CORINA MARCAUTEANU, MEDA - LAVINIA NEGRUTIU, LAVINIA ARDELEAN, LAURA  CRISTINA RUSU,  ADRIAN GH. PODOLEANU<br>Evaluation of the Prognosis of Compomer Class V Restorations through en face Optical Coherence Tomography

CORINA MARCAUTEANU, MEDA - LAVINIA NEGRUTIU, LAVINIA ARDELEAN, LAURA CRISTINA RUSU, ADRIAN GH. PODOLEANU
Evaluation of the Prognosis of Compomer Class V Restorations through en face Optical Coherence Tomography

Abstract:

Compomer class V restoration is the treatment of choice in noncarious cervical lesions. Unfortunately, these lesions differ in terms of dentine adhesion quality. Abfractions are characterized by sclerotic dentine, which makes bonding of composite restorations very difficult. We propose the evaluation of abfractions by means of en face optical coherence tomography (eFOCT), before the placement of restorations. The dental samples were investigated using an eFOCT system operating at 1300 nm in B-scan and C-scan mode. The eFOCT images obtained from the teeth with buccal abfractions visualized cracks in the underlying dentine, which reached the tooth surface. The µCT and histological images confirmed the microstructural defects identified on eFOCT images. The time - domain OCT system we used was not able to visualize the layer of sclerotic dentine on the surface of buccal abfractions. In conclusion, eFOCT is a promising noninvasive imaging method for the detection of an overload aetiology in buccal abfractions. The compomer class V restorations will have a poor prognosis if they are placed before or without an occlusal equilibration. Keywords: class V restorations, sclerotic dentine, biotechnology, en face optical coherence tomography

Issue: 2012, Volume 63, Issue 5

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