颧牙槽嵴微种植体植入与上颌窦底位置关系的解剖研究

doi:10.19439/j.sjos.2017.06.011

上海口腔医学 ›› 2017, Vol. 26 ›› Issue (6): 623-627.doi: 10.19439/j.sjos.2017.06.011

颧牙槽嵴微种植体植入与上颌窦底位置关系的解剖研究

王鹏¹, 陈铮晰², 吴军^2*, 陈振琦^2*

1.上海市浦东医院口腔科,上海 201200;
2.上海交通大学医学院附属第九人民医院·口腔医学院口腔正畸科,上海 200011;

收稿日期:2017-05-11 修回日期:2017-07-07 出版日期:2017-12-20 发布日期:2018-01-09
通讯作者: 吴军, E-mail: wujunwr@aliyun.com;
作者简介:王鹏（1969-）,男,学士,E-mail: dentistwp1969@126.com

Study of three-dimensional anatomical relationship between infrazygomatic crest and maxillary sinus for mini-screw insertion

WANG Peng¹, CHEN Zheng-xi², WU Jun², CHEN Zhen-qi²

1.Department of Stomatology, Hospital of Shanghai Pudong District. Shanghai 201200;
2.Department of Orthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine. Shanghai 200011, China

Received:2017-05-11 Revised:2017-07-07 Online:2017-12-20 Published:2018-01-09

摘要/Abstract

摘要： 目的: 通过对颧牙槽嵴区微种植体植入与上颌窦底位置关系进行研究,以期为临床上在颧牙槽嵴处安全植入种植钉提供参考。方法: 对19例正畸患者的37个上颌第一恒磨牙根方的颧牙槽嵴进行锥形束CT（CBCT）测量和分析,依上颌窦底位置分为窦低组与窦高组,比较2组之间颧牙槽嵴宽度的差别。同时测量上颌第一恒磨牙的近远中颊根的根长,以确定上颌种植钉植入的部位。采用SPSS20.0软件包对数据进行统计学分析。结果: 窦低组的颧牙槽嵴宽度显著小于窦高组的颧牙槽嵴宽度,窦低组24例,窦高组13组。男性上颌第一恒磨牙的近远中颊根长度平均值为12.62 mm和12.30 mm,女性近远中颊根的长度平均值为11.53 mm和11.15 mm。结论: 上颌窦底的位置决定了颧牙槽嵴的宽度,窦高组可以为种植体植入提供足够的骨质宽度支持。为确保牙根尖组织的安全,应在根尖上方1~2 mm以上植入。男性患者的植入部位约在釉-牙骨质界以上13.62 mm,女性约为12.53 mm。

关键词: 颧牙槽嵴, 微种植体, 锥形束CT, 上颌窦

Abstract: PURPOSE: To measure the thickness of the infrazygomatic(IZ) crest above the maxillary first molar and analyze its relationship with maxillary sinus as to derive clinical implications and provide guidance for placements of orthodontic mini-screw. METHODS: Thirty seven cone-beam CT(CBCT) images of infrazygomatic crest sites were collected from data of 19 adult inter-treatment orthodontic patients. Based on the relationship of maxillary sinus floor and mesiobuccal root of the maxillary first molar, the subjects were divided into high sinus floor group (n=13) and low sinus floor group (n=24). Both lengths of mesial and distal buccal root of the maxillary first molar were measured as a reference for mini-screw positioning. Statistical analysis of the data was conducted using SPSS 20.0 software package. RESULTS: IZ crest thickness above the maxillary first molar in high sinus group was larger than that in low sinus group, and the thickness decreased as the measurement moved towards the skull base in both groups. Lengths of mesial and distal buccal root of the maxillary first molar were (12.62±0.55)mm and (12.30±0.48)mm respectively in male patients alongside (11.53±0.24)mm and (11.15±0.26)mm respectively in female patients. CONCLUSIONS: Our data indicated pre-insertion evaluation of the appropriate level of maxillary sinus floor should be performed before placement of mini-screw using CBCT. In order to avoid injury to the mesiobuccal root of the maxillary first molar and enhance the stability of inserted miniscrew, positions for miniscrew implant insertion should be over 13.62 mm in Chinese male patients and 12.53 mm in female patients at the vertical level from buccal CEJ.

Key words: Infrazygomatic Crest, Mini-screw, Cone-beam CT, Maxillary sinus

中图分类号:

R782.1

王鹏, 陈铮晰, 吴军, 陈振琦. 颧牙槽嵴微种植体植入与上颌窦底位置关系的解剖研究[J]. 上海口腔医学, 2017, 26(6): 623-627.

WANG Peng, CHEN Zheng-xi, WU Jun, CHEN Zhen-qi. Study of three-dimensional anatomical relationship between infrazygomatic crest and maxillary sinus for mini-screw insertion[J]. Shanghai Journal of Stomatology, 2017, 26(6): 623-627.

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颧牙槽嵴微种植体植入与上颌窦底位置关系的解剖研究

Study of three-dimensional anatomical relationship between infrazygomatic crest and maxillary sinus for mini-screw insertion

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