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使用锥形束计算机断层扫描技术在腭部绘制最佳正畸种植体植入位点

Mapping optimal orthodontic implant sites in the palate using cone-beam computed tomography.

作者信息

Zhu Zhengxian, Zhong Lin, Zhao Yicheng, Wang Xiaoting, Qian Wenhao, Ye Niansong

机构信息

Department of Orthodontics, Shanghai Xuhui District Dental Center, Shanghai, China.

Department of Stomatology, Shanghai Jing'an District Central Hospital, Shanghai, China.

出版信息

Front Oral Health. 2024 Oct 2;5:1453665. doi: 10.3389/froh.2024.1453665. eCollection 2024.

DOI:10.3389/froh.2024.1453665
PMID:39416888
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11480054/
Abstract

OBJECTIVE

To measure the palatal soft tissue thickness and cortical bone density to determine safe regions for the placement of orthodontic mini-implants and to examine the influence of sex and age on soft tissue thickness and cortical bone density.

MATERIALS AND METHODS

Cone-beam computed tomography images of 42 patients (22 males and 20 females), including 21 adults and 21 adolescents, were examined in this study. The palatal soft tissue thickness and cortical bone density were measured at the coronal planes between the premolars (P4-5), between the second premolars and first molars (P5-6), and between the first molars and second molars (P6-7).

RESULTS

The thickness of the soft tissue revealed similar coronal planes, but the bone density varied. The mean thickness was 3.8 mm at 0°-60° and 1.5 mm at 60°-90°. P4-5 had the highest bone density (>600 HU), decreasing toward P6-7 (<600 HU). Bone density decreased from 90° to 0° coronally, whereas the soft tissue thickness increased. Age, sex, and their interaction affected bone and soft tissues.

CONCLUSIONS

In general, areas with a high bone density tended to have thin soft tissue coronally, thus the preferred implant site tends to be more anterior to the P4-5 plane and closer to 60°-90°. Considering individual variances, mapping of the recommended regions for palatal mini-implants is suggested.

摘要

目的

测量腭部软组织厚度和皮质骨密度，以确定正畸微型种植体植入的安全区域，并研究性别和年龄对软组织厚度及皮质骨密度的影响。

材料与方法

本研究检查了42例患者（22例男性和20例女性）的锥形束计算机断层扫描图像，其中包括21例成年人和21例青少年。在双尖牙之间（P4-5）、第二双尖牙与第一磨牙之间（P5-6）以及第一磨牙与第二磨牙之间（P6-7）的冠状面测量腭部软组织厚度和皮质骨密度。

结果

软组织厚度在各冠状面相似，但骨密度有所不同。0°至60°时平均厚度为3.8 mm，60°至90°时为1.5 mm。P4-5骨密度最高（>600 HU），向P6-7逐渐降低（<600 HU）。骨密度从冠状面90°至0°逐渐降低，而软组织厚度增加。年龄、性别及其相互作用对骨组织和软组织均有影响。

结论

一般来说，骨密度高的区域在冠状面软组织往往较薄，因此理想的种植部位倾向于在P4-5平面更靠前且更靠近60°-90°的位置。考虑到个体差异，建议绘制腭部微型种植体的推荐区域图。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/f694190aa317/froh-05-1453665-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/87e4f90f91fe/froh-05-1453665-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/5e76117e6d8e/froh-05-1453665-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/86980019e28d/froh-05-1453665-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/439f87d45eaa/froh-05-1453665-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/35f035eb1747/froh-05-1453665-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/e2bacc4cfd02/froh-05-1453665-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/9cf23db35a03/froh-05-1453665-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/f694190aa317/froh-05-1453665-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/87e4f90f91fe/froh-05-1453665-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/5e76117e6d8e/froh-05-1453665-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/86980019e28d/froh-05-1453665-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/439f87d45eaa/froh-05-1453665-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/35f035eb1747/froh-05-1453665-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/e2bacc4cfd02/froh-05-1453665-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/9cf23db35a03/froh-05-1453665-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/868c/11480054/f694190aa317/froh-05-1453665-g008.jpg

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