<p>Uji kekerasan fiber reinforced composite dengan e-glass fiber dental dan e-glass fiber nondental</p><p>Hardness test of reinforced composite fibre on e-glass dental fibre and non-dental fibre</p>

• Main Authors: Febriani Leni Purnamasari, Widya Puspita Sari, Dewi Elianora
• Format: Article
• Language: Indonesian
• Published: Fakultas Kedokteran Gigi Universitas Padjadjaran 2019-05-01
• Series: Jurnal Kedokteran Gigi Universitas Padjadjaran
• Online Access: http://jurnal.unpad.ac.id/jkg/article/view/18048

Pendahuluan:Salah satu alternatif bahan yang dapat digunakan untuk gigi tiruan cekat adalah Fiber Reinforced Composite (FRC) yaitu bahan yang berasal dari kombinasi fiber dan matriks resin. Fiber yang sering digunakan di kedokteran gigi adalah E-glass fiber.Kekurangan dari E-glass fiber dental adalah modulus tensile rendah, self abrasive, ketahanan fatique rendah dan harga relatif mahal. E glass fiber non dental dipilih sebagai alternatif karena kompisisinya hampir sama dengan E-glass fiber dental. Tujuan penelitian adalah mengetahui perbedaan kekerasan antara fiber reinforced composite dengan E-glass fiber dental dan fiber reinforced composite dengan glass fiber non dental. Metode: Jenis penelitian eksperimental laboratorium. Nilai rata-rata kekerasan paling tinggi terdapat pada kelompok FRC dengan E-glass fiber dental (60,83VHN), kelompok dengan glass fiber non-dental (53,56 VHN), sedangkan pada kelompok tanpa fiber  memiliki nilai kekerasan yang paling rendah (48,23 VHN). Analisa statistik menggunakan independent sample t-test. Hasil: Nilai kekerasan e glass fiber dental 60,83VHN, sedangkan e glass non dental 53,56 VHN. Nilai signifikasi yang diperoleh adalah p= 0,000, dimana p<0,05 artinya terdapat perbedaan kekerasan antara fiber reinforced composite dengan E-glass fiber dental dan Fiber reinforced composite dengan glass fiber non-dental.Simpulan:terdapat perbedaan kekerasan antara Fiber Reinforced Composite dengan E-glass fiber dental dan FRC dengan glass fiber non-dental dimana kekerasan FRC dengan E-glass fiber dental lebih tinggi dibandingkan dengan FRC dengan glass fiber non-dental. Kata kunci: Kekerasan, glass fiber dental, glass fiber non-dental.   ABSTRACT Introduction: One alternative material that can be used for fixed denture is Fiber Reinforced Composite (FRC). Fiber Reinforced Composite (FRC) is a material derived from a combination of fiber and resin matrix. Fiber which is often used in dentistry is E-glass fiber. The disadvantages of E-glass dental fiber are low tensile modulus, self-abrasive, low resistance to fatique and relatively expensive prices. E glass non-dental fiber was chosen as an alternative because its composition is almost the same as E-glass fiber dental. The aim of the study was to determine the differences in hardness between fiber reinforced composite with E-glass fiber dental and fiber reinforced composite with glass non-dental fiber. Method: Type of laboratory experimental research. The highest average value of violence was in the Fiber Reinforced Composite group with E-glass dental fiber (60.83 VHN), the group with non-dental glass fiber (53.56 VHN), while in the fiberless group the lowest hardness value was (48.23 VHN). Statistical analysis using independent sample t-test. Result: Hardness value of e glass fiber dental 60.83VHN, while e glass non dental 53.56 VHN. The significance value obtained is p = 0,000, where p <0.05 means that there is a difference in violence between E-glass fiber reinforced composite dental fiber and Fiber reinforced composite with non-dental glass fiber. Conclusion: there is a hardness difference between Fiber Reinforced Composite and E-glass dental fiber and Fiber Reinforced Composite with non-dental glass fiber where the hardness of Fiber Reinforced Composite with E-glass dental fiber is higher compared to Fiber Reinforced Composite with non-dental glass fiber. Keywords: Hardness, dental fiber glass, non-dental glass fiber.