In vivo Evaluation of Enamel Dental Restoration Interface by Optical Coherence Tomography

Cláudia C. B. O. Mota; Hannah U. K. S. Kashyap; Bernardo B. C. Kyotoku; Anderson S. L. Gomes

Cláudia C. B. O. Mota Graduate Program in Dentistry, Universidade Federal de Pernambuco, Cidade Universitária 50670-901, Recife, PE, Brazil
Hannah U. K. S. Kashyap Photonova Inc, 110 Elm Crescent, Baie D'Urfé (QC) H9X 2P6, Canada & Department of Physics. Universidade Federal de Pernambuco, Cidade Universitária 50670-901, Recife, PE, Brazil
Bernardo B. C. Kyotoku Department of Physics. Universidade Federal de Pernambuco, Cidade Universitária 50670-901, Recife, PE, Brazil
Anderson S. L. Gomes Graduate Program in Dentistry, Universidade Federal de Pernambuco, Cidade Universitária 50670-901, Recife, PE, Brazil & Department of Physics. Universidade Federal de Pernambuco, Cidade Universitária 50670-901, Recife, PE, Brazil

Abstract

In this work, we report in vivo application of Optical Coherence Tomography (OCT) to assess dental restorations in humans. After approval by the Ethical Committee in Humans Research of the Universidade Federal de Pernambuco, thirty patients with resin composite restorations in anterior teeth were selected. The patients were clinically evaluated, and OCT was performed. Images were obtained using OCT operating in the spectral domain, with an 840 nm superluminescent diode light source (spectral width of 50 nm, fiber output power 25mW and a measured spatial resolution of 10 µm). The image acquisition time was less than one second. The results were analyzed with respect to the integrity and marginal adaptation of the restoration. Using appropriate software, the lesioned region can be exactly located and a new restoration procedure can be carried out. We have shown that OCT is more than adequate in clinical practice to assess dental restorations.