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Sinescu C., Negrutiu M. L., Bradu A., Duma V. -F. *, and Podoleanu A. Gh. . Noninvasive quantitative evaluation of the dentin layer during dental procedures using Optical Coherence Tomography. Computational and Mathematical Methods in Medicine, p. 709076, 2015.

Abstract: A routine cavity preparation of a tooth may lead to opening the pulp chamber. The aim of the present study is to evaluate quantitatively, in real time - for the first time to the best of our knowledge - the drilled cavities during dental procedures. An established noninvasive biomedical imaging technique, Optical Coherence Tomography (OCT) is used. The main scope is to prevent accidental openings of the dental pulp chamber. Six teeth with dental cavities have been used in this ex vivo study. The real time assessment of the distances between the bottom of the drilled cavities and the top of the pulp chamber was performed using an own assembled OCT system. The evaluation of the remaining dentin thickness (RDT) allowed for the positioning of the drilling tools in the cavities in relation to the pulp horns. Estimations of the safe and of the critical RDT were made; in the case of the latter, the opening of the pulp chamber becomes unavoidable. Also, by following the fractures (i.e. the communications between the drilled cavity and the dental pulp chamber) that can occur when the extent of the decay is too large, the dentist can then decide upon the right therapy to follow, endodontic or conventional filling. The study demonstrates the usefulness of OCT imaging in guiding such evaluations during dental procedures.

Keywords: Dental pulp chamber, drilled cavities, dentin layer, remaining dentin thickness (RDT), noninvasive evaluation, biomedical imaging, optical coherence tomography, quantitative assessment


Posted by Virgil-Florin Duma


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