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Contact Name
Citra Lestari
Contact Email
ceetradent@gmail.com
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bdentjournal@unbrah.ac.id
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Kota padang,
Sumatera barat
INDONESIA
B-Dent, Jurnal Kedokteran Gigi Universitas Baiturrahmah
ISSN : 23015454     EISSN : 26547643     DOI : -
Core Subject : Health,
Jurnal B-Dent (JBD) adalah jurnal kedokteran gigi yang mempublikasikan karya tulis ilmiah (berupa penelitian, laporan kasus dan tinjauan pustaka) yang berhubungan dengan seluruh bidang ilmu kedokteran gigi. Jurnal ini diterbitkan oleh Universitas Baiturrahmah, Padang, Sumatera Barat dan dikelola oleh Dewan Redaksi Fakultas Kedokteran Gigi. Terbit setiap dua kali dalam setahun, saat ini JBD terbit dalam bentuk cetak dan telah didistribusikan ke seluruh Fakultas Kedokteran Gigi di Indonesia, LIPI, Perpustakaan Daerah Sumatera Barat dan Kopertis Wilayah X.
Arjuna Subject : -
Articles 1 Documents
Search results for , issue "Vol 9, No 1 (2022)" : 1 Documents clear
EFFECT OF ADDITIONAL RAMIE AND BANANA STEM FIBERS ON IMPACT AND FLEXURAL STRENGTH OF ACRYLIC DENTURE BASE Prawesthi, Endang; Prawesthi, Endang
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Vol 9, No 1 (2022)
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/jbd.v9i1.963

Abstract

Introduction: Acrylic dentures that broken to use inside or outside mouth are often result of user negligence. One of causes is  lack of physical properties of acrylic, especially against impact strength.Several methods to prevent broken acrylic, include  addition of fibers that function as reinforcement. There are 2 types of fibers,  synthetic and natural fibers.Synthetic fibers are relatively expensive, so an alternative is needed, namely use of natural fibers (Ramie and banana stem). Objective: to determine  effect of adding ramie fiber and banana stem to  impact and flexural strength of acrylic plates. Methods: Experimental Laboratory, number of 60 samples consisted of 30 samples for flexural and impact test. Sample shape is an acrylic plate; size 65x10x2.5 mm for Flexural Test and 80x10x4 mm (Flatwise impact method without notched) for Impact Test. Sample consisted of 3 groups, namely control, addition of ramie and banana stem  fibers. Flexural test with UTM and Impact test with Charpy method. Results:  Flexural  and impact strength mean value of ramie  fiber group had  highest value (132.7459MPa;7.9859x10-3Joule/mm2), followed by control group (99.8499MPa; 4.2757x10-3Joule/mm2) and smallest value was in banana midrib fiber group (91.6865MPa; 3.0303x10-3Joule/mm2). The LSD test of significance(p) between each group in flexural and Impact Strength tests showed a significant difference (p<0.05).The Pearson correlation test showed a significant positive correlation between two tests. Conclusion: The addition of ramie fiber can increase impact and flexural strength of denture acrylic, but it is different from  addition of banana midrib fiber because  presence of flavonoids (phenol compounds) it contains causes a decrease in strength of denture acrylic.

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