considerations and assumptions Scientifically, the following questions have not been accurately answered yet: 1. What determines tooth color, its shades and hues and its variations even in the same person? 2. Does tooth color result from the distribution of a pigment at variable concentrations in tooth structure? 3. Is color a consequence of the level of mineralization of tooth tissues, their t...

Discolouration of a permanent incisor may have a significant social impact on children and adolescents. Intervention should be minimally destructive of tooth tissue and should not compromise future restorative options. This paper reviews the technique of inside/outside bleaching, and proposes it as an efficient, effective and acceptable method for use in the compliant younger patient with an un...

The purposes of this study were twofold: (1) to examine the effects of bleaching on the bond strength of an adhesive to bovine tooth surfaces; and (2) to explore the effectiveness of an ascorbic acid application in preventing the deterioration of bonding ability due to bleaching. In the experimental groups, ascorbic acid was applied to the bleached bovine tooth surfaces. In the control groups, ...

Objective This randomized, controlled, double-blind clinical study evaluated the effect of calcium sodium phosphosilicate (NovaMin) and casein phosphopeptide-amorphous calcium phosphate with fluoride (CPP-ACPF) on the prevention of post-operative sensitivity and on the effects of clinical bleaching treatment. Material and Methods Sixty volunteers were selected according to inclusion and exclu...

Objective: To assess, with a systematic review (SR) meta-analysis, the occurrence of genotoxic effects on oral epithelium after exposure to tooth bleaching agents. Material and methods: This was performed according PRISMA protocols. identify relevant studies, search in following electronic databases: PubMed, Scopus, Embase, LILACS, Google Scholar. The research question "Can agents cause genotox...

Aesthetics are of utmost importance including tooth colour to the people these days. Dentists are called upon to respond to requests from patients who wish to enhance their smiles. In this review of the literature, various causes of tooth discoloration, bleaching of vital and non vital teeth and biological hazards are discussed.

AIM Tetracycline-stained tooth structure is difficult to bleach using nightguard tray methods. The possible benefits of in-office light-accelerated bleaching systems based on the photo-Fenton reaction are of interest as possible adjunctive treatments. This study was a proof of concept for possible benefits of this approach, using dentine slabs from human tooth roots stained in a reproducible ma...

The aim of this study was to evaluate the surface roughness, microhardness and morphology of human enamel exposed to six bleaching agents (at baseline and post-treatment). Human dental enamel samples were obtained from human third molars and randomly divided into seven groups (n = 11): control, Whiteness Perfect 10% carbamide peroxide (10% CP), Colgate Platinum 10% CP, Day White 2Z 7.5% hydroge...

Objectives To assess tooth crown's color after intracanal treatment with triple antibiotic paste (TAP) or calcium hydroxide (CH); cervical sealing with glass ionomer cement (GIC) or mineral trioxide aggregate (MTA); and bleaching with carbamide peroxide. Material and Methods After pulp removal and color spectrophotometer measurement, 50 bovine incisors were divided into 4 experimental groups ...