中国组织工程研究

中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (12): 1837-1841.doi: 10.3969/j.issn.2095-4344.2015.12.007

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

微种植体植入初期稳定性：错颌上颌后牙区颊侧骨皮质厚度分析

邹双双，雷勇华，张亚梅，刘  璐   

  1. 中南大学湘雅医院口腔医学中心，湖南省长沙市  410000
  • 修回日期:2015-02-06 出版日期:2015-03-19 发布日期:2015-03-19
  • 通讯作者: 雷勇华，博士，教授，中南大学湘雅医院口腔医学中心，湖南省长沙市 410000
  • 作者简介:邹双双，女，1986年生，湖南省祁东县人，汉族，中南大学湘雅医院口腔医学中心毕业，硕士，主要从事口腔正畸学研究。
  • 基金资助:

    中南大学研究生自主创新项目(2013zzts305)

Primary stability of mini-screw: buccal cortical thickness in maxillary posterior area of malocclusion

Zou Shuang-shuang, Lei Yong-hua, Zhang Ya-mei, Liu Lu   

  1. Center of Stomatology, Xiangya Hospital of Central South University, Changsha 410000, Hunan Province, China
  • Revised:2015-02-06 Online:2015-03-19 Published:2015-03-19
  • Contact: Lei Yong-hua, M.D., Professor, Center of Stomatology, Xiangya Hospital of Central South University, Changsha 410000, Hunan Province, China
  • About author:Zou Shuang-shuang, Master, Center of Stomatology, Xiangya Hospital of Central South University, Changsha 410000, Hunan Province, China
  • Supported by:

    the Innovation Program of Postgraduates of Central South University, No. 2013zzts305

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摘要：

背景：研究表明植入部位牙槽骨骨皮质厚度是影响微种植体初期稳定性的重要因素，因此了解颌骨骨皮质厚度对选择微种植体植入部位和预测种植成功率十分重要。
目的：探讨青少年安氏Ⅱ类Ⅰ分类错颌患者上颌后牙区颊侧骨皮质厚度分布规律。
方法：获取52例青少年安氏Ⅱ类Ⅰ分类错颌患者锥形束CT影像资料，男女各26例，测量男、女两组上颌骨14-15间、15-16间、16-17间、24-25间、25-26间、26-27间距离牙槽嵴顶分别为2，4，6，8 mm水平的颊侧骨皮质厚度。
结果与结论：①组内比较：在女性组中，左侧与右侧上颌后牙区根间颊侧骨皮质厚度比较差异无显著性意义(P > 0.05)，上颌5-6根间距离牙槽嵴顶2 mm水平处的颊侧皮质骨厚度低于距离牙槽嵴顶8 mm水平处(P < 0.05)，上颌6-7根间距离牙槽嵴顶2 mm水平处的颊侧皮质骨厚度低于距离牙槽嵴顶8 mm水平处(P < 0.05)，颊侧骨皮质厚度在同一根间位置表现出由牙槽嵴向根尖增厚的趋势，距离牙槽嵴顶8 mm水平处最大；在距离牙槽嵴顶8 mm水平处，上颌4-5根间骨皮质厚度低于6-7根间(P < 0.05)。男性组与女性组表现相同。②组间比较：男性组与女性组对应位点的骨皮质厚度比较差异均无显著性意义(P > 0.05)。表明青少年安氏Ⅱ类Ⅰ分类错颌上颌4-5、5-6、6-7根间距离牙槽嵴顶2，4，6，8 mm水平的双侧颊侧皮质骨厚度均可满足微种植钉植入要求；从第一前磨牙往牙弓后部移行，颊侧骨皮质骨厚度在各位点分布较均匀；上颌后牙区颊侧距离牙槽嵴顶6 mm以上的范围多靠近上颌窦，植入时避开此区，防止上颌窦穿通；颊侧骨皮质厚度由牙槽嵴顶向根尖方向逐渐增大，越靠近根方，厚度越大，植入时可以获得更好的初期稳定性。


中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程


全文链接：

关键词: 生物材料, 口腔生物材料, 安氏Ⅱ类Ⅰ分类错颌, 微种植体, 牙槽骨, 骨皮质厚度, 锥形束CT

Abstract:

BACKGROUND: Mini-screw stability is primarily related to alveolar bone cortical thickness. It is necessary to learn cortical thickness to choose suitable implanting sites and predict success rate.
OBJECTIVE: To evaluate the buccal cortical thickness in maxillary posterior area of Class II Division I malocclusion adolescents.
METHODS: Fifty-two adolescents (including 26 male and 26 female) of Class II Division I malocclusion scanned by Cone Beam Computer Tomography were involved in this study. The buccal cortical thickness of six posterior interradicular sites (14-15, 15-16, 16-17, 24-25, 25-26, 26-27) at four bone levels (2, 4, 6, 8 mm) from the 
alveolar crest in both boys and girls were measured.
RESULTS AND CONCLUSION: (1) There was no statistically significant difference in alveolar cortical thickness between left and right sides in the girls (P > 0.05); cortical thickness of 5-6 and 6-7 at 8 mm was thicker than that at 2 mm (P < 0.05) and cortical thickness of 6-7 at 2 mm was smaller than that at 8 mm (P < 0.05). The cortical thickness increased from crest to base of alveolar crest and reached the peak at 8 mm. Cortical thickness of 6-7 was thicker than 4-5 at 8 mm depth (P < 0.05). The results of males were the same as females. (2) There was no statistically significant difference in alveolar cortical thickness of the same site between males and females (P > 0.05). All sites in this study were suitable for mini-screw implantation; from the first molar to posterior dental arch, buccal cortical thickness is well-distributed; it is dangerous for implantation in the areas around the first molar more than 6 mm, where the frequent presence of the maxillary sinus is observed. There is an increase of buccal cortical thickness from crest to base of alveolar crest, obtaining good initial stability.


中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程


全文链接：

Key words: Dental Implants, Alveolar Bone Loss, Denture Retention

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