基于锥束计算机断层的下颌支区微型种植体植入的最佳参数评估

IF 1.8 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

International Orthodontics Pub Date : 2025-04-25 DOI:10.1016/j.ortho.2025.101005

Qi Fan, Shangyou Wen, Xuechun Yuan, Xian He, Fan Jian, Yan Wang, Wenli Lai, Hu Long

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引用次数: 0

摘要

目的探讨下颌支微型种植体的最佳植入参数。材料与方法对50名受试者的CBCT数据进行测量，覆盖5个平面（OP2、OP4、OP6、OP8和OP10），每个平面有6个位点（Site0、Site2、Site4、Site6、Site8和Site10），每个位点有5个插入角度（30°、60°、90°、120°和150°）。数据包括骨深度、骨皮质厚度、根管距离和磨牙干涉的概率。结果下颌支的骨容量足以放置微型种植体。在适当的高度、位置和角度种植微型种植体，可避免与下颌神经管接触和干扰上颌磨牙。结论牙合平面上方4 ~ 8mm为合适的植牙高度。合适的植入位置为外斜脊内侧4 ~ 8mm。以下颌支平台前表面为夹角120 ~ 150度为宜。

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Evaluation of optimal parameters for the insertion of mini-implants at the mandibular ramus region based on cone-beam computed tomography

Objective

To determine the optimal parameters for mini-implant placement in the mandibular ramus.

Material and methods

Measurements were conducted on CBCT data from 50 subjects, covering five planes (OP2, OP4, OP6, OP8 and OP10), each with six sites (Site0, Site2, Site4, Site6, Site8 and Site10), and each site with five insertion angles (30°, 60°, 90°, 120°, and 150°). The data included measurements of bone depth, cortical bone thickness, canal distance, and the probability of molar interference.

Results

The bone volume of the mandibular ramus is sufficient for placing orthodontic mini-implants. When mini-implants were implanted at appropriate heights, sites, and angles, contact with the mandibular nerve canal and interference with maxillary molars can be avoided.

Conclusions

Suitable insertion height was 4–8 mm above the occlusal plane. Suitable insertion site was 4–8 mm medial to the external oblique ridge. Suitable insertion angle was 120–150 degrees with the anterior surface of the mandibular ramus platform.

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来源期刊

International Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.50

自引率

13.30%

发文量

审稿时长

26 days

期刊介绍： Une revue de référence dans le domaine de orthodontie et des disciplines frontières Your reference in dentofacial orthopedics International Orthodontics adresse aux orthodontistes, aux dentistes, aux stomatologistes, aux chirurgiens maxillo-faciaux et aux plasticiens de la face, ainsi quà leurs assistant(e)s. International Orthodontics is addressed to orthodontists, dentists, stomatologists, maxillofacial surgeons and facial plastic surgeons, as well as their assistants.