Effects of Bleaching Agents on Human Enamel Light Reflectance
نویسندگان
چکیده
منابع مشابه
Light-activated bleaching: effects on surface mineral change on enamel.
AIM This study evaluated the in vitro effect of 35% hydrogen peroxide (HP) on surface enamel change when activated with different light curing units (LCUs). MATERIALS AND METHODS Enamel blocks (4 × 4 × 2 mm) were obtained from bovine incisors. The initial microhardness of the enamel was determined for each specimen. After this enamel blocks were randomly divided into four groups (n = 10) and ...
متن کاملEffect of fluoride containing bleaching agents on enamel surface properties.
OBJECTIVES To evaluate the effects of fluoridated bleaching agents and post-bleaching fluoridation treatment on the whitening efficiency and microhardness of bovine enamel. METHODS Twenty five freshly extracted bovine incisors were cut into halves, embedded and then divided into the following five groups: Group 1, untreated controls; Group 2, treatment with 10% carbamide peroxide (CP) bleachi...
متن کاملThe Effects of Tooth Bleaching Agents on Microhardness of Enamel in situ
The demand for conservative esthetic dentistry has dramatically grown and so has the rapid development of new non-restorative treatments for discolored teeth. Nightguard vital bleaching has become one of the most frequently used treatment modality for improving the esthetic appearance of teeth, primarily because of its relative ease of application, the safety of 10% carbamide peroxide bleaching...
متن کاملThe effects of seven carbamide peroxide bleaching agents on enamel microhardness over time.
BACKGROUND Different concentrations of carbamide peroxide (10 to 22 percent) have been used successfully as bleaching agents, but the adverse effects on enamel microhardness at different times are unknown. METHODS The authors analyzed seven bleaching agents and a placebo. The agents were applied on the surface of human dental fragments for eight hours per day for 42 days and stored in vials c...
متن کاملEffects of KTP Laser Bleaching on Traumatized Tooth Enamel
BACKGROUND Bleaching of traumatized discolored teeth is considered an important issue in esthetic dentistry. Various methods have been introduced for bleaching, some of which may have adverse effects on soft or hard tissues of the tooth. OBJECTIVES The objective of the study was to evaluate the effects of KTP laser bleaching on enamel of traumatized teeth. MATERIALS AND METHODS A square of ...
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ژورنال
عنوان ژورنال: Operative Dentistry
سال: 2010
ISSN: 1559-2863,0361-7734
DOI: 10.2341/09-078-l