Results 211 to 220 of about 1,591 (256)
Some of the next articles are maybe not open access.
Radicular peroxide penetration from carbamide peroxide gels during intracoronal bleaching
International Endodontic Journal, 2008AbstractAim To evaluate and compare radicular peroxide diffusion from different concentrations of carbamide peroxide bleaching gels.Methodology Fifty maxillary premolar teeth were separated into five groups (n = 10). Standardized endodontic access cavities were prepared in the occlusal surfaces, and the root canals were prepared using a step back ...
Ongun Mehmet Saka
exaly +3 more sources
Microcomputerised tomography evaluation of 10% carbamide peroxide applied to enamel
Journal of Dentistry, 2005There is still some controversy in the dental literature whether carbamide peroxide bleaching causes demineralization of teeth. One of the reasons for this controversy is that there is as yet no reliable, non-destructive in vitro method for assessing mineral loss in bleached teeth.
David J Wood
exaly +4 more sources
Preparation and characterization of calcium-shellac spheres as a carrier of carbamide peroxide
Journal of Microencapsulation, 2008This paper describes a novel approach to prepare and characterize calcium-shellac spheres as a carrier of a tooth whitening agent carbamide peroxide. Calcium-shellac spheres were prepared using an extrusion technique based on dropping aqueous ammonium shellac solution into calcium chloride solution.
Zhibing Zhang
exaly +3 more sources
Effects of carbamide peroxide on dental luting agents
Journal of Endodontics, 1992Vital bleaching of natural dentition using a 10% carbamide peroxide in solution may adversely effect restorative materials such as the luting agents. The purpose of this study is to examine surface structure and alterations of atomic weight percentages of elements in (a) zinc phosphate, (b) glass-ionomer, and (c) resin cements after contact with the ...
K L, Jefferson, R B, Zena, B, Giammara
openaire +2 more sources
Effect of carbamide peroxide and hydrogen peroxide on enamel surface: an in vitro study
Clinical Oral Investigations, 2010The aim of the study was to investigate changes in the micromorphologyl and microhardness of the enamel surface after bleaching with two different concentrations of hydrogen peroxide (HP) and carbamide peroxide (CP). Bovine enamel samples were embedded in resin blocks, and polished.
Abouassi, Thaer +2 more
openaire +3 more sources
Remineralization Potential of a Fluoridated Carbamide Peroxide Whitening Gel
Journal of Esthetic and Restorative Dentistry, 2006ABSTRACTPurpose: Little knowledge exists regarding the potential remineralizing benefits of adding fluoride to carbamide peroxide‐based whitening gels. The aim of this project was to evaluate whether a whitening system with fluoride will remineralize previously demineralized enamel.Materials and Methods: Twenty‐four extracted teeth were sectioned ...
Jason, Gladwell +2 more
openaire +2 more sources
Penetration of the pulp chamber by carbamide peroxide bleaching agents
Journal of Endodontics, 1992Hydrogen peroxide readily penetrates the pulp chamber of freshly extracted teeth. This study was undertaken to determine whether carbamide peroxide also penetrates the pulp chamber. Freshly extracted teeth were sectioned 2 to 3 mm apical to the cementoenamel junction and the coronal pulpal tissue was removed.
J S, Cooper, T J, Bokmeyer, W H, Bowles
openaire +2 more sources
Dental bleaching with carbamide peroxide
2021Os autores apresentam revisão bibliografia e situações clínicas envolvendo a técnica do clareamento com o emprego do perióxido de carbamida como agente clareador.
Machado, Eliana S. +1 more
openaire +1 more source
Effects of three concentrations of carbamide peroxide on the structure of enamel
Journal of Oral Rehabilitation, 2000Carbamide peroxide bleaching agents have raised important questions on their potential adverse effects on the structure of enamel. The purpose of this study was to examine the effects of three carbamide peroxide bleaching agents in different concentrations (10, 16 and 35%) on the structure of enamel.
U, Oltu, S, Gürgan
openaire +2 more sources
Antibacterial activity of 10% carbamide peroxide bleaching agents
Journal of Endodontics, 1996The antibacterial activity of three commercial 10% carbamide peroxide bleaching agents (Nite White, Karisma, and Opalescence) on Streptococcus mutans, Streptococcus mitis, Streptococcus sanguis, Lactobacillus casei, and Lactobacillus acidophilus was examined. Chlorhexidine (0.2%) was used as a positive control.
S, Gurgan, S, Bolay, R, Alaçam
openaire +2 more sources