نتایج جستجو برای: activated virgin bleaching earth avbe

تعداد نتایج: 327428  

2014
Songdou Zhang Xiaoming Liu Bin Zhu Xinming Yin Mengfang Du Qisheng Song Shiheng An Olle Terenius

BACKGROUND Mating decreases female receptivity and terminates sex pheromone production in moths. Although significant progress has been made in elucidating the mating-regulated inactivation of pheromone biosynthesis-activating neuropeptide (PBAN) secretion, little is known about the mating induced gene expression profiles in pheromone glands (PGs). In this study, the associated genes involved i...

2017
Ana-Cristina Pimenta-Dutra Rodrigo-de Castro Albuquerque Luís-Fernando-dos Santos-Alves Morgan Geraldo-Magela Pereira Eduardo Nunes Martinho-Campolina-Rebello Horta Frank-Ferreira Silveira

BACKGROUND This study aimed to evaluate changes in the enamel surface of bovine teeth after whitening with exogenous bleaching agents: 10% carbamide peroxide (group 1), 16% carbamide peroxide (group 2) and 35% hydrogen peroxide activated by a light-emitting diode (LED) (group 3). The evaluations were performed by scanning electron microscopy (SEM). MATERIAL AND METHODS Ninety bovine teeth wer...

Journal: :Journal of dentistry 2006
Andrew Joiner

OBJECTIVES To review current knowledge of tooth whitening with respect to external bleaching methods. DATA The scope is the external bleaching of vital teeth and focuses on mechanisms; in vivo and in vitro measurement methods, and factors influencing the efficacy of the whitening process. SOURCES "Medline" and "ISI Web of Science" databases from 1966 and 1974, respectively were searched ele...

Journal: :Bulletin of Chemical Reaction Engineering & Catalysis 2011

Journal: :Pakistan Journal of Medical and Health Sciences 2022

Imitation of smile aesthetics and analysis, is an initial step for dental bleaching, hence it significant that the dentist/dental hygienist identifies how to analyze root causes color change specify whitening before suggesting suitable procedure. With high-tech advancement, bleaching techniques have arose assist its use provide comfort, safety reduction in time, performance technique. The conse...

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