Aim: To determine if the artificial staining with black tea (BT) influences enamel microhardness before in-office bleaching and BT is necessary to evaluate efficacy of 35% hydrogen peroxide Methods: Enamel/dentin blocks were randomized into groups according protocol (n=5/group): (CO) control – maintained in saliva solution (AS); (BT4) immersed for 4 h; (BT24) 24 h. After protocols, all specimen...

This clinical study compared the efficacy of three different bleaching techniques with respect to the bleaching times required in order to achieve six grades of whitening in human teeth. Any side effects that were noted and the patients' acceptance of the method were recorded by a visual analog scale ranging from 0 to 10. Moreover, epoxy casts from the study teeth were analyzed by scanning elec...

Objective: To evaluate the in vitro effect of antioxidants on bond strength between composite resin and enamel subjected to bleaching agents. Methods: Nineteen sound human molars had their roots sectioned, while surfaces were flattened filled with produce specimens, which then divided into seven groups: G1 – unbleached without antioxidant (control); G2 36% carbamide peroxide; G3 peroxide 10% as...

UNLABELLED The purpose of the study was to compare two different commercial bleaching agents, Opalescence with Colgate Platinum, and 30% phosphoric acid used as aggressive agent on the morphology of human enamel. MATERIALS AND METHODS Ten freshly extracted, noncarious, human maxillary central incisors extracted for periodontal reasons were used in this study. The labial surface of the disinfe...

pulp tissues due to endodontic treatment may often lead to intrinsic staining. In such cases, cleaning procedures utilized to remove surface pigmentations are not effective and chemical bleaching is required to recover the original color. Nowadays, dental bleaching has been recognized as the most conservative treatment for discolored teeth.1, 2 In recent years, several products and techniques h...

introduction: bleaching process can affect surface roughness of enamel, which is a vital factor in esthetic and resistance of tooth. the aim of this study was to compare surface roughness of enamel in teeth bleached using diode and neodymium-doped yttrium aluminium garnet (nd: yag) lasers with those bleached using conventional method. methods: in this study, 75 anterior human teeth from upper a...

OBJECTIVE To evaluate the effect of home-use bleaching agent containing 16% Carbamide Peroxide (CP) and in-office bleaching agent containing 38% Hydrogen Peroxide (HP) on enamel micro-hardness. STUDY DESIGN An in vitroexperimental study. PLACE AND DURATION OF STUDY Department of Operative Dentistry and Science of Dental Materials at Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences,...

Background: Bleaching is the procedure of re-whitening teeth that have darkened to a shade near their natural hue. Due unfavorable impact chemical bleaching materials on enamel demineralization, quest for solutions same whitening effect while minimizing negative consequences encouraged. The punica granatum fruit one components can be employed. Purpose: This study aims analyze application white ...

The nature of tooth enamel is of inherent interest to dental professionals. The current-day clinical practice of dentistry involves the prevention of enamel demineralization, the promotion of enamel remineralization, the restoration of cavitated enamel where demineralization has become irreversible, the vital bleaching of dental enamel that has become discolored, and the diagnosis and treatment...

Bleaching has become the treatment of choice for most tooth discolorations. In-office bleaching and at-home are frequently performed vital techniques. Both these techniques proven to improve discoloration, but unwanted effects can also occur, such as sensitivity increased enamel surface roughness. Tooth is a common side effect procedures on dental hard tissue still matter controversy. This lite...