RESUMO
OBJECTIVES: To assess whether it is possible to measure tooth vitality using magnetic resonance imaging (MRI). METHODS: Signal intensity measurements were conducted using T(1) and T(2) sequences at the region of interest in 211 teeth (35 patients). RESULTS: Clinical findings showed that 17.3% of the teeth were avital, whereas 82.7% were found to be vital. Neither the T(2) sequence nor the non-contrast-enhanced T(1) sequence showed significant differences between vital and avital teeth. However, the contrast-enhanced sequence and, in particular, a comparison of signal intensities between the non-contrast-enhanced T(1) sequence and the contrast-enhanced sequence showed a significant difference between vital and avital teeth. CONCLUSION: Contrast-enhanced MRI enables us to draw conclusions on pulpal perfusion in vivo.
