中老年女性种植患者不同CBCT设备下颌管清晰度的对比研究

doi:10.13701/j.cnki.kqyxyj.2025.07.010

口腔医学研究 ›› 2025, Vol. 41 ›› Issue (7): 601-606.DOI: 10.13701/j.cnki.kqyxyj.2025.07.010

中老年女性种植患者不同CBCT设备下颌管清晰度的对比研究

罗旭辉, 刘澍, 滕跃辉, 林梓桐^*

南京大学医学院附属口腔医院,南京市口腔医院, 南京大学口腔医学研究所口腔颌面医学影像科江苏南京 210008

收稿日期:2024-12-27 出版日期:2025-07-28 发布日期:2025-07-24
通讯作者: ^*林梓桐,E-mail:linzitong_710@163.com
作者简介:罗旭辉(2000~ ) ,男,安徽人,硕士在读,主要从事口腔医学研究工作。
基金资助:
南京大学医学院附属口腔医院2015学科带头人后备人才资助项目(编号:0223A204)

Comparative Study on Mandibular Canal Clarity in Middle-aged and Elderly Female Implant Patients Using Different CBCT Devices

LUO Xuhui, LIU Shu, TENG Yuehui, LIN Zitong^*

Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing 210008, China

Received:2024-12-27 Online:2025-07-28 Published:2025-07-24

摘要/Abstract

摘要： 目的: 对比中老年女性种植患者不同锥形束CT(cone beam CT,CBCT)设备拍摄的CBCT图像下颌管的显示清晰度,为中老年种植患者CBCT成像提供指导。方法: 收集我院70例中老年女性种植患者分别使用过两种不同CBCT机型拍摄的CBCT图像,设备1为NewTom VGi(电压:110 kV, 电流:1~12 mA, 体素0.30 mm,扫描视野12×8 cm,曝光时间4.3 s),设备2为Kavo 3D exam(电压:120 kV, 电流:5 mA, 体素0.25 mm,扫描视野16×13 cm,曝光时间7 s)。由影像医师对CBCT图像的下颌管进行清晰度评分,评分分为3个等级,将2种CBCT机型的下颌管清晰度评分使用SPSS 27.0进行统计学分析。此外,影像医师对2种CBCT设备的轴位图像的噪声进行总体评分,评分分为2级。结果: 设备1的下颌管清晰度评分低于设备2,且两组间差异具有统计学意义(P<0.05);亚组分析表明,设备1(1~4 mA)亚组与设备2之间的下颌管清晰度的差异具有统计学意义(P<0.05),而设备1(5~7 mA)亚组及(8~12 mA)亚组与设备2之间的下颌管清晰度差异比较无统计学意义(P＞0.05)。除电流设置外,2个CBCT图像重建算法具有较大差异,设备1的图像无明显噪声,设备2的图像噪声较明显,表明2个设备的重建算法可能具有一定的差异。结论: 对于中老年女性种植患者,应合理选择CBCT扫描参数及图像重建算法以提升CBCT图像下颌管清晰度。

关键词: 锥形束CT, 中老年患者, 下颌管, 骨量减低, 管电流, 图像重建算法

Abstract: Objective: To compare the clarity of mandibular canal on cone-beam computed tomography (CBCT) images with different CBCT devices in middle-aged and elderly female patients. Methods: A total of 70 middle-aged and elderly female patients from our hospital had their CBCT images captured using two different CBCT devices. Device 1 was the NewTom VGi (voltage: 110 kV, current: 1-12 mA, voxel size: 0.30 mm, field of view: 12×8 cm, exposure time: 4.3 s), and Device 2 was the Kavo 3D exam (voltage: 120 kV, current: 5 mA, voxel size: 0.25 mm, field of view: 16×13 cm, exposure time: 7 s). Radiologists assessed the clarity of the mandibular canal in the CBCT images using a three-level scoring. The clarity scores of the mandibular canal from the two CBCT devices were statistically analyzed using SPSS. In addition, radiologists provided a two-levels noise scoring for the axial images of the two CBCT devices. Results: The clarity score of the mandibular canal for Device 1 was lower than that for Device 2 (P<0.05). Subgroup analysis indicated that the difference in mandibular canal clarity between the Device 1 (1-4 mA) subgroup and Device 2 was statistically significant (P<0.05), while the differences in mandibular canal clarity between Device 2 and the Device 1 (5-7 mA) subgroup as well as the (8-12 mA) subgroup were not statistically significant (P>0.05). Apart from the current settings, the two CBCT image reconstruction algorithms showed significant differences. The images from Device 1 had no noticeable noise, while the images from Device 2 exhibited more evident noise, suggesting that the reconstruction algorithms of the two devices may differ to some extent. Conclusion: For middle-aged and elderly female implant patients, CBCT scanning parameters and image reconstruction algorithms should be selected reasonably to improve the clarity of the mandibular canal on CBCT images.

Key words: cone beam CT, middle-aged and elderly patients, mandibular canal, bone loss, tube current, image reconstruction algorithm

罗旭辉, 刘澍, 滕跃辉, 林梓桐. 中老年女性种植患者不同CBCT设备下颌管清晰度的对比研究[J]. 口腔医学研究, 2025, 41(7): 601-606.

LUO Xuhui, LIU Shu, TENG Yuehui, LIN Zitong. Comparative Study on Mandibular Canal Clarity in Middle-aged and Elderly Female Implant Patients Using Different CBCT Devices[J]. Journal of Oral Science Research, 2025, 41(7): 601-606.

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中老年女性种植患者不同CBCT设备下颌管清晰度的对比研究

Comparative Study on Mandibular Canal Clarity in Middle-aged and Elderly Female Implant Patients Using Different CBCT Devices

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