# Fatigue resistance of zirconia crowns coated with bioactive glass

## TL;DR

Coating zirconia crowns with bioactive glass improves their durability and resistance to fatigue under normal use.

## Contribution

This study demonstrates that bioactive glass coating significantly enhances the fatigue resistance of zirconia crowns.

## Key findings

- Coated crowns had a fatigue resistance of 1150 ± 45 N, significantly higher than uncoated crowns at 950 ± 50 N.
- SEM analysis showed reduced microcracks and better stress distribution in the coated crowns.

## Abstract

Zirconia crowns are widely used in dentistry due to their strength and biocompatibility. However, their surface limits bonding
efficiency. Therefore, it is of interest to assess the effect of bioactive glass coating on fatigue resistance of zirconia crowns.
Coated crowns showed significantly higher fatigue resistance (1150 ± 45 N) compared to uncoated ones (950 ± 50 N,
p < 0.05). SEM analysis confirmed reduced microcracks and better stress distribution in coated crowns. Bioactive glass coating
enhances the clinical durability and performance of zirconia crowns under functional loads.