Department of Prosthodontics, Faculty of Dentistry, Recep Tayyip Erdogan University.
Department of Prosthodontics, Faculty of Dentistry, Atatürk University.
Dent Mater J. 2022 Jul 30;41(4):511-519. doi: 10.4012/dmj.2021-002. Epub 2022 May 19.
To assess the effect of 10% carbamide peroxide (CP) and 6% hydrogen peroxide (HP) home bleaching agents on the translucency and color of monolithic zirconia. Ninety disc specimens were fabricated (diameter, 10 mm) from multi-layered (ML), ultra translucent multi-layered (UTML), and super translucent multi-layered (STML) zirconia blocks at three thicknesses (0.4,1,1.5 mm) (n=5). The samples were divided into two subgroups, which were treated with 6% HP (45 min per day) or 10% CP (8 h per day) for 14 days. The color of specimens was measured before bleaching (T0) and after bleaching on the third (T3), seventh (T7), and 14th (T14) day. Color (∆E) and translucency (TP) changes were calculated. The thickness varieties used in the samples and the bleaching agent types used created statistically significant differences only in TP and ∆E, respectively (p<0.05). Bleaching agents can affect TP and ∆E. Patients who have zirconia restorations should be careful when using home bleaching agents.
评估 10%过氧化脲（CP）和 6%过氧化氢（HP）家用漂白剂对整体氧化锆的半透明度和颜色的影响。从多层（ML）、超透光多层（UTML）和超透光多层（STML）氧化锆块中以三种厚度（0.4、1、1.5 毫米）（n=5）制备 90 个圆盘样本。将样本分为两组，分别用 6%HP（每天 45 分钟）或 10%CP（每天 8 小时）处理 14 天。在漂白前（T0）和漂白后的第三天（T3）、第七天（T7）和第十四天（T14）测量样本的颜色。计算颜色变化（∆E）和半透明度（TP）。样本中使用的厚度变化和漂白剂类型仅在 TP 和 ∆E 方面分别产生了统计学上的显著差异（p<0.05）。漂白剂会影响 TP 和 ∆E。使用氧化锆修复体的患者在使用家用漂白剂时应小心。
