口腔医学研究 ›› 2016, Vol. 32 ›› Issue (3): 297-300.DOI: 10.13701/j.cnki.kqyxyj.2016.03.021

• 临床研究论著 • 上一篇    下一篇

腭骨厚度CBCT与头颅定位测量值的相关性研究

刘承灵1, 王军2, 任卫萍2, 周瑞1, 栗震亚2*   

  1. 1. 兰州大学口腔医学院正畸科 甘肃 兰州 730000;
    2. 甘肃省人民医院口腔正畸科 甘肃 兰州 730000
  • 收稿日期:2015-07-23 出版日期:2016-03-28 发布日期:2016-03-29
  • 通讯作者: 栗震亚,E-mail:Lizhy_sy@163.com
  • 作者简介:刘承灵(1984~ ),女,甘肃白银人,硕士在读,主要从事口腔正畸学研究。

Correlation on the Measurements of Palatal Bone Thickness between Cone-beam Computed Tomography and Cephalometry.

LIU Cheng-ling1, WANG Jun2, REN Wei-ping2, ZHOU Rui1, LI Zhen-ya2*   

  1. 1. School of Stomatology, Lanzhou University, Lanzhou 730000, China;
    2. Department of Orthodontics, The People’s Hospital of Gansu Province, Lanzhou 730000, China
  • Received:2015-07-23 Online:2016-03-28 Published:2016-03-29

摘要: 目的: 研究腭骨厚度CBCT与头颅定位测量值之间的关系。方法: 拍摄31位错牙合畸形初诊患者的CBCT和头颅定位侧位片,腭骨厚度测量方法: 前后向从双侧上颌第一、第二前磨牙接触点(P1P2)到双侧上颌第一、第二磨牙接触点(M1M2),CBCT测量值取偏心距1.5~10 mm。所得数据采用SPSS19.0统计软件分析。结果: P1P2和P2测量平面上,CBCT在1.5 mm和5 mm偏心距时的腭骨厚度测量值小于头颅定位测量值(P<0.05);偏心距为10 mm时所有测量平面的CBCT测量值与头颅定位测量值比较无统计学意义。各个偏心距上CBCT测量值及头颅定位测量值均从P1P2点向M1M2点递减。结论: 10 mm偏心距时CBCT测量值与头颅定位测量值最为接近。P1P2测量平面上偏心距为5 mm和7.5 mm区域相对安全,可以考虑植入微种植体支抗。

关键词: 腭骨厚度, CBCT, 头颅定位侧位片, 微种植体支抗

Abstract: Objective: To study the correlation of measurements of the palatal bone thickness between cone-beamcomputed tomography and cephalometry. Methods: Both CBCT images and cephalograms of 31 malocclusion patients were taken. Measurements in the anterior-posterior dimension were obtained from the touch point between the first and second premolars to the touch point between the first and second molars of bilateral maxillary. On CBCT images, the eccentric distance wasset from 1.5mm to 10mm. SPSS19 was used for statistical analysis. Results: In the P1P2 and P2 areas, the CBCT measurements of palatal bone thickness at both 1.5mm and 5mm off-center were significantly less than the cephalometric measurements. Measurement on CBCT images at 10mm off-centerandon cephalograms did not differ significantly in any areas. Both the CBCT and cephalometry measurements of palatal bone thickness at every eccentric distance declined from P1P2 to M1M2 in the anterior-posterior dimension. Conclusion: The measurements of the palatal bone thickness on CBCT and cephalometry were the closest at 10mm off-center. In the P1P2 area, it was relatively safe to embed mini-implants in the palatal bone at 5mm and 7.5mm off-center.

Key words: Palatal bone thickness, CBCT , Cephalogram , Mini-implant anchorage

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