Three-dimensional visualization of teeth by magnetic resonance imaging during speech

Ventura, Sandra; Freitas, Diamantino; Ramos, Isabel; Tavares, João Manuel R. S.

doi:10.1201/b15986-4

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Pure water [15] and blueberry juice [12], [16], [20] have been used as a contrast medium to cover the dentition completely. Clinical applicability is limited by an elevated aspiration risk which can be minimized by using paired plate containers [10], thermoplastic elastomer mouthpiece [13], retainer filled with ferric ammonium citrate jelly [14], or molded silicone mouthpiece coated with petroleum jelly [17]. However, hypersensitivity to a contrast medium may be a restricting factor.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Marker Based Method to Teeth Alignment in MRI

Luukinen

Aalto

Malinen

et al. 2018

Measurement Science Review

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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 locationsin vivodiffered 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.

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Section: Introductionmentioning

confidence: 99%

“…However, when the markers are attached to the facial skin, they are sensitive to the movement of the mimetic muscles. [17] Finally, customized MRI sequences have been proposed to simultaneously image hard and soft tissues, but those specialized sequences are not available on standard clinical scanners. [11], [19], [20], [22]…”

Section: Introductionmentioning

confidence: 99%