Abstract：
Purpose: The purposes of this study were to evaluate the effect of silver diammine fluoride (SDF) on the shear bond strength (SBS) of pink opaquer (PO) compared to resin-modified glass ionomer (RMGI) and conventional composite (COMP) on demineralized dentin, and also to investigate the mode of failure (MOF). Methods: Sixty extracted third molars were prepared, demineralized for 14 days, and divided into four groups: (1) COMP; (2) SDF+PO; (3) SDF+RMGI; and (4) SDF+COMP (restoration size: two by two mm). SBS, MOF, modified adhesive remnant index (MARI), and remnant adhesive volume (RAV) were evaluated using an Instron® machine, light microscopy, 3D digital scanner ( 3Shape©), and GeoMagic Wrap© software. Results: There was no significant difference in SBS (MPa) among the COMP mean??standard deviation (2.5±1.59), SDF+COMP (2.28±1.05), SDF+PO (3.31±2.63), and SDF+RMGI groups (3.74±2.34). There was no significant difference in MOF and MARI among the four groups (P>0.05). There was no significant difference in RAV (mm3) among the COMP (0.5±0.33), SDF+COMP (0.39±0.44), SDF+PO (0.42±0.38), and SDF+RMGI groups (0.42±0.38; P>0.05). A significant correlation existed between MOF and RAV (R equals 0.721; P<0.001). MOF, MARI, and RAV did not show any correlations with SBS (P>0.05). Conclusions: Silver diammine fluoride does not affect shear bond strength between carious dentinal surface and tooth color restorative materials. The amount of material left on the interface is not related to the amount of shear force needed to break the restoration.
摘要：
目的：本研究的目的是评估与树脂改性玻璃离聚物（RMGI）和常规复合材料（COMP）相比，氟化银二胺（SDF）对粉红色乳白色（PO）的剪切粘结强度（SBS）的影响。脱矿质牙本质，并调查故障模式(MOF)。方法:制备提取的第三磨牙60颗,脱矿质14天，分为四组：（1）COMP；（2）SDFPO；（3）SDFRMGI；（4）SDFCOMP（修复尺寸：两两毫米）。SBS,MOF,改性粘合剂残余指数(MARI)，和剩余粘合剂体积(RAV)使用Instron®机器进行评估，光学显微镜,3D数字扫描仪（3Shape©），和GeoMagicWrap©软件。结果：COMP平均值之间的SBS（MPa）没有显着差异？？标准偏差（2.5±1.59），SDF+COMP(2.28±1.05),SDF+PO(3.31±2.63),SDF+RMGI组(3.74±2.34)。MOF和MARI在四组间差异无统计学意义(P>0.05)。RAV（mm3）在COMP之间没有显着差异（0.5±0.33），SDF+COMP(0.39±0.44),SDF+PO(0.42±0.38),SDF+RMGI组(0.42±0.38;P>0.05)。MOF与RAV之间存在显着相关性（R等于0.721；P<0.001）。MOF,MARI,RAV与SBS无相关性(P>0.05)。结论：氟化银二胺不影响龋齿牙本质表面和牙齿颜色修复材料之间的剪切粘合强度。留在界面上的材料量与破坏修复体所需的剪切力量无关。
