Effect of bleaching agents containing fluoride or calcium on enamel microhardness, roughness and permeability

• Main Authors: Charles Alex Rauen (Author), Júlio Cezar Chidoski Filho (Author), Bruna Fortes Bittencour (Author), Giovana Mongruel Gomes (Author), João Carlos Gomes (Author), Osnara Maria Mongruel Gomes (Author)
• Format: Bog
• Udgivet: Universidade Estadual de Campinas, 2016-09-01T00:00:00Z.
• Fag: article
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Aim: To evaluate the effect of different in-office bleaching agents on the permeability, roughness and surface microhardness of human enamel. Methods: For evaluation of roughness and microhardness, 40 hemi-faces of 20 premolars were subjected to initial roughness (Ra parameter) and microhardness (VH...