再植
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- Author:
- No author available
- Journal Title:
- Chinese Journal of Stomatology
- Issue:
- 6
- DOI:
- 10.3760/cma.j.issn.1002-0098.2013.06.001
- Key Word:
- No keyword available
Abstract： 牙齿完全脱出(avulsion)是最严重的一种牙齿损伤,可以造成牙周韧带撕裂、牙髓组织丧失血供及牙骨质损伤.年轻恒牙牙根尚未发育完成,而且牙周膜具有弹性,水平撞击常可导致牙齿完全脱出,上颌中切牙最好发.牙齿完全脱出的治疗方法是牙齿再植术.再植牙愈合和修复是一个复杂的过程,受多种因素影响.再植牙的预后包括牙髓组织预后和牙周组织预后两方面.成人再植牙多数都不能成功保留活髓,再植牙预后多指牙周组织预后.牙再植后牙周组织愈合方式分为牙周膜愈合(healing with a normal periodontal ligament)、表面吸收愈合(healing with surface resorption,repair-related resorption)、牙齿固连或替代性吸收(healing with ankylosis,replacement resorption)、炎性吸收(healing with inflammatory resorption,infection-related resorption).通常所说的再植牙存活指牙周膜愈合,是最佳的愈合方式.
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