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International Journal of Esthetic Dentistry  (English Edition)
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Int J Esthet Dent 14 (2019), No. 3     2. Aug. 2019
Int J Esthet Dent 14 (2019), No. 3  (02.08.2019)

Page 310-323, PubMed:31312816


Speed bleaching: the importance of temporary filling with hermetic sealing
Traviglia, Alessandro / Re, Dino / De Micheli, Luca / Bianchi, Andrea Edoardo / Coraini, Cristian
The aim of this study was to demonstrate the influence of an adhesive temporary restoration on the effectiveness of the bleaching reaction, regardless of the concentration of the bleaching agent used. Every clinician involved in conservative dentistry understands the incompatibility between 'chemical bond' and 'oxygen.' This awareness often influences clinicians to decide on a temporary 'mechanical retention' filling that is unable to prevent the escape of oxygen ions, forcing the patient into more sessions and therefore raising the risk of complications. The scientific rationale behind the procedure described in this article is based on the bonding capacity of the coronal seal to maintain the rapid dissociation of the hydrogen peroxide exclusively within the pulp chamber, inducing an increase in the internal pressure and a consequent penetration of the oxygen-free radicals directly inside the dentinal tubules. In fact, avoiding the spontaneous dissipation of the oxygen-free radicals in the external environment may limit their effectiveness. This study aimed specifically to prove that it is possible to obtain a rapid bleaching reaction by observing a protocol based on the 'walking bleach' technique, specifically modified not so much by the typology of the mixture used but by fully exploiting the reaction yield of the hydrogen peroxide disproportionation. The results of the documented clinical cases presented here show the effectiveness of this method, which is achieved in a single session, therefore decreasing the possibility of the several operating phases that are necessary with the traditional procedure.