| ORIGINAL ARTICLE |
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| Year : 2022 | Volume
: 19
| Issue : 1 | Page : 90 |
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A comparative evaluation of fracture toughness, flexural strength, and acid buffer capability of a bulk-fill alkasite with high-strength glass-ionomer cement: An in vitro study
Madhuri Sai Battula, Mamta Kaushik, Neha Mehra, Vishnu Raj
Department of Conservative Dentistry and Endodontics, Army College of Dental Sciences, Secunderabad, Telangana, India
Correspondence Address:
Dr. Madhuri Sai Battula
Army College of Dental Sciences, CRPF Road, Jai Jawaharnagar Post, Hyderabad - 500 087, Telangana
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/1735-3327.359327
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Background: Although glass-ionomer cement (GIC) has many unique properties and advantages, it still lacks favorable mechanical properties. Cention N is a recent alkasite material with excellent mechanical properties. The purpose of this study was to compare the mechanical properties (fracture toughness [FT] and flexural strength [FS]) and acid buffer capability of an alkasite material to GIC.
Materials and Methods: In this in vitro study, a total of 60 samples were prepared using Cention N or GIC. Twenty specimens (n = 10) were prepared using beam-shaped Teflon molds for FS, and twenty specimens (n = 10) were prepared with a similar mold with a notch for FT. These were evaluated on a universal testing machine using a three-point bend test. Twenty (n = 10) disk-shaped specimens were prepared for acid buffer capability. The samples were stored in distilled water for a week. This was followed by immersion in lactic acid with a pH of 4 for calculation of the materials acid buffering capacity at 30 and 60 min from exposure using a pH meter. The data obtained were tabulated and subjected to Kolmogorov–Smirnov test and Shapiro–Wilk test to assess the normal distribution and further analyzed using the Student's t-test to assess the level of significance, P < 0.05 was considered statistically significant.
Results: The mean FT, FS, and acid buffer capability of Cention N were significantly higher than GIC at P < 0.05.
Conclusion: The present study surmised that Cention N exhibited higher FT, FS, and acid buffer capability than GIC.
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