Treatment after bleaching for optimal bonding
نویسنده
چکیده
Regardless of bleaching regimes, the bond strength of composite resin or resin cement is reduced when bonding procedure is performed immediately after whitening. It is believed that the polymerization via free-radical mechanism is impeded by nascent oxygen remnant and peroxide in the bleached dental hard tissue. Because sodium hydroxide is used as a buffering agent to control the decreased pH, it does not guarantee optimal bonding. To handle compromised bond strength of pre-bleached dental hard tissue, use antioxidant like sodium ascorbate. As a practical approach, place 10% sodium ascorbate on the bleached surface for 10 minutes with agitation and rinse it with water before bonding.
منابع مشابه
The effect of antioxidant agents on shear bond strength of composite and bleached enamel
The effect of antioxidant agents on shear bond strength of composite and bleached enamel Dr. M. Mohammadi Bassir * - Dr. MB. Rezvani * - Dr. M. Paryab ** *Assistant Professor of Operative Dentistry Dept., Faculty of Dentistry, Shahed University. **Resident of Pediatric Dentistry Dept., Faculty of Dentistry, Tehran University / Medical Sciences. Abstract Background and Aim: Several studies have ...
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