Paper Title :Preparation and Characterizations of Natural Hydroxyapatite-Yttria Stabilized Zirconia Composites for Dental Restorations
Author :Nurshuhaila Mohd Nor Rulhadi, Nurulsaidah Abdul Rahim, Aisyah Mohamad Sharif, Ismail Zainol
Article Citation :Nurshuhaila Mohd Nor Rulhadi ,Nurulsaidah Abdul Rahim ,Aisyah Mohamad Sharif ,Ismail Zainol ,
(2018 ) " Preparation and Characterizations of Natural Hydroxyapatite-Yttria Stabilized Zirconia Composites for Dental Restorations " ,
International Journal of Advances in Science, Engineering and Technology(IJASEAT) ,
pp. 56-60,
Volume-6, Issue-2
Abstract : Resin-based composite (RBC) resembles the color of teeth has been used as a popular dental materials to repair
or restore damaged teeth. The RBC were prepared using a hydroxyapatite from fish scales and yttria stabilised Zirconia as
reinforcement fillers, while the organic resin are the blended monomers of Bis-GMA, TEGDMA and UDMA. The aim of
this study is to determine the effect of addition of yttria stabilised Zirconia (YSZ) on the mechanical properties of natural
hydroxyapatite resin-based composites for dental restoration. The composites were prepared in ratio 30:70 wt% of organic
resin and inorganic filler, respectively. Different ration of YSZ (0, 10, 25, 50 and 75 wt%) was added to the natural
hydroxyapatite (NHAp) powder and mixed with the blended resin. Then, composite was inserted into mould and light cured
with LED polymerization unit for 60 s on the both sides. The flexural strength, compressive strength, Vickers hardness and
surface roughness of composites were measured. The NHAp2 exhibited satisfactory mechanical properties with a flexural
strength, compressive strength, Vickers hardness and surface roughness of 65.61 MPa, 160.34 MPa, 50.80 HV and 120.00
nm, respectively. These results suggested that the natural hydroxyapatite incorporating with YSZ is a promising material for
dental composites.
Keywords - Hydroxyapatite, Yttria Stabilized Zirconia, Mechanical Properties, Dental Composite
Type : Research paper
Published : Volume-6, Issue-2
DOIONLINE NO - IJASEAT-IRAJ-DOIONLINE-12068
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Published on 2018-07-02 |
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