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

## TL;DR

This study shows that surface treatments, especially plasma treatment, significantly improve the bond strength of 3D-printed denture resins.

## Contribution

The paper introduces a comparison of surface treatments to enhance the shear bond strength of 3D-printed denture base resins.

## Key findings

- Plasma treatment achieved the highest shear bond strength of 14.3 ± 1.2 MPa.
- The control group had a significantly lower bond strength of 5.2 ± 0.8 MPa.
- Surface treatments significantly improved adhesion compared to the untreated control group.

## Abstract

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.