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Insight in the chemistry of laser-activated dental bleaching
Roeland Jozef Gentil De Moor1, Jeroen Verheyen2, Andrii Diachuk1
1Department of Restorative Dentistry and Endodontology, Ghent Dental Laser Centre, Ghent Dental Photonics Research Clustre, Dental School, Ghent University, Ghent University Hospital, De Pintelaan 185-P8, 9000 Ghent, Belgium.
Abstract:
The use of optical radiation for the activation of bleaching products has not yet been completely elucidated. Laser light is suggested to enhance the oxidizing effect of hydrogen peroxide. Different methods of enhancing hydrogen peroxide based bleaching are possible. They can be classified into six groups: alkaline pH environment, thermal enhancement and photothermal effect, photooxidation effect and direct photobleaching, photolysis effect and photodissociation, Fenton reaction and photocatalysis, and photodynamic effect.
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