Effect of various surface treatments on the shear bond strength of 3D-printed denture base resins

Evaluation of various surface treatments is of interest to measure Shear Bond Strength (SBS) in 3D-printed denture base resins. Hence, sixty specimens were organized into control and three experimental groups: air abrasion, silica coating, and plasma treatment. Plasma treatment produced the strongest SBS result of 14.3 ± 1.2 MPa but the control group achieved only 5.2 ± 0.8 MPa (p < 0.001). The adhesion increased substantially after surface treatments but plasma treatment demonstrated the highest level of success. Thus, modifying 3D-printed denture bases through surface treatments allows for better performance in clinical settings.