Background: Composite resins are widely used in dentistry to restore dental caries. Recently, short fibre-reinforced composite (FRC) resins have been widely used for high-stress areas, especially in posterior teeth. Bombyx mori silk fibre is under research to reinforce dental composite resin as it has good mechanical properties. Purpose: This study aims to obtain the effects of alkalisation and silk fibre volume fraction on the flexural strength of FRC. Methods: Bombyx mori silk fibres were obtained from Perhutani, Pati, Indonesia. Samples were divided into two alkalisation groups (4% and 8%). Alkalisation of the silk fibres was conducted through the scouring process in NaOH, hydrolysis (30% H2SO4) and drying. Silk fibres were then reinforced in a resin matrix. The samples were subdivided based on the fibre volume fraction reinforcements, which were 0%, 5%, 10% and 15%. Each group of samples consisted of three specimens (n = 3). Flexural strength was measured using a universal testing machine. Data were analysed by two-way ANOVA (p < 0.05) and post-hoc least significant difference test (p < 0.05). Results: The results showed the flexural strength (MPa) means of the 4% alkalisation group were 169.31 ± 54.28 (0%), 76.08 ± 43.69 (5%), 107.86 ± 40.61 (10%) and 101.99 ± 10.61 (15%). The flexural strength (MPa) means of the 8% alkalisation group were 169.31 ± 54.28 (0%), 82.62 ± 22.41 (5%), 111.07 ± 32.89 (10%) and 153.23 ± 23.80 (15%). Statistical analysis by ANOVA indicated that the fibre volume fraction affected the flexural strength of composite resins. Conclusion: It can be concluded that the volume fraction of silk fibre increases the flexural strength of composite resins, although the strength is not as high as a composite resin without fibres. However, the alkalisation percentage did not affect the flexural strength of composite resins, and there was no interaction between alkalisation percentage and fibre volume fraction with the flexural strength of composite resins.
| Published by | Universitas Airlangga |
| Journal Name | Dental Journal (Majalah Kedokteran Gigi) |
| Contact Phone | - |
| Contact Name | Saka Winias |
| Contact Email | saka.winias@gmail.com |
| Location | Kota surabaya, Jawa timur INDONESIA |
| Website | MKG| https://e-journal.unair.ac.id/index.php/MKG| |
| ISSN | ISSN : 19783728, EISSN : 24429740, DOI : -, |
| Core Subject | Health, |
| Meta Subject | Dentistry, |
| Meta Desc | The Dental Journal (Majalah Kedokteran Gigi) (e-ISSN:2442-9740; p-ISSN:1978-3728) is published by the Faculty of Dental Medicine, Universitas Airlangga. Its diciplinary focus is dental science and dental hygiene. The Dental Journal (Majalah Kedokteran Gigi) is published in English on a quarterly basis with each 50-60 page edition containing between nine and eleven scientific articles on research, study literature and case studies. Contributors to the Dental Journal (Majalah Kedokteran Gigi) included: dental researchers, dental practitioners, lecturers, and students drawn from Indonesia and a wide range of other countries. |
| Penulis | Widyasrini, Dyah Anindya , Sunarintyas, Siti |
| Publisher Article | Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en |
| Subtitle Article | Dental Journal (Majalah Kedokteran Gigi) Vol 53, No 2 (2020): (June 2020) |
| Scholar Google | http://scholar.google.com/scholar?q=%2Bintitle%3A&… |
| View Article | https://e-journal.unair.ac.id/… |
| DOI | https://doi.org/10.20473/j.djmkg.v5… |
| DOI Number | DOI: 10.20473/j.djmkg.v53.i2.p57-61 |
| Download Article [1] | https://e-journal.unair.ac.id/MKG/articl… |
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