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Effects of home bleaching agents on hybrid ceramics: mechanical properties and color change.
BMC Oral Health
January 2025
Department of Fixed Prosthodontics - Faculty of Dentistry, Ain Shams University, Organization of African Unity, St, El-Qobba Bridge, El Weili, Cairo Governorate, Egypt.
Background: Home bleaching is a promising option for addressing discolored teeth conservatively. However, its impact on the physical and mechanical properties of indirect restorations remains unknown. This study provides comparative insights into the material responses to aesthetic treatments by assessing the effects of home bleaching agents on two hybrid ceramics: VITA ENAMIC and Grandio Blocs.
View Article and Find Full Text PDFHigher spatial resolution is not always better: evaluating satellite-sensed sea surface temperature products for a west Pacific coral reef system.
Sci Rep
January 2025
School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK.
As marine heatwaves and mass coral bleaching events rise in frequency and severity, there is an increasing need for high-resolution satellite products that accurately predict reef thermal environments over large spatio-temporal scales. Deciding which global sea surface temperature (SST) dataset to use for research or management depends in part on the desired spatial resolution. Here, we evaluate two SST datasets - the lower-resolution CoralTemp v3.
View Article and Find Full Text PDFBackground: This single-blind, noninferiority trial evaluated whether 10% carbamide peroxide (CP) applied for 2 or 4 hours daily is noninferior to 8 hours.
Methods: A total of 120 healthy adults, with teeth shade A2 or darker, were randomly allocated to 3 groups (n = 40). All participants used 10% CP gel in a bleaching tray for 2, 4, and 8 hours daily for 14 days, with the option to extend treatment if they were dissatisfied.
Effect of glutathione on bond strength of composite resin to enamel following extracoronal bleaching.
J Conserv Dent Endod
November 2024
Department of Conservative Dentistry and Endodontics, Tagore Dental College and Hospital, Chennai, Tamil Nadu, India.
Background: Bleaching is a conservative treatment option to deliver esthetic smile makeover for discoloured tooth. Various concentration of bleaching agents can influence the bonding of the restoration to the tooth.
Aims And Objectives: The aim of the study was to determine the effect of glutathione on bond strength of composite resin to enamel following extra coronal bleaching at two different time intervals.
An in vitro evaluation of anti-oxidant properties of novel nano-composite material containing titanium oxide, zinc oxide and green tea extract.
Med J Malaysia
January 2025
Department of Mechanical engineering, IIT Madras.
Introduction: Green tea is a medicinal beverage extracted from the plant Camellia sinensis. Antioxidants that exist naturally can be extracted as pure compounds from their parent materials for nutraceutical and medicinal applications. The present study aims to assess the antioxidant activity of Zinc oxide-titanium dioxide nano-composites (ZnO-TiO2 NCs) containing green tea extract.
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