Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, Muenster, Germany.
Department of Prosthodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil.
Dentomaxillofac Radiol. 2022 Sep 1;51(6):20210450. doi: 10.1259/dmfr.20210450. Epub 2022 Mar 31.
The purpose of this systematic review was to search in literature in which severity unintended effects are caused by dental materials in magnetic resonance imaging (MRI), such as to evaluate whether these artifacts hamper the diagnosis in the head and neck region.
Clinical studies showing the severity of artifacts which dental materials are capable of causing in MRI of head and neck, such as their influence on diagnostic accuracy, were included in this review. The searches were conducted in four electronic databases (PubMed/Medline, Embase, Scopus and Web of Science), and a manual search was made in the reference lists of papers screened for full-text reading. Risk of bias was assessed using "Quality Assessment Tool for Diagnostic Accuracy Studies-2" (QUADAS-2). The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) was used to assess the quality of evidence.
From 151 studies selected for full-reading, 19 were considered eligible for this review. Artifacts caused by orthodontic appliances were well-documented, and stainless steel brackets were the materials most likely to cause artifacts in MR imaging of head and neck. The literature was scarce for dental implants and restorations. Diagnoses within the oral cavity, but also those of the brain and craniofacial structures, were affected.
Artifacts caused by orthodontic appliances may affect the diagnosis in oral cavity and craniofacial structures. Data regarding dental implants and prosthodontics restorations were inconclusive. The severity of artifacts in MRI and their influence on diagnosis is dependent on dental material features, location in the oral cavity, and magnetic resonance parameters.
本系统评价的目的是检索文献中牙科材料在磁共振成像（MRI）中引起的非预期严重不良影响，例如评估这些伪影是否会妨碍头颈部的诊断。
本研究纳入了显示牙科材料在头颈部 MRI 中产生的伪影严重程度的临床研究，例如其对诊断准确性的影响。在四个电子数据库（PubMed/Medline、Embase、Scopus 和 Web of Science）中进行了检索，并在手稿中对筛选出的全文阅读文献的参考文献进行了手动搜索。使用“诊断准确性研究的质量评估工具-2”（QUADAS-2）评估偏倚风险。使用“推荐评估、制定与评价分级”（GRADE）评估证据质量。
从 151 篇入选全文阅读的研究中，有 19 篇被认为符合本研究的纳入标准。正畸器械引起的伪影有详细的记录，不锈钢托槽是最有可能在头颈部 MRI 中引起伪影的材料。有关牙种植体和修复体的文献很少。口腔内的诊断受到影响，同时也影响到脑和颅面结构的诊断。
正畸器械引起的伪影可能会影响口腔和颅面结构的诊断。关于牙种植体和修复体的研究数据尚无定论。MRI 中的伪影严重程度及其对诊断的影响取决于牙科材料的特性、在口腔中的位置和磁共振参数。
