The aim of this study was to evaluate the shear bond strength (SBS) between a substructure and veneer using two different veneering techniques: (i) liner and (ii) liner + dentine powder sprinkling). The first technique simply uses liners that act as bonding layers between the substructure and veneering material; the second technique consists of liners on which there has been dentine powder sprinkled. The SBS tests were performed using a universal testing machine (UTM) and the modes of failure were identified for various samples. The results revealed that the mean SBS of the zirconium oxide (ZrO₂) of the sprinkling group was significantly higher (p < 0.001) than that of the ZrO₂ without sprinkling group (27.2 ± 3.95 MPa and 22 ± 3.30 MPa, respectively). Likewise, the mean SBS of the lithium disilicate (LDS) with sprinkling group was significantly higher (p < 0.001) than that of the LDS without sprinkling group (33.1 ± 3.24 MPa and 19.9 ± 3.82 MPa, respectively). The ZrO₂ samples without sprinkling exhibited a combination of adhesive failure and cohesive failure in the veneer itself, whereas with sprinkling exhibited mostly adhesive failure, not cohesive failure. The LDS samples without sprinkling exhibited all types of failures with predominantly cohesive failure of the core; however, the LDS with sprinkling exhibited commonly the cohesive failure of the core.

这项研究的目的是使用两种不同的饰面技术：（i）衬里和（ii）衬里+牙本质粉撒）评估下部结构和饰面板之间的剪切粘结强度（SBS）。第一种技术只是使用衬层作为衬层和饰面材料之间的粘结层。第二种技术是在衬里上撒上牙本质粉。使用通用测试机（UTM）进行SBS测试，并确定各种样品的失效模式。结果表明，氧化锆的平均SBS（的ZrO ₂喷洒组）为显著更高（p  <0.001）比的ZrO ₂无喷洒组（分别为27.2±3.95 MPa和22±3.30 MPa）。同样，具有喷洒基团的二硅酸锂（LDS）的平均SBS显着高于（p  <0.001）不具有喷洒基团的LDS（分别为33.1±3.24 MPa和19.9±3.82 MPa）。不喷洒的ZrO ₂样品在胶合板本身中表现出粘合破坏和内聚破坏的组合，而喷洒的ZrO ₂样品主要表现出粘合破坏而不是内聚破坏。没有洒落的LDS样品表现出所有类型的破坏，主要是核心的内聚破坏。然而，散布的LDS通常表现出芯的内聚破坏。