Katrine Mølgaard Johannsen1, João Marcus de Carvalho E Silva Fuglsig2, Brian Hansen3, Ann Wenzel2, Rubens Spin-Neto2. 1. Department of Dentistry and Oral Health, Oral Radiology, Aarhus University, Vennelyst Boulevard 9, 8000, Aarhus, Denmark. kmj@dent.au.dk. 2. Department of Dentistry and Oral Health, Oral Radiology, Aarhus University, Vennelyst Boulevard 9, 8000, Aarhus, Denmark. 3. Center of Functionally Integrative Neuroscience, Aarhus University, Aarhus, Denmark.
Abstract
OBJECTIVES: Dental materials, including orthodontic appliances and implants, are commonly mentioned as a possible source of artefacts in magnetic resonance imaging (MRI). The aim of the present study was to undertake a systematic review of the relevant literature on MR image artefacts due to dental materials, limited to orthodontic appliances and implant-supported dental prosthesis, on both technical and diagnostic levels. METHODS: The MEDLINE (PubMed) bibliographic database was searched up to September 2020. The search was limited to studies published in English, using the search string: (MRI or magnetic resonance) and (artefact or artifact) and (dental or ortho or implant or restoration or restorative). The studies were assessed independently by three reviewers, focusing on the following parameters: MRI sequences, tested materials, assessed parameters, efficacy level and outcome. RESULTS: The search strategy yielded 31 studies, which were included in this systematic review. These studies showed that metallic dental materials, commonly present in orthodontic appliances and implant-supported dental prosthesis led to diverse types/severities of artefacts in MR images. Fifteen studies were in vivo, based on human subjects. The studies differed substantially in terms of tested materials, assessed parameters, and outcome measurements. CONCLUSIONS: Metallic dental materials cause artefacts of diverse types and severities in MR images of the head and neck region. However, the diagnostic relevance of the investigated artefacts for the diverse MRI applications is yet to be studied.
OBJECTIVES: Dental materials, including orthodontic appliances and implants, are commonly mentioned as a possible source of artefacts in magnetic resonance imaging (MRI). The aim of the present study was to undertake a systematic review of the relevant literature on MR image artefacts due to dental materials, limited to orthodontic appliances and implant-supported dental prosthesis, on both technical and diagnostic levels. METHODS: The MEDLINE (PubMed) bibliographic database was searched up to September 2020. The search was limited to studies published in English, using the search string: (MRI or magnetic resonance) and (artefact or artifact) and (dental or ortho or implant or restoration or restorative). The studies were assessed independently by three reviewers, focusing on the following parameters: MRI sequences, tested materials, assessed parameters, efficacy level and outcome. RESULTS: The search strategy yielded 31 studies, which were included in this systematic review. These studies showed that metallic dental materials, commonly present in orthodontic appliances and implant-supported dental prosthesis led to diverse types/severities of artefacts in MR images. Fifteen studies were in vivo, based on human subjects. The studies differed substantially in terms of tested materials, assessed parameters, and outcome measurements. CONCLUSIONS: Metallic dental materials cause artefacts of diverse types and severities in MR images of the head and neck region. However, the diagnostic relevance of the investigated artefacts for the diverse MRI applications is yet to be studied.
Authors: Alexandre T Assaf; Tomislav A Zrnc; Chressen C Remus; Michael Schönfeld; Christian R Habermann; Björn Riecke; Reinhard E Friedrich; Jens Fiehler; Max Heiland; Jan Sedlacik Journal: J Craniomaxillofac Surg Date: 2014-04-13 Impact factor: 2.078