Gigi tiruan cekat (GTC) berbasis fiber reinforced composite (FRC) menjadi solusi inovatif dalam kedokteran gigi modern karena sifatnya yang estetis, invasif minimal, dan biokompatibel. Pemanfaatan serat alami, seperti sutra Bombyx mori, menjadi alternatif bahan penguat yang ramah lingkungan dan ekonomis. Pola orientasi serat dalam FRC di antaranya, yaitu unidircetional dan bidirectional (braided). Tujuan penelitian ini adalah mengetahui perbedaan modulus elastisitas fiber reinforced composite antara orientasi pita sutra Bombyx mori unidirectional dan bidirectional.
Penelitian ini menggunakan desain eksperimental laboratoris dengan bahan resin komposit
flowable (Denfil Flow, Vericom, Korea) dan serat sutra
Bombyx mori. Dua kelompok sampel FRC dibuat dengan pola orientasi serat,
unidirectional dan
bidirectional (
braided). Masing-masing kelompok terdiri dari 6 sampel (n=6) berukuran (25 x 2 x 2) mm dan disinar menggunakan
light cure selama 20 detik. Pengujian modulus elastisitas dilakukan menggunakan
universal testing machine dengan metode
three-point bending. Data dianalisis secara statistik menggunakan uji independent t-test (p < 0>
Hasil penelitian menunjukkan bahwa rerata modulus elastisitas (MPa) kelompok FRC dengan orientasi serat unidirectional lebih tinggi, yaitu 1.497,63 ± 180,00 MPa dibandingkan pola bidirectional (braided), yaitu1.044,65 ± 39,68 MPa. Hasil uji statistik independent t-test menunjukkan bahwa terdapat perbedaan yang signifikan antara kelompok unidirectional dan bidirectional (braided) terhadap modulus elastisitas fiber reinforced composite (p < 0>Bombyx mori memberikan perbedaan yang bermakna terhadap modulus elastisitas FRC.
Fixed dental prostheses (GTC) based on fiber-reinforced composite (FRC) are regarded as an innovative solution in modern dentistry due to their aesthetic properties, minimal invasiveness, and biocompatibility. The utilization of natural fibers, such as Bombyx mori silk, has been considered as an environmentally friendly and economical alternative reinforcement material. Fiber orientation patterns in FRC, including unidirectional and bidirectional (braided), are investigated. The purpose of this study was to examine the differences in the elastic modulus of fiber-reinforced composite between unidirectional and bidirectional Bombyx mori silk ribbon orientations.
An experimental laboratory design was utilized using flowable resin composite (Denfil Flow, Vericom, Korea) and Bombyx mori silk fibers. Two groups of FRC samples were prepared with fiber orientations of unidirectional and bidirectional (braided). Each group consisted of 6 samples (n=6) measuring (25 × 2 × 2) mm, which were cured using a light cure for 20 seconds. Elastic modulus testing was conducted using a universal testing machine with the three-point bending method. Data were statistically analyzed using an independent t-test (p < 0>
The results indicated that the mean elastic modulus (MPa) of FRC samples with unidirectional fiber orientation was higher, at 1497.63 ± 180.00 MPa, compared to the bidirectional (braided) pattern at 1044.65 ± 39.68 MPa. It was shown that there was a significant difference between the unidirectional and bidirectional (braided) groups in terms of the elastic modulus of the fiber-reinforced composite (p < 0>
Kata Kunci : Orientasi serat, modulus elastisitas, serat sutra Bombyx mori, FRC
- S1-2024-478156-abstract.pdf
- S1-2024-478156-bibliography.pdf
- S1-2024-478156-tableofcontent.pdf
- S1-2024-478156-title.pdf
- S1-2025-478156-abstract.pdf
- S1-2025-478156-bibliography.pdf
- S1-2025-478156-tableofcontent.pdf
- S1-2025-478156-title.pdf
