Effect of different adhesive systems and laser treatment on the shear bond strength of bleached enamel

Effect of Carbamide Peroxide Bleaching Gel Concentration on the Bond Strength of Dental Substrates and Resin Composite

“…34 The authors suggested some protocols to minimize the deleterious effects of bleaching agents on bond interface. Gurgan and others 35 observed that tooth-restoration bond strength values obtained with total-etching adhesives were higher than those obtained with self-etching types. Furthermore, dental surface pretreatment with low-density laser application promotes a better quality of adhesion to resin than to untreated substrate.…”

Effect of waiting time for placing resin composite restorations after bleaching on enamel bond strength

“…By contrast, other studies have found no significant difference in bond strength results between specimens restored immediately after bleaching or after waiting an interval period [13,16,17]. Hence, the purpose of the present study was to investigate whether the waiting time between placement of a resin composite restoration and the end of the bleaching procedure has an influence on the enamel bond strength.…”

“…The research question of this study is still questionable in the literature, since while some studies demonstrate that adhesive procedures should not be performed immediately or even after a few days or weeks after bleaching [10][11][12][13][14][15]23], other studies state that there is no need to wait a specific time interval to proceed with the restorative treatment [13,16,17]. These divergent results may perhaps be material-dependent, that is, the bonding process to bleached teeth depends on the type of whitening agent used [13,24], as well as on the type of adhesive systems and/or restorative materials applied [25].…”

Particularités du collage aux dents qui ont subi un éclaircissement

“…Gurgan et coll. (2009) ont montré que l'éclaircisse-ment vital avec le peroxyde de carbamide à 16 % et à 30 % entraîne une diminution de la résistance au cisaillement de la résine composite nano-hybride collée à l'émail et à la dentine sans qu'il y ait une différence significative entre les deux concentrations (p > 0.05) [2].…”

“…Il inhibe partiellement la polymérisation de la résine et réduit son infiltration dans les tissus dentaires mordancés [2,4,10,11,12,13]. Varia Aguir N., Jemâa M, Jalouli E., Khattech MB., Bhouri L. [21,23,26,27].…”