Dentistry Applications of Fiber Bragg Gratings: Irradiation Protocols for Bulk Fill Flow Dental Composites

Dentistry Applications of Fiber Bragg Gratings: Irradiation Protocols for Bulk Fill Flow Dental Composites

This study evaluates the polymerization shrinkage of a bulk fill flow composite photoactivated by continuous or ramped irradiation. Sample teeth were prepared with Class I occlusal cavity. The fiber Bragg grating sensors are placed along bucco-lingual and mesio-distal directions for measuring the sh...

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Bibliographic Details
Published in:Journal of lightwave technology Vol. 37; no. 18; pp. 4881 - 4887
Main Authors: Franco, Ana Paula Gebert de Oliveira, Costa, Manoella Maria Machado, Karam, Leandro Zen, Gomes, Osnara Maria Mongruel, Kalinowski, Hypolito Jose
Format: Journal Article
Language:English
Published: New York IEEE 15-09-2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Bragg gratings
Bulk polymerization
Dental materials
Dentistry
fiber Bragg gratings
fiber optics sensors
Irradiation
photosensitivity
Polymerization
Polymers
Protocols
Radiation effects
Sensors
Shrinkage
Teeth
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Description
Summary:This study evaluates the polymerization shrinkage of a bulk fill flow composite photoactivated by continuous or ramped irradiation. Sample teeth were prepared with Class I occlusal cavity. The fiber Bragg grating sensors are placed along bucco-lingual and mesio-distal directions for measuring the shrinkage and temperature. The results reveal that ramp irradiation protocol showed a slower evolution of shrinkage polymerization curve, but the final values of shrinkage for continuous and ramp protocols are not significantly different. The ramp irradiation protocol showed higher temperature changes than that of the continuous irradiation procedure.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2019.2926699