Results 21 to 30 of about 148,501 (242)

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

open access: yesDental 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   +5 more
doaj   +1 more source

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

open access: yesDermatology 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   +15 more
doaj   +1 more source

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

open access: yesIndian 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   +3 more
doaj   +1 more source

Coral Bleaching Susceptibility Is Predictive of Subsequent Mortality Within but Not Between Coral Species

open access: yesFrontiers in Ecology and Evolution, 2020
Marine heat waves instigated by anthropogenic climate change are causing increasingly frequent and severe coral bleaching events that often lead to widespread coral mortality.
Shayle B. Matsuda   +9 more
doaj   +1 more source

The 27–year decline of coral cover on the Great Barrier Reef and its causes [PDF]

open access: yes, 2012
This study investigates the spatial and temporal dynamics of coral cover, identifies the main drivers of coral mortality, and quantifies the rates of potential recovery of the Great Barrier Reef.The world’s coral reefs are being degraded, and the need to
Glenn De'   +3 more
core   +3 more sources

Porites superfusa mortality and recovery from a bleaching event at Palmyra Atoll, USA. [PDF]

open access: yes, 2017
BackgroundThe demography of a coral colony is not a binary trajectory of life and death. Based on the flexibility afforded by colonial organization, most reef-building corals employ a variety of dynamic survival strategies, including growth and shrinkage.
Furby, Kathryn Anne   +2 more
core   +8 more sources

Bleaching of Wool with Sodium Borohydride [PDF]

open access: yesJournal of Engineered Fibers and Fabrics, 2009
An untreated wool fabric was bleached both with sodium borohydride (SBH) in the presence of sodium bisulphite (SBS) solution and with a commercial H2O2 bleaching method.
Duygu Yilmazer, MSc.   +1 more
doaj  

Borneo coral reefs subject to high sediment loads show evidence of resilience to various environmental stressors [PDF]

open access: yes, 2019
For reefs in South East Asia the synergistic effects of rapid land development, insufficient environmental policies and a lack of enforcement has led to poor water quality and compromised coral health from increased sediment and pollution.
Braoun, Christina   +4 more
core   +1 more source

Evaluating the Whitening and Microstructural Effects of a Novel Whitening Strip on Porcelain and Composite Dental Materials. [PDF]

open access: yes, 2017
AimsThe aim of this project was to evaluate the effects of 2 different whitening strips on color, microstructure and roughness of tea stained porcelain and composite surfaces.Methods54 porcelain and 72 composite chips served as samples for timed ...
Anbarani, Afarin   +5 more
core   +2 more sources

EFFECT OF İN-OFFİCE BLEACHİNG ON THE SURFACE ROUGHNESS OF DİFFERENT COMPOSİTE RESİNS

open access: yesCumhuriyet Dental Journal, 2022
Objective: The aim of this study is to investigate the effect of a high concentration hydrogen peroxide bleaching agent on the surface roughness of four different composite resins.
Ozden Ozel Bektas, Seher Kaya
doaj   +1 more source

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