Ankylosis of nonresorbable hydroxyapatite graft material as a contributing factor in recurrent periodontitis.
Ankylosis of nonresorbable hydroxyapatite graft material as a contributing factor in recurrent periodontitis.
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不可吸收的羟基磷灰石移植材料的强直是复发性牙周炎的一个促成因素。
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Koichi Ito
中科院分区：
文献类型：
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作者：
N. Yoshinuma;Shuichi Sato;T. Fukuyama;M. Murai;Koichi Ito
许多研究表明，同种异体骨移植在临床上是稳定和安全的。然而，术后问题如关节强直和牙根吸收与异体骨移植有关。本文报告两例非吸收性羟基磷灰石（NHA）异体移植物的强直与复发性牙周炎。NHA颗粒与牙本质之间无明显边界。颗粒形状不规则，表面有斑块。据推测，NHA颗粒和牙本质的强直是复发性牙周炎的一个促成因素。
Many studies have shown that alloplastic bone grafts are clinically stable and safe. Nevertheless, postoperative problems such as ankylosis and root resorption are associated with alloplastic bone grafts. This report examined two cases of ankylosis of nonresorbable hydroxyapatite (NHA) alloplastic grafts associated with recurrent periodontitis. There was no clear border between the NHA particles and dentin. The particles were irregularly shaped and had plaque on the surfaces. It is postulated that ankylosis of NHA particles and dentin is a contributing factor in recurrent periodontitis.