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MRI Found to be More Accurate at Detecting Periodontal Structures Than MDCT or CBCT PDF Print Email
Wednesday, 03 August 2011 09:24

Periodontics news The findings of a recent study to be published in European Radiology, 2011, and abstracted in PubMed prior to print (http://www.ncbi.nlm.nih.gov/pubmed/21805369), authors C Gaudino and colleagues from the Department of Neuroradiology, Heidelberg, Germany, suggest that MRI may be much better at visualizing periodontal dental structures than multidetector computed tomography (MDCT) or CBCT.

In this study burr holes were drilled into the mandibles of four porcine mandibles and were then examined by 3T-MRI, MDCT, and CBCT.  Two observers independently reviewed the imaging series for the quality of dental and periodontal structures.

All three machines accurately imaged tooth root, pulpal chambers and dentinal structures. But the periodontal space and the cortical-trabecular bone was observed better by MRI. MRI imaging was also much better at defining the lamina dura which was undetectable with the MDCT and only partially visible with CBCT. Differences between the three imaging strategies for the variables of interest were significant.

The authors conclude that MRI is a feasible approach to visualizing teeth and the periodontal anatomy and that MRI is better at defining the periodontal structures than CBCT or MDCT.