Is the positioning guide mandatory for the virtual planning of orthognathic surgery? A randomized double-blind trial.

IF 2.2 3区医学 Q2 Dentistry

Journal of Stomatology Oral and Maxillofacial Surgery Pub Date : 2024-11-14 DOI:10.1016/j.jormas.2024.102150

Adalmir Gonzaga Dos Santos Queiroz, Claudio Roberto Pacheco Jodas, Shajadi Carlos Pardo Kaba, Rubens Gonçalves Teixeira

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引用次数: 0

Abstract

Objectives: The aim of this study is to verify the positioning of the condyles in computed tomography (CT) scans of skeletal Class II and Class III patients in virtual surgical planning before orthognathic surgery. The secondary aim is to determine whether occlusal devices are mandatory for performing a CT examination.

Materials and methods: In this retrospective randomized double-blind study, 42 CT scans were evaluated from patients who had undergone to orthognathic surgery at the University Hospital of the University of São Paulo. Male and female patients between the ages of 25 and 40 were included. The sample consisted of skeletal Class II and III patients. The CTs were randomly selected into centric relation (CR) and maximal intercuspal position (MI). Statistical analysis was performed with R Statistical Package and was considered significant in the case of p <0.0001.

Results: A total of 504 measurements were carried out in 42 patients. Three joint spaces on each side were used. No statistically significant difference between the inter- and intraobservers was found for CR and MI. Some scores were performed to avoid the risk of gender bias.

Conclusions: No statistically significant value was found between patients in CR and MI after mandibular manipulation. The use of a positioning guide to perform a CT scan prior to virtual planning is not absolutely necessary.

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正颌外科手术的虚拟规划是否必须使用定位指南？随机双盲试验。

研究目的本研究的目的是在正颌手术前的虚拟手术规划中，验证骨骼Ⅱ类和Ⅲ类患者计算机断层扫描（CT）中髁突的定位。次要目的是确定在进行 CT 检查时是否必须使用咬合装置：在这项回顾性随机双盲研究中，对圣保罗大学附属医院接受正颌外科手术的 42 名患者的 CT 扫描结果进行了评估。研究对象包括 25 至 40 岁的男女患者。样本包括骨骼二级和三级患者。CT被随机选取为中心关系（CR）和最大间隙位置（MI）。使用 R 统计软件包进行统计分析，以 p 为显著结果：共对 42 名患者进行了 504 次测量。每侧使用了三个关节间隙。在 CR 和 MI 方面，观察者之间和观察者内部的差异无统计学意义。为避免性别偏差风险，进行了一些评分：下颌关节操作后，CR 和 MI 患者之间没有发现明显的统计学价值。在虚拟规划前使用定位指南进行 CT 扫描并非绝对必要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Stomatology Oral and Maxillofacial Surgery Dentistry-Oral Surgery

CiteScore

2.20

自引率

9.10%

发文量

305

期刊介绍： J Stomatol Oral Maxillofac Surg publishes research papers and techniques - (guest) editorials, original articles, reviews, technical notes, case reports, images, letters to the editor, guidelines - dedicated to enhancing surgical expertise in all fields relevant to oral and maxillofacial surgery: from plastic and reconstructive surgery of the face, oral surgery and medicine, … to dentofacial and maxillofacial orthopedics. Original articles include clinical or laboratory investigations and clinical or equipment reports. Reviews include narrative reviews, systematic reviews and meta-analyses. All manuscripts submitted to the journal are subjected to peer review by international experts, and must: Be written in excellent English, clear and easy to understand, precise and concise; Bring new, interesting, valid information - and improve clinical care or guide future research; Be solely the work of the author(s) stated; Not have been previously published elsewhere and not be under consideration by another journal; Be in accordance with the journal''s Guide for Authors'' instructions: manuscripts that fail to comply with these rules may be returned to the authors without being reviewed. Under no circumstances does the journal guarantee publication before the editorial board makes its final decision. The journal is indexed in the main international databases and is accessible worldwide through the ScienceDirect and ClinicalKey Platforms.