Effect of airborne particle abrasion on the surface roughness of high-translucent 5Y-PSZ following simulated long-term oral aging: a non-contact optical profilometric in-vitro study

Key Points

• The study aims to investigate how airborne particle abrasion affects the surface roughness of high-translucent 5Y-PSZ after long-term oral aging.
• Compared surface roughness using three different abrasives: 50 μm Al₂O₃, 100 μm glass microbeads, and a control group.
• Utilized non-contact optical profilometry for accurate measurements of surface modifications.
• Assessed surface changes following simulated long-term oral aging.
• 50 μm Al₂O₃ particles produced the highest surface roughness (Ra = 2.28 ± 0.06 μm).
• Surface modifications remained stable after aging, with Rq and Rp more sensitive to changes than Ra.
• Statistical significance was reported for surface roughness differences (p < 0.001).

Abstract