<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Magnetic resonance imaging (MRI) can precisely capture the anatomy of the vocal tract. However, the crowns of teeth are not visible in standard MRI scans. In this study, a marker-based teeth alignment method is presented and evaluated. Ten patients undergoing orthognathic surgery were enrolled. Supraglottal airways were imaged preoperatively using structural MRI. MRI visible markers were developed, and they were attached to maxillary teeth and corresponding locations on the dental casts. Repeated measurements of intermarker distances in MRI and in a replica model was compared using linear regression analysis. Dental cast MRI and corresponding caliper measurements did not differ significantly. In contrast, the marker locations <italic>in vivo</italic> differed somewhat from the dental cast measurements likely due to marker placement inaccuracies. The markers were clearly visible in MRI and allowed for dental models to be aligned to head and neck MRI scans.</p></abstract>

Magnetic resonance imaging (MRI) can precisely capture the anatomy of the vocal tract. However, the crowns of teeth are not visible in standard MRI scans. In this study, a marker-based teeth alignment method is presented and evaluated. Ten patients undergoing orthognathic surgery were enrolled. Supraglottal airways were imaged preoperatively using structural MRI. MRI visible markers were developed, and they were attached to maxillary teeth and corresponding locations on the dental casts. Repeated measurements of intermarker distances in MRI and in a replica model was compared using linear regression analysis. Dental cast MRI and corresponding caliper measurements did not differ significantly. In contrast, the marker locations in vivo differed somewhat from the dental cast measurements likely due to marker placement inaccuracies. The markers were clearly visible in MRI and allowed for dental models to be aligned to head and neck MRI scans.

A Novel Marker Based Method to Teeth Alignment in MRI

Department of Oral and Maxillofacial Surgery

Department of Oral and Maxillofacial Diseases

Institute for Reconstructive Sciences in Medicine, Misericordia Hospital

Department of Communication Sciences and Disorders

Department of Mathematics and System Analysis

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"A Novel Marker Based Method to Teeth Alignment in MRI"}

Magnetic resonance imaging (MRI) can precisely capture the anatomy of the vocal tract. However, the crowns of teeth are not visible in standard MRI scans. In...

A Novel Marker Based Method to Teeth Alignment in MRI

Published Online: Apr 04, 2018

Page range: 79 - 85

Received: Nov 20, 2017

Accepted: Mar 21, 2018

DOI: https://doi.org/10.1515/msr-2018-0012

Keywords
Dental imaging, Magnetic resonance imaging, MRI markers, teeth superposition, vocal tract imaging

© 2018 Jean-Marc Luukinen et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A Novel Marker Based Method to Teeth Alignment in MRI

Published Online: Apr 04, 2018

Page range: 79 - 85

Received: Nov 20, 2017

Accepted: Mar 21, 2018

DOI: https://doi.org/10.1515/msr-2018-0012

KeywordsDental imaging, Magnetic resonance imaging, MRI markers, teeth superposition, vocal tract imaging

© 2018 Jean-Marc Luukinen et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Dental imaging, Magnetic resonance imaging, MRI markers, teeth superposition, vocal tract imaging