نتایج جستجو برای: bleaching agents

تعداد نتایج: 366401  

Journal: :The Journal of Contemporary Dental Practice 2014

2017
Negar Moghadam Amir Ardalan Abdollahi Hoda Aghabalayi Fakhim Zahra Borna

INTRODUCTION This study aimed at evaluating the sealing properties of calcium-enriched mixture (CEM) compared to mineral trioxide aggregate (MTA) as a cervical barriers in intra-coronal bleaching. METHODS AND MATERIALS In this in vitro study, endodontic treatment was performed on 60 extracted human incisors and canines without canal calcification, caries, restorations, resorption or cracks. T...

Journal: :Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 1986

2016
Zahra Khamverdi Parvin Khadem Aliraza Soltanian Maryam Azizi

OBJECTIVES A reduction in bond strength of composite to bleached enamel has been reported immediately after bleaching treatment. Application of some antioxidant agents may decrease the adverse effects of whitening agents on bond strength and enhance composite bond to enamel. This study aimed to assess the effect of green tea, sodium ascorbate, sage and grape seed extract on bond strength of com...

2012
Yao Chen Yongming Fan Mandla A. Tshabalala Nicole M. Stark Jianmin Gao Ruijie Liu

To investigate the optical properties of chemithermomechanical pulp (CTMP) from Eucalyptus camaldulensis, one group of samples of CTMP was aged by heating, and another group was first subjected to bleaching with different bleaching agents, and then aging by exposure to sunlight. Chromophores were analyzed using diffuse reflectance UV-Vis spectra (DRUV), and the brightness and color parameters (...

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