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Flexural Strength of Glass Fiber Post Following Conditioning with Various Chemical Solutions Running Title: Flexural Strength of Fiber Post with Different Chemical Treatments | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 10, Issue 2, December 2022, Pages 152-159 PDF (405.74 K) | ||
| DOI: 10.25130/tjds.10.2.7 | ||
| Authors | ||
| Zena A. Ahmad* 1; Maan M Nayif2; Ula A. Fathi1 | ||
| 1(1,3) Department of Conservative Dentistry, College of Dentistry, Mosul, Iraq. | ||
| 2(2) Department of Dentistry, Alnoor University College, Bartella, Iraq | ||
| Abstract | ||
| The aim of this study was to assess various chemical solutions on the surfaces of glass fiber post could affect its flexural strength. A total of 80 Glass Fiber posts were divided into eight groups (n=10) based on surface treatment, untreated surface (control), 10% hydrofluoric acid (HF) for 1 minutes, 10% HF for 2 min, 24% hydrogen peroxide (H2O2) for 4 min, 24% H2O2 for 10 min, 35% H2O2 for 4 min, 35% H2O2 for 10 min, and chloroform solution for 1 hour. Fiber posts were immersed in the solutions for the required amount of time and then rinsed and dried. Fiber posts were loaded in three-point bending test using a mechanical testing machine, data recorded and Flexural strength (σ) was measured. Statistical analysis revealed that the highest value of flexural strength was shown in the group treated with 24% H2O2for 4minfollowed by Chloroform group, so they have no significant effect on flexural strength. While the least value was shown in group treated with10% HF for 2min.Treatment with HF significantly decrease flexural strength for both application times. Treatment with H2O2 showed significant decrease only in group treated with 35% H2O2 for 10 min. It was concluded that strong acid etching of HF and long application time of higher concentration of H2O2 had adverse effect on fiber post flexural strength. | ||
| Keywords | ||
| fiber post hydrofluoric acid hydrogen perox | ||
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