TY - JOUR A2 - Scribante, Andrea AU - Baia, Juliana C. P. AU - Oliveira, Roberta P. AU - Ribeiro, Mara E. S. AU - Lima, Rafael R. AU - Loretto, Sandro C. AU - Silva e Souza Junior, Mário H. PY - 2020 DA - 2020/05/14 TI - Influence of Prolonged Dental Bleaching on the Adhesive Bond Strength to Enamel Surfaces SP - 2609359 VL - 2020 AB - The objective of this in vitro study was to assess the influence of prolonged bleaching pre- and postrestoration on the bond strength (microshear) to enamel using 4% hydrogen peroxide (PH4). In the postrestorative bleached specimens evaluation, the composite cylinders were assembled after bleaching, while in the prebleached specimens, the cylinders were assembled before. Therefore, in the postbleached specimens, 60 bovine teeth were randomly assigned as follows: G1: control; G2: 14 days bleaching before bond strength (BS) testing; G3: 21 days; and G4: 28 days. In prebleached specimens, 180 bovine teeth were randomly assigned as follows: G1: control; G5: 14 days bleaching, storage in artificial saliva (AS) for 24 h before BS testing; G6: 14 days beaching, AS storage for 7 days before BS testing; G7: 21 days bleaching, AS storage for 24  h before BS testing; G8: 21 days bleaching, AS storage for 7 days before BS testing; G9: 28 days bleaching, AS storage for 24 hours before BS testing; and G10 : 28 days bleaching, AS storage for 7 days before BS testing. The results were submitted to ANOVA one-way (postrestoration bleaching) and two-way (prerestoration bleaching) and Tukey’s post hoc test ( p ≤ 0.05 ）。在postrestoration漂白，次间差异无统计学差异。然而，当漂白组进行比较对照（G1）时，检测到表现差（ p ≤ 0.0001 ）。对于prerestoration漂白，所有实验组为从G1统计学差异（ p ≤ 0.05 ），除了G6（ p ≥ 0.01 ），以及用于G5和G6，统计学差异被发现（ p ≤ 0.01 ）。有G7和G8 G9 G10和之间之间并没有显著的差异，无论是作为存储时代（ p ≥ 0.05 ）。得出的结论而不管与PH4延长漂白降低漂白（后和prerestoration漂白）的时刻的抗粘附性。SN - 1687-8728 UR - https://doi.org/10.1155/2020/2609359 DO - 10.1155 /二百六十万九千三百五十九分之二千〇二十JF - 国际牙科杂志PB的 - Hindawi出版KW - ER -