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Abstract #4507

In Vivo & In Vitro T2* Quantification of Carious Lesions by Ultra-Short Echo-Time (UTE) MRI

Anna-Katinka Bracher1, Axel Bornstedt1, Erich Hell2, Johannes Ulrici2, Volker Rasche1

1Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany; 2Sirona Dental Systems, Bensheim, Germany

The T2* value of dentin and caries lesions was assessed by ultra-short echo time (UTE) MRI. A significant difference between the mean T2* values in caries lesions and healthy dentin was observed. Significant changes in T2* occur even before the lesions become visible in conventional X-ray imaging. This indicates the potential of MRI for very early identification of dental demineralizations and initial caries lesions.