The influence of preformed metal crowns versus zirconia crowns on the diagnostic quality of magnetic resonance images.

IF 2.3 Q2 DENTISTRY, ORAL SURGERY & MEDICINE European Archives of Paediatric Dentistry Pub Date : 2024-11-13 DOI:10.1007/s40368-024-00971-x

O Dalzell, P Haghighi, J Ho, T Rayner, L Vidarsson, G A Garisto

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Abstract

Purpose: The purpose of this study was to investigate and compare in vitro the influence of preformed metal crowns (PMC) versus zirconia crowns (ZC) on the extent of artifact formation and the diagnostic quality of magnetic resonance imaging (MRI).

Methods: Standard crown tooth preparations were performed on Typodont models. PMC and ZC were cemented on all primary molar teeth (n = 8) of the respective models. MRI scans were taken for the Typodont alone (control), PMC, and ZC, using a 3 T MRI machine and common MRI sequences. The diameter of image distortion was measured around the dental materials. Data was analyzed using a mixed model analysis.

Results: The average artifact size for PMC was 54.9 mm (range 19.6-110.7 mm) and 12.8 mm (range 5.5-20.7 mm) for ZC. The artifact size was associated with the MRI pulse sequence and dental material, with PMC showing larger artifact diameters than ZC for all MRI sequences (p < 0.001). The control had sensitive sequences for AxT2* and DWI sequences with MRI artifacts of 11.4 mm and 10.7 mm, respectively.

Conclusions: It is important that dentists are aware of the potential of dental materials to cause unfavourable MRI artifacts. When areas of the brain requiring MRI preclude the use of PMC, ZC may be considered as an alternative to extractions. Further clinical studies are required to evaluate the impact of dental materials on the image quality of MR scans in vivo.

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预制金属冠与氧化锆冠对磁共振图像诊断质量的影响。

目的：本研究的目的是在体外研究和比较预成金属冠（PMC）和氧化锆冠（ZC）对伪影形成程度和磁共振成像（MRI）诊断质量的影响：方法：在Typodont模型上进行标准牙冠牙体预备。在各自模型的所有基磨牙（n = 8）上粘接 PMC 和 ZC。使用 3 T 核磁共振成像仪和普通核磁共振成像序列对单独的 Typodont（对照组）、PMC 和 ZC 进行核磁共振成像扫描。测量了牙科材料周围的图像变形直径。采用混合模型分析法对数据进行分析：结果：PMC 的平均伪影尺寸为 54.9 毫米（范围为 19.6-110.7 毫米），ZC 的平均伪影尺寸为 12.8 毫米（范围为 5.5-20.7 毫米）。伪影大小与磁共振成像脉冲序列和牙科材料有关，在所有磁共振成像序列中，PMC的伪影直径都比ZC大（p 结论：PMC的伪影直径比ZC的大：牙科医生必须意识到牙科材料可能会造成不利的磁共振成像伪影。当需要磁共振成像的脑部区域无法使用 PMC 时，可以考虑使用 ZC 作为拔牙的替代方法。还需要进一步的临床研究来评估牙科材料对体内磁共振扫描图像质量的影响。

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

European Archives of Paediatric Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.40

自引率

9.10%

发文量

期刊介绍： The aim and scope of European Archives of Paediatric Dentistry (EAPD) is to promote research in all aspects of dentistry for children, including interceptive orthodontics and studies on children and young adults with special needs. The EAPD focuses on the publication and critical evaluation of clinical and basic science research related to children. The EAPD will consider clinical case series reports, followed by the relevant literature review, only where there are new and important findings of interest to Paediatric Dentistry and where details of techniques or treatment carried out and the success of such approaches are given.