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2 March 2018 Evaluation of marginal gap of lithium disilicate glass ceramic crowns with optical coherence tomography
Wenhao Li, Jingming Liu, Zhenting Zhang
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Journal of Biomedical Optics, Vol. 23, Issue 3, 036001 (March 2018). https://doi.org/10.1117/1.JBO.23.3.036001
Abstract
Marginal gap (MG) was the most important factor to evaluate the success of crowns. The study was to assess the MG of lithium disilicate glass ceramic crowns with spectral domain optical coherence tomography (OCT) and stereomicroscopy in vitro, and to provide evidence to measure the MG with OCT. Consistency was observed between OCT and stereomicroscopy to measure the MG after cementation. There was no significant difference between the MG of lithium disilicate glass ceramic crowns using OCT and stereomicroscopy (OCT 59.55  ±  7.22  μm, stereomicroscope 59.48  ±  6.53  μm, P  =  0.736) after cementation. OCT was a noninvasive diagnostic technique to measure the MG of lithium disilicate glass ceramic crowns.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) 1083-3668/2018/$25.00 © 2018 SPIE
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Wenhao Li, Jingming Liu, and Zhenting Zhang "Evaluation of marginal gap of lithium disilicate glass ceramic crowns with optical coherence tomography," Journal of Biomedical Optics 23(3), 036001 (2 March 2018). https://doi.org/10.1117/1.JBO.23.3.036001
Received: 18 July 2017; Accepted: 7 February 2018; Published: 2 March 2018
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KEYWORDS
Optical coherence tomography
Magnesium
Ceramics
Lithium
Glasses
Teeth
Cements
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