The Effect of Incorporation of Two Different Fibers on Some Mechanical Properties of Heat Cure Acrylic Resin Dr. Abdalbasit A Fatihallah BDS, MSc, PhD | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 11, Issue 1, December 2014, Pages 48-56 | ||
| Authors | ||
| Dr. Abdalbasit A Fatihallah BDS; ; ; Dr. Mithaq Radhi Mohammed BDS; ; Dr. Yasameen Taha BDS; ; Dr. Zainab Salih BDS; | ||
| Abstract | ||
| To evaluate the effect of addition of different fibers on some mechanical properties of heat cured acrylic resin (flexural strength, impact strength and hardness). 210 specimens were used in the study.70 specimens were used for flexural strength with measurements (65mm*10mm*2.5mm) length, width and thickness respectively. The specimens were divided into seven test groups (n=10). The first group is the Control one and it was without fiber reinforcement, second group reinforced with 2mm polyester fibers, third group reinforced with 4mm polyester fibers, fourth group reinforced with 2mm Polypropylene fibers, fifth group reinforced with 4mm Polypropylene fibers, sixth group reinforced with 2mm of both fibers (polyester and Polypropylene), and seventh group reinforced with 4mm of both fibers (polyester and Polypropylene). 70 specimens were used for impact strength in seven group (n=10) with measurements (80mm*10mm*4mm) length, width and thickness respectively. 70 specimens were used for hardness test in seven groups (n=10) with measurements (65mm*10mm*2.5mm) length, width and thickness respectively. The Results Show that there are highly significant differences between all groups except for a significant differences between control and combination 2 mm fiber length (mean differences=33.45). For the hardness test the comparisons show that there is no significant differences between groups except for a significant differences between control and combination of both fibers with 2mm length (mean differences=- 1.34). For impact strength; there are highly significant differences between all groups except for a significant differences between Polyester fiber of 2mm length and combination of the two fiber of 2 mm length (mean differences=-3.1). In conclusion, the addition of different fibers (polyester and Polypropylene) to acrylic resin gives it more resistance to break and more resistance to bend. | ||
| Keywords | ||
| KEYWORDS; polyester fibers; and Polypropylene fibers | ||
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