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Medicina Oral, Patología Oral y Cirugía Bucal (Internet)

versión On-line ISSN 1698-6946


BERGA CABALLERO, Amparo; FORNER NAVARRO, Leopoldo  y  AMENGUAL LORENZO, José. In vivo evaluation of the effects of 10% carbamide peroxide and 3.5% hydrogen peroxide on the enamel surface. Med. oral patol. oral cir.bucal (Internet) [online]. 2007, vol.12, n.5, pp.404-407. ISSN 1698-6946.

Objectives: Bleaching of vital teeth performed at home by the patient under the dentist’s supervision, using low-concentration peroxides and custom-fitted trays specifically designed for this purpose, is one of several options for this type of dental treatment, whether alone or in combination with another in-office bleaching technique. The objective of this study is to analyse the effect on the enamel surface of two bleaching products recommended for this technique. Materials & methods: Two bleaching products were used: VivaStyle (Vivadent), a 10% carbamide peroxide, and FKD (Kin), a 3.5% hydrogen peroxide. They were applied in trays to the anterior teeth of 20 patients (10 in each group). The application times were 2 and 3 hours a day respectively for 28-33 days. Replicas of the tooth surfaces before and after treatment were obtained. These were observed with a scanning electron microscope. Results: The images obtained showed that the tooth surfaces remained entire and the enamel surface structures remained normal. Conclusions: The results show that neither of the products affects the enamel surface: no post-operatory changes were observed.

Palabras clave : At-home tray vital bleaching; carbamide peroxide; hydrogen peroxide; enamel; scanning electron microscope.

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