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Fatigue resistance of zirconia crowns coated with bioactive glass
Aditi Kanitkar1, Madhulika Srivastava2, Abhijeet Alok3
1Department of Prosthodontics and Crown & Bridge, Bharati Vidyapeeth Deemed to be University Dental College and Hospital, Sangli, Maharashtra, India.
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.
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