Subgroup C: non-etching group, rinsed with deionized water, dried by air blowing, and covered with a silane coupling agent.
Subgroup H
2O
2: immersed in 35% hydrogen peroxide for 1 min, rinsed with deionized water, dried by air blowing, and covered with a silane coupling agent.
Subgroup THF: immersed in tetrahydrofuran for 1 min, rinsed with deionized water, dried by air blowing, and covered with a silane coupling agent.
Subgroup PY: immersed in pyridine for 1 min, rinsed with deionized water, dried by air blowing, and covered with a silane coupling agent.
Subgroup MP: immersed in morpholine for 1 min, rinsed with deionized water, dried by air blowing, and covered with a silane coupling agent.
The same technique was used for all subgroups (
n = 10): the specimens were inserted into a hole in the bottom of the plastic mold, as shown in
Figure 1.
ExcitE F DSC (Ivoclar Vivadent, Schaan, Liechtenstein) was applied for 10 s with a microbrush to produce only a thin layer, and the excess bonding agent was removed with gentle air drying. Then, the bonding agent was activated using a light-curing unit (
Bluephase N®, Ivoclar Vivadent, Schaan, Liechtenstein) at high intensity for 20 s.
Multicore flow (Ivoclar Vivadent, Schaan, Liechtenstein) was injected around the post until the plastic mold was fully filled. The post was then light-cured for 40 s per surface.
Prawatvatchara W., Angkanawiriyarak S., Klaisiri A., Sriamporn T, & Thamrongananskul N. (2023). Effect of Aprotic Solvents on the Microtensile Bond Strength of Composite Core and Fiber-Reinforced Composite Posts. Polymers, 15(19), 3984.