中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (23): 3616-3620.doi: 10.12307/2023.527

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

锥形束CT对上颌前牙区牙龈生物型的测量分析

王文丽1,2,罗兰堃2,傅亚婷3,楚  程3,马  潇1,刘  华2   

  1. 1石河子大学医学院,新疆维吾尔自治区石河子市  832000;乌鲁木齐市口腔医院,2牙周黏膜科,3放射科,新疆维吾尔自治区乌鲁木齐市  830002
  • 收稿日期:2022-08-04 接受日期:2022-09-06 出版日期:2023-08-18 发布日期:2023-01-14
  • 通讯作者: 刘华,硕士,主任医师,副教授,硕士生导师,乌鲁木齐市口腔医院牙周黏膜科,新疆维吾尔自治区乌鲁木齐市 830002
  • 作者简介:王文丽,女,1997年生,甘肃省天水市人,汉族,石河子大学在读硕士,医师,主要从事牙周病学研究。
  • 基金资助:
    新疆维吾尔自治区自然科学基金面上项目(2021D01A46),项目负责人:刘华;自治区天山青年计划(2018Q130),项目负责人:刘华

Measurement and analysis of gingival biotype in maxillary anterior teeth using cone-beam computed tomography

Wang Wenli1, 2, Luo Lankun2, Fu Yating3, Chu Cheng3, Ma Xiao1, Liu Hua2   

  1. 1Shihezi University School of Medicine, Shihezi 832000, Xinjiang Uygur Autonomous Region, China; 2Department of Periodontics & Oral Mucosa, Urumqi Stomatology Hospital, Urumqi 830002, Xinjiang Uygur Autonomous Region, China; 3Department of Radiology, Urumqi Stomatology Hospital, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • Received:2022-08-04 Accepted:2022-09-06 Online:2023-08-18 Published:2023-01-14
  • Contact: Liu Hua, Master, Chief physician, Associate professor, Master’s supervisor, Department of Periodontics & Oral Mucosa, Urumqi Stomatology Hospital, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • About author:Wang Wenli, Master candidate, Physician, Shihezi University School of Medicine, Shihezi 832000, Xinjiang Uygur Autonomous Region, China; Department of Periodontics & Oral Mucosa, Urumqi Stomatology Hospital, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    the Natural Science Foundation of Xinjiang Autonomous Region (General Program), No. 2021D01A46 (to LH); the Tianshan Youth Program of Xinjiang Autonomous Region, No. 2018Q130 (to LH)

摘要:

文题释义:

锥形束CT:是锥形束投照计算机重组断层影像设备,其原理是X射线发生器以较低的射线量围绕投照体做环形数字式投照,多次(180-360次)数字投照后,集中所获得的数据在计算机中重组,进一步获得三维图像。锥形束CT具有放射剂量小、成像效率高、费用较为低廉、操作使用方便等诸多优点,是近年来被广泛应用于口腔颌面部的影像学检查手段。
牙龈生物型:一般是指受到遗传和环境因素影响的牙周组织及牙体组织的形态特征。

背景:目前锥形束CT无法清晰显示牙龈软组织轮廓界限,不仅易受上唇组织及金属修复体伪影的干扰,重复性欠佳,而且不利于临床准确测量软组织,辅助判断牙龈生物型。
目的:探索运用锥形束CT结合显影组合物稳定便捷地显影牙龈形态方法的可行性及判断牙龈生物型的可信度。 
方法:纳入牙周健康的30名受试者共180颗上颌前牙,采用直接测量法测量唇侧中央龈缘下2 mm处牙龈厚度及唇侧角化龈宽度;并将成分为光固化牙龈屏障树脂与碘海醇注射液的显影组合物涂布于测量区域,放置定位丝后进行锥形束CT拍摄并测量牙龈厚度及唇侧角化龈宽度。
结果与结论:锥形束CT结合显影组合物法测量唇侧中央龈缘下2 mm处牙龈厚度及唇侧角化龈宽度具有良好可重复性(P > 0.05)和可信度

(ICC > 0.9),与直接测量法相比差异均无显著性(P > 0.05),两种方法判断牙龈生物型的一致性检验结果为强一致性(Kappa=0.882)。通过锥形束CT结合显影组合物法可使牙龈轮廓清晰显影,具有良好可行性和可信度。

https://orcid.org/0000-0003-2491-0220(王文丽)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 锥形束计算机体层摄影术, 显影剂, 牙龈生物型, 牙龈厚度, 角化龈宽度, 成像, 上颌前牙

Abstract: BACKGROUND: At present, cone-beam computed tomography (CBCT) cannot clearly portray the outline of gingival soft tissue, which is not only easily susceptible to interference from lip tissue and metal restoration artifacts and has poor repeatability, but also is not conducive to accurately measure soft tissue and classify gingival biotypes.
OBJECTIVE: To access the feasibility of using CBCT in conjunction with novel radiocontrast agent to develop gingival morphology in a stable and convenient manner, as well as the reliability of classifying gingival biotypes.
METHODS: Totally 180 maxillary anterior teeth from 30 healthy volunteers were collected and the gingival thickness 2 mm below the gingival margin and the width of keratinized gingiva were measured directly. The composition of light-cure gingival barrier resin and iohexol injection was applied to the measurement area. Then the positioning wire was set up and CBCT imaging was used to assess the width of keratinized gingiva and gingiva thickness at 2 mm below the gingival margin.
RESULTS AND CONCLUSION: In comparison to the direct measurement method, the approach of CBCT in conjunction with the novel radiocontrast agent demonstrated good reproducibility (P > 0.05) and reliability (ICC > 0.9), when measuring the gingival thickness and the width of keratinized gingiva on the labial side. The concordance of two approaches to classify gingival biotypes which was examined using the Kappa concordance test showed good consistency (Kappa=0.882). There were no significant statistical differences between the two approaches (P > 0.05). Overall, CBCT combined with the radiocontrast agent can clearly develop the gingival outline, which shows good feasibility and reliability.

Key words: cone-beam computed tomography, radiocontrast, gingival biotype, gingival thickness, width of keratinized gingiva, imaging, maxillary anterior tooth

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