Effect of Non Dental Glass Fiber Orientation on Transverse Strength of Dental Fiber Reinforced Composite

Abstract

aBstraKFRC banyak digunakkan dalam kedoketeran gigi khususnya untuk bridge konstruksi. E glass fiber sering digunakan karna memiliki sifat yang baik dan berikatan baik dengan polimer. Di Indonesia E-glass terbatas dengan harga cukup mahal. Glass fiber non dental banyak tersedia di Indonesia dengan harga terjangkau. Tujuan penelitian ini adalah mengetahui pengaruh orientasi glass fiber non dental pada kekuatan transversa pada gigi FRC. Bahan yang digunakan dalam penelitian ini adalah glass fiber non dental (HJ, China), flowable komposit (CharmFil Flow, DenKist, Korea), Silane coupling agent (Monobond S, Ivoclar Vivadent, Liechtenstein) dan Aquades. Subjek dibagi dalam 2 kelompok. Specimen direndam dalam air selama 24 jam dan 7 hari. Data dianalisis dengan Independent sample T-test. Hasil T-test menunjukkan perbedaan kekuatan transversa dengan 24 jam air perendaman yang signifikan antara dua kelompok orientasi (p< 0,05). Data dari 7 hari perendaman tidak ada perbdaan statistik antara kelompok (p> 0,05). Kesimpulan: ada perbedaan kekuatan transversa antara roving dan woven roving orientasi di gigi FRC.Kata Kunci: Fiber reinforced composite; Glass fiber non dental; Kekuatan transversa; Orientasi fiber. aBstraCt FRC is widely used in dentistry especially for dental bridges construction. E glass fiber is commonly used because it has good properties and good bonding with polymers. Its availability is limited and its price quite expensive in Indonesia.Non dental glass fiber is available in Indonesia with lower price. The aim of this research was to evaluate the effect of non dental glass fiber orientation on transverse strength of dental FRC. Non dental glass fiber (HJ, China)

Enhancing the impact strength of acrylic resin base plate by adding non-dental E-glass fiber

“…The effectiveness of fiber reinforcement involves many influential factors, one of which is the orientation of fiber to be added. 11 Fiber with unidirectional orientation had a Ratchet factor of 1 or 100% meaning that all fibers were exposed to the load, so the remaining load received by the matrix was only small. The lowest impact strength was in the addition of fiber with a bidirectional orientation which has a reinforcement efficiency of only 0.25 or 25%, meaning that the fiber exposed to the load was only 25%, and the remaining was borne by the matrix.…”

Orientation and Type of Non-dental Glass Fiber Towards The Flexural of Fiber Reinforced Composite

“…Some researchers conducted research by comparing FRC reinforced using non-dental glass fiber and glass fiber dental. FRC with glass fiber dental reinforcement has a smaller flexural strength value (120 MPa) than FRC which is reinforced with non-dental roving glass fiber (133 MPa) and woven roving (145 MPa) after soaking for 7 days (Khalil, 2015) 20 . Sumantri (2015) stated that FRC shear strength with glass fiber dental reinforcement was smaller (11.37 MPa) when compared with non-dental mats glass fiber (11.51 MPa) and non-dental woven roving glass fiber (12.58 MPa) in volumetric 2.8vol%.…”