Results 11 to 20 of about 67,557 (234)

Reconstructing Four Centuries of Temperature-Induced Coral Bleaching on the Great Barrier Reef

Frontiers in Marine Science, 2018
Mass coral bleaching events during the last 20 years have caused major concern over the future of coral reefs worldwide. Despite damage to key ecosystem engineers, little is known about bleaching frequency prior to 1979 when regular modern systematic ...
Nicholas A. Kamenos, Sebastian J. Hennige   +1 more
doaj   +1 more source

Spectrophotometric assessment of tooth bleaching under orthodontic braquets bonded with different materials

Revista de Odontologia da UNESP, 2017
Introduction patients have been submitted to tooth bleaching during orthodontic treatment for aesthetic purposes or to anticipate the replacement of restorations after completion of the treatment.
Camila Maria Lima de CASTRO, Higor Catta Preta BORGES, Karoline Cardoso Ferro BARROS, Natanael Barbosa dos SANTOS, Larissa Silveira de Mendonça FRAGOSO   +4 more
doaj   +1 more source

The Effects of Home Bleaching and Laser Bleaching on Tooth Color Change: A Comprehensive Review [PDF]

Journal of Mashhad Dental School
Background: This review article aimed to evaluate and compare the color change outcomes of two tooth whitening methods, namely, home bleaching and laser bleaching, and to also assess their efficacy and safety.Methods and Materials: A comprehensive search
Marzieh Rohaninasab, Mohammad Alamdar
doaj   +1 more source

Study on Bleaching Technology of Cotton Fabric with Sodium Percarbonate

MATEC Web of Conferences, 2016
Bleach cotton fabric with sodium percarbonate solution. Analyse of the effect of the concentration of sodium percarbonate solution, bleaching time, bleaching temperature and the light radiation on the bleaching effect of fabric.The result shows that ...
Li Zhi, Wang Yanling, Wang Zhichao
doaj   +1 more source

Influence of Prolonged Dental Bleaching on the Adhesive Bond Strength to Enamel Surfaces

International Journal of Dentistry, 2020
The objective of this in vitro study was to assess the influence of prolonged bleaching pre- and postrestoration on the bond strength (microshear) to enamel using 4% hydrogen peroxide (PH4).
Juliana C. P. Baia, Roberta P. Oliveira, Mara E. S. Ribeiro, Rafael R. Lima, Sandro C. Loretto, Mário H. Silva e Souza Junior   +5 more
doaj   +1 more source

Do dental bleaching sessions prior to orthodontic treatment change the bond strength of esthetic brackets?

Dental Press Journal of Orthodontics, 2021
Objective: The aim of this experimental in vitro study was to evaluate whether dental bleaching performed before orthodontic treatment change the shear bond strength (SBS) of monocrystalline and polycrystalline esthetic brackets.
Samara Gasperoni PERCIANO, Diego Patrik Alves CARNEIRO, Patricia Rafaela dos SANTOS, Américo Bortolazzo CORRER, Silvia Amélia Scudeler VEDOVELLO, Heloísa Cristina VALDRIGHI   +5 more
doaj   +1 more source

Bleaching-driven reef community shifts drive pulses of increased reef sediment generation [PDF]

Royal Society Open Science, 2020
The ecological impacts of coral bleaching on reef communities are well documented, but resultant impacts upon reef-derived sediment supply are poorly quantified.
Chris T. Perry, Kyle M. Morgan, Ines D. Lange, Robert T. Yarlett   +3 more
doaj   +1 more source

Skin Bleaching Among African and Afro-Caribbean Women in New York City: Primary Findings from a P30 Pilot Study

Dermatology and Therapy, 2019
Introduction The application of skin bleaching products to inhibit melanogenesis is a common practice within the African diaspora. Despite the adverse health effects of skin bleaching, rigorous studies investigating skin bleaching behavior among these ...
Emma K. T. Benn, Richa Deshpande, Ogonnaya Dotson-Newman, Sharon Gordon, Marian Scott, Chitra Amarasiriwardena, Ikhlas A. Khan, Yan-Hong Wang, Andrew Alexis, Bridget Kaufman, Hector Moran, Chi Wen, Christopher A. D. Charles, Novie O. M. Younger, Nihal Mohamed, Bian Liu   +15 more
doaj   +1 more source

Detecting 2020 Coral Bleaching Event in the Northwest Hainan Island Using CoralTemp SST and Sentinel-2B MSI Imagery

Remote Sensing, 2021
In recent years, coral reef ecosystems have been affected by global climate change and human factors, resulting in frequent coral bleaching events. A severe coral bleaching event occurred in the northwest of Hainan Island, South China Sea, in 2020.
Bailu Liu, Lei Guan, Hong Chen
doaj   +1 more source

Clinical evaluation of color change and tooth sensitivity with in-office and home bleaching treatments

Indian Journal of Dental Research, 2018
Background: Among the number of vital bleaching techniques currently available to the clinicians, home bleaching and in-office bleaching are widely used in dental practice.
Athaluri Mounika, Jyothi Mandava, B Roopesh, Girish Karri   +3 more
doaj   +1 more source