TY  - JOUR
T1  - The Influence of Resin Matrix on The Water Sorption of Fiber-Reinforced Composites for DENTAL Use
AU - Pekka Matinlinna, Jukka AU - Siswomihardjo, Widowati AU - Sunarintyas, Siti 
JO  - Journal of Engineering and Applied Sciences
VL  - 11
IS  - 12
SP  - 2678
EP  - 2682
PY  - 2016
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2016.2678.2682
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2016.2678.2682
KW  - Fiber-reinforced composite
KW  -bis-GMA
KW  -HDDMA
KW  -water sorption
KW  -comparable
KW  -monomer
AB  - Bis-GMA as resin matrix of FRC is widely used in dentistry is reported as cytotoxic. The resin matrix
studied, 1,6 hexanediol dimethacrylate (HDDMA) has similar reactive groups than bis-GMA is not known as
carcinogens. Clinically, resin matrix absorbs water and lower the material’s strength. This study investigated
the water sorption of FRC based on HDDMA monomer compared to bis-GMA. Fifteen specimens (2.0 mmx
2.0×25.0 mm) were divided into (Group-1): 78.4 wt-% HDDMA+19.6 wt-% MMA+1.0 wt-% CQ+1.0 wt-% CEMA,
(group-2): 49.0 wt-% HDDMA+49.0 wt-% MMA+1.0 w-% CQ+1.0 wt-% CEMA and (group-3): 78.4 wt%
bis-GMA+19.6 wt-% MMA+1.0 wt-% CQ+1.0 wt-% CEMA. Each specimen contained two E-glass fiber rovings.
The specimens were light-cured and immersed in distilled water for 21 days. The differences in weights, beforeafter
immersion were recorded. Group-1 proved the lowest average (0.004%), followed by group-3 (0.003%) and
group-2 (0.01%). There was a significant difference among all groups (p<0.05) while LSD showed a significant
difference between groups 1 and 2 (p<0.05) but no significant difference between groups 1 and 3 (p>0.05). It
is concluded that FRC based on HDDMA matrix (group-1) is comparable to bis-GMA (group-3) for its water
sorption.
ER  -