Objective: This study aimed to evaluate the effect of whitening toothpastes and mouthrinses on the color stability of teeth bleached with 16% carbamide peroxide (CP) after immersion in coffee solution. Materials and methods: Specimens obtained from bovine incisors were bleached with 16% CP for 14 days. After bleaching, the specimens were stained in coffee solution for 24 h and randomly divided ...

CONTEXT The possibility of bleaching vital teeth with peroxide-based products considerably revolutionized esthetic dentistry. AIM The aim of this clinical study was to evaluate tooth color change and dental sensitivity after exposure to preloaded film containing a 10% hydrogen peroxide whitening system (Opalescence Trθswhite Supreme). MATERIALS AND METHODS A total of 13 volunteers, aged 18 ...

This study evaluated the degree of color change of teeth, the rebound effect and the sensitivities of teeth and gingiva associated with the use of an in-office bleaching agent followed by an at-home bleaching agent to lighten stained teeth in an in vivo study. Thirty-seven subjects who met the Inclusion/Exclusion criteria were divided into two cells. Twenty-five subjects received three 15-minut...

BACKGROUND The daily application time for 10 percent carbamide peroxide (CP) typically is between four and eight hours. However, to the authors' knowledge, no investigators in clinical studies have compared different application times; this is the aim of this study. METHODS The authors recruited 60 patients and categorized each of them into one of four groups. All participants used 10 percent...

Vital teeth tend to present color changes that compromise esthetics substantially. These discolorations can be extrinsic or intrinsic according to the location and the cause of the stain. Many dentists have indicated the treatment of intrinsic discolorations with bleaching agents. Thanks to innovations in bleaching agents, tooth whitening has become more and more popular among dental profession...

the growing demand for enhanced esthetic appearance has led to great developments in bleaching products. the exposure of hard tissues of the tooth to bleaching agents can affect the roughness of the enamel surface. the freshly bleached enamel surface exposed to various surface treatments such as fluoride and other remineralizing agents have been assessed in this study. the aim of this experimen...

OBJECTIVES This study evaluated the effectiveness of different home bleaching agents on color alteration and their influence on surface and subsurface microhardness of discolored bovine enamel. MATERIAL AND METHODS Forty-five fragments of bovine incisors were randomly allocated into 3 groups (n=15) according to the bleaching agent: 10% carbamide peroxide gel (CP10), 16% carbamide peroxide gel...

The increase in aesthetic demands has increased the use of ceramic dental restorations dentistry. Ceramic are bonded to tooth structure using adhesives. There is a lack standard guidelines terms post-bleaching time intervals and bond strengths restorations. Bleaching products have also been stated affect morphology enamel. Therefore, purpose this systematic review evaluate strength between enam...

مقدمه: علاقه به داشتن دندان های سفیدتر و تکنیک سفید کردن دندان باعث افزایش تقاضای عمومی نسبت به سفیدتر کردن دندان شده است. اصلاح رنگ با سفید کردن اغلب کمترین هزینه را دارد. در این ارتباط، منابع نوری مختلف استفاده می شود این منابع نوری باعث افزایش سرعت اثر مواد بلیچینگ در مطب مثل، هیدروژن پرواکساید، می شود. هنگامی که نور لیزر برای این منظور استفاده می شود، به طور معمول سبب ارتقای جذب نور لیزربه ...