Artifacts in magnetic resonance imaging of the head and neck: Unwanted effects caused by implant-supported restorations fabricated with different alloys.
Implant-supported restorations may cause artifacts in magnetic resonance imaging (MRI) of the head and neck area. However, the effect of different alloys remains unclear. The purpose of this in vitro study was to assess artifacts in head and neck MRI caused by implant-supported restorations with dif...
| Publicado en: | Journal of Prosthetic Dentistry Vol. 133; no. 6; pp. 1574 - 1580 |
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| Autores principales: | , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Jun2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=185749804&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 185749804 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00223913 1ZB jtl: Journal of Prosthetic Dentistry issn: 00223913 maglogo: N pubinfo: dt: Jun2025 vid: 133 iid: 6 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 185749804 185749804 185749804 10.1016/j.prosdent.2023.08.018 185749804 ppf: 1574 ppct: 6 formats: tig: atl: Artifacts in magnetic resonance imaging of the head and neck: Unwanted effects caused by implant-supported restorations fabricated with different alloys. aug: au: Bohner, Lauren Dirksen, Dieter Hanisch, Marcel Sesma, Newton Kleinheinz, Johannes Meier, Norbert affil: Research Associate, Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, Muenster, Germany sug: subj: Artifacts Magnetic Resonance Imaging Head Dental Implantation Mandible Radiography Dental Prosthesis, Implant-Supported Dental Alloys Dental Materials Human In Vitro Studies Titanium Cobalt Chromium Compounds Bicuspid Descriptive Statistics Kruskal-Wallis Test Spearman's Rank Correlation Coefficient ab: Implant-supported restorations may cause artifacts in magnetic resonance imaging (MRI) of the head and neck area. However, the effect of different alloys remains unclear. The purpose of this in vitro study was to assess artifacts in head and neck MRI caused by implant-supported restorations with different alloys. Three dry mandibles were prepared to receive bilateral dental implants at the second premolar and second molar sites. Different alloy combinations were evaluated: titanium implants+cobalt chromium restorations; titanium-zirconium implants+cobalt chromium restorations; and zirconia implants+ceramic restorations. Specimens were imaged by using a 3-Tesla magnetic resonance scanner system (Achieva 3.0T TX; Philips GmbH) with a turbo-spin-echo sequence. Scan protocols were adjusted to optimize metal artifact reduction and shorten scan time. Artifact volumes were assessed and statistically analyzed by using the Kruskal-Wallis and Spearman tests (α=.05). A statistically significant difference was found among artifact volume caused by different materials (P =.002). The presence of titanium alloy was correlated with the artifact volume (r=−.87). Artifacts were greater for titanium and fewer for titanium-zirconium alloys, whereas zirconia implants found only minimal artifacts. The dimension of artifacts produced by implant-supported restorations varied according to the material. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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