Regardless of the high success rate, patients commonly report the occurrence of tooth sensitivity during the in-office bleaching procedures. Recently, it has been demonstrated that using a customized tray (called sealed in-office bleaching technique) reduces peroxide penetration. The aim of this randomized clinical study was to evaluate tooth sensitivity and bleaching efficacy of sealed bleachi...

The objective of this study was to investigate the effects variety and plant environment on nutritional composition, phenolic contents antioxidant activities from commercial wheat cultivars grown in Pakistan. Chemical total were measured twenty-seven spring varieties for two cropping years. Preliminary assessment strength extracts carried out by evaluation (TPC), activity (AA) free radical scav...

Essential oils (EOs), the odorous and volatile products of a plant’s secondary metabolism, have wide applications in folk medicine, food flavoring preservation, fragrance industries. The aim this study was to analyze chemical composition EO from aerial parts (including inflorescences) wild Teucrium luteum subsp. flavovirens Tunisia. obtained by hydrodistillation air-dried plant material Cleveng...

After reading this article, the reader should be able to: • describe the process of nightguard vital bleaching and discuss indications and contraindications. • list the situations amenable to at-home whitening, including extended bleaching times for tetracyclinestained teeth. • explain how to treat side effects, such as tooth sensitivity during whitening. • discuss treatment options for a singl...

This article reviews the literature on the use of hydrogen peroxide in three professionally administered bleaching techniques from historical, technique, and safety viewpoints. Safety over time, absolute safety, and relative safety of nonvital bleaching, in-office vital bleaching, nightguard vital bleaching, and over-the-counter bleaching kits are compared. The advantages and disadvantages of d...

Until recently, subtropical Hawai'i escaped the major bleaching events that have devastated many tropical regions, but the continued increases in global long-term mean temperatures and the apparent ending of the Pacific Decadal Oscillation (PDO) cool phase have increased the risk of bleaching events. Climate models and observations predict that bleaching in Hawai'i will occur with increasing fr...

Many researchers agree that edible mushrooms have beneficial effects on human health. The aim of this study is to investigate the chemical composition and antioxidant activities methanol extracts obtained from Coprinus comatus, Hydnum repandum, Agaricus impudicus ve Sarcodon imbricatus collected Yuvacık-İzmit, Kastamonu, Uzungöl-Trabzon. Spectrophotometric analysis showed total phenolic (64.69 ...

This study was designed to evaluate, for the first time, antioxidant and antimicrobial activities of Nepeta × faassenii essential oil (NEO). Twenty-six compounds were identified by gas chromatography mass spectrometry analysis, which 4a alpha,7alpha,7a alpha-nepetalactone (34.12%), elemol (23.23%), spiro(5,6)dodecane (13.73%), 3,4 alpha-dihydro-4a alpha, 7 7a (7.93%) major compounds. The NEO ex...

BACKGROUND Tooth bleaching is a safe and conservative treatment modality to improve the esthetic appearance of discolored teeth. One of the problems with the use of bleaching agents is their possible effect on surface microhardness of resin-based materials. The present study was carried out to evaluate the effect of in-office and at-home bleaching on surface microhardness of giomer. MATERIAL ...

Limited information is available on the bleaching susceptibility of coral species that dominate high latitude reefs along the eastern seaboard of Australia. The main aims of this study were to: (i) monitor coral health and spatial patterns of coral bleaching response at the Solitary Islands Marine Park (SIMP) and Lord Howe Island Marine Park (LHIMP), to determine variability of bleaching suscep...