Results 21 to 30 of about 1,552,406 (296)

Cell death and degeneration in the symbiotic dinoflagellates of the coral Stylophora pistillata during bleaching [PDF]

, 2004
Rising sea temperatures are increasing the incidences of mass coral bleaching (the dissociation of the coral–algal symbiosis) and coral mortality. In this study, the effects of bleaching (induced by elevated light and temperature) on the condition of ...
Berges , John A., Berges, J. A., Jones, R. J., Franklin, D. J., Jones, R.J., Hoegh-Guldberg, O., Franklin, Daniel J.   +6 more
core   +1 more source

Coral bleaching responses in Sodwana Bay, South Africa [PDF]

, 2013
This study assessed the bleaching response (BR) of coral colonies within the central reef complex in Sodwana Bay, South Africa. Bleach surveys were conducted at 16 sites on 8 reefs over the period of 2007 to 2013. A total of 12 858 coral colonies from 30
Harikishun, Ameil
core   +1 more source

Ion release from a composite resin after exposure to different 10% carbamide peroxide bleaching agents

Journal of Applied Oral Science, 2012
OBJECTIVE: This in vitro study evaluated the influence of two 10% carbamide peroxide bleaching agents - a commercial product (Opalescence PF; Ultradent Products, Inc.) and a bleaching agent prepared in a compounding pharmacy - on the chemical degradation
Renata Plá Rizzolo Bueno, Paloma Salomone Viaro, Paulo Cícero Nascimento, Roselaine Terezinha Pozzobon   +3 more
doaj   +1 more source

The effect of two bleaching agents on the phosphate concentration of the enamel evaluated by Raman spectroscopy: An ex vivo study

Contemporary Clinical Dentistry, 2012
Aim : The aim of this ex vivo study was to evaluate the effect of in-office bleaching agents,-35% and 38% hydrogen peroxide containing bleaching agents, on the phosphate concentration of the enamel evaluated by Raman spectroscopy. Materials and Methods :
Sokkalingam Mothilal Venkatesan, Gopal Shankar Narayan, Anil Kumar Ramachandran, Rajamani Indira   +3 more
doaj   +1 more source

Assessment of a novel bleaching agent formula containing 35% hydrogen peroxide and titanium tetrafluoride: an in vitro study

Brazilian Oral Research, 2021
: This study developed experimental gels containing titanium tetrafluoride (TiF4) combined with commercial 35% hydrogen peroxide (HP), and evaluated bleaching efficacy and pH of the gels, and mineral content and morphology of enamel submitted to these ...
Rodrigo Barros Esteves Lins, Pedro Luiz Rosalen, Josy Goldoni Lazarini, Luís Roberto Marcondes Martins, Vanessa Cavalli   +4 more
doaj   +1 more source

Effect of temperature and bleaching agent on bleaching of liquid Cheddar whey [PDF]

Journal of Dairy Science, 2012
The use of whey protein as an ingredient in foods and beverages is increasing, and thus demand for colorless and mild-tasting whey protein is rising. Bleaching is commonly applied to fluid colored cheese whey to decrease color, and different temperatures and bleach concentrations are used. The objectives of this study were to compare the effects of hot
M A D, Listiyani, R E, Campbell, R E, Miracle, D M, Barbano, P D, Gerard, M A, Drake   +5 more
openaire   +2 more sources

Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness

Brazilian Journal of Oral Sciences, 2015
The aim of this in vitro study was to examine the effect of four commercial hydrogen-peroxide-based home bleaching agents on enamel microhardness. Fifteen human molars conserved in water for no more than 3 months were sectioned mesio-distally. The buccal
Isana Álvares Ferreira, Guilherme Carpena LopeS, Luiz Clovis Cardoso Vieira, Élito Araujo   +3 more
doaj   +1 more source

Effect of bleaching treatments on the adhesion of orthodontic brackets: a systematic review

BMC Oral Health, 2023
Background Nowadays bleaching procedures have gained popularity in orthodontic patients. Peroxide and Carbamide acids are the common agents which are used in in-office and at home bleaching techniques. Consequently, the Bonding adhesion to the enamel can
Michela Boccuzzi, Alessandro Nota, Saverio Cosola, Giada De Simone, Rosa Iozzo, Laura Pittari, Myoung Hwan Hwang, Floriana Bosco, Elisabetta Polizzi, Simona Tecco   +9 more
doaj   +1 more source

Remineralization potential of a carbamide bleaching agent [PDF]

SANAMED, 2016
Background: Bleaching has gradually became a popular procedure for people searching for aesthetic improvement. The aim of this in vitro study was to investigate the effect of bleaching with 45% carbamide peroxide on the level of mineralization of enamel, using laser fluorescence.
Marinova-Takorova Borislavova Mirela, Anastasova Radostina, Panov Vladimir   +2 more
openaire   +2 more sources

Depigmenting and bleaching agents: coping with hyperpigmentation

Clinics in Dermatology, 2001
Since the introduction of hydroquinone as a skinlightening agent in 1961, several products with bleaching properties have been used for the treatment of pigmentary disorders of the skin.1 The most important medical indications for the use of these agents are melasma and postinflammatory hyperpigmentation, although they have also been used as ...
Katsambas, AD, Stratigos, AJ
openaire   +3 more sources