Effect of polishing on the abrasion between zirconia or cobalt-chromium alloy restoration and natural tooth - CeraDirect

When it comes to dental restorations, zirconia has become a popular choice due to its durability and aesthetic appeal. However, one important factor that can affect the longevity of zirconia restorations is the polishing process. But how does polishing impact the wear between zirconia restorations and natural teeth?

Understanding the Importance of Polishing

Polishing zirconia restorations is crucial for achieving a smooth surface that minimizes plaque accumulation and maintains the integrity of the restoration. Proper polishing can also help reduce wear on natural teeth that come into contact with the restoration.

The Effect of Polishing on Wear

A study conducted by dental researchers found that the surface roughness of zirconia restorations significantly impacts the wear of opposing natural teeth. Rough surfaces can lead to increased wear on the enamel of natural teeth, potentially causing damage over time.

However, through proper polishing techniques, the surface roughness of zirconia restorations can be reduced, resulting in less wear on natural teeth. This highlights the importance of skilled dental technicians who understand the impact of polishing on the longevity of restorations.


In conclusion, the polishing of zirconia restorations plays a crucial role in minimizing wear between the restoration and natural teeth. By ensuring a smooth surface through proper polishing techniques, dental professionals can help maintain the integrity of both the restoration and the patient's natural teeth.