EFFECT OF ADDING HIGH MOLECULAR NANOCHITOSAN ON TRANSVERSE STRENGTH OF HEAT POLYMERISED POLYMETHYLMETHACRYLATE DENTURE BASE RESIN
Journal Title: Journal of Evolution of Medical and Dental Sciences - Year 2017, Vol 6, Issue 70
Abstract
BACKGROUND Adding a binder to improve the mechanical properties of heat polymerised polymethylmethacrylate such as its transverse strength is now being developed. One of them is by adding high molecular nanochitosan. This study aims to determine the effect of adding high molecular nanochitosan on transverse strength of heat polymerised polymethylmethacrylate denture base resin. MATERIALS AND METHODS 30 pieces (sample) of acrylic plate with size 64 mm x 10 mm x 2.5 mm were divided into 6 groups, i.e. control group and the groups with adding 0.25, 0.50, 0.75, 1.0 and 1.50%. 2 mL nanogel chitosan was added into the mixture of acrylic resin with a P:L ratio (23 g: 10 mL). The batter is inserted into a mould and then pressed and cured at a temperature 740C for 120 minutes and then 1000C for 60 minutes. Acrylic plates issued for finishing. Transverse strength of acrylic resin measured using Torsee’s electronic System Universal Testing Machine and analysed by one-way ANOVA. RESULTS The result showed a significant difference in transverse strength after the addition of nanogel chitosan with different percentages. The addition of nanogel chitosan 1.0% produced the best transverse strength which is 79.003 MPa. CONCLUSION The addition of nanogel chitosan can be used to increase the transverse strength of heat polymerised polymethylmethacrylate denture base resin
Authors and Affiliations
Ika Devi Adiana, Trimurni Abidin, Harry Agusnar, Dennis Dennis
Keywords
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- EP ID EP233448
- DOI 10.14260/Jemds/2017/1085
- Views 61
- Downloads 0
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