Effect of zinc oxide on flexural and physical properties of PMMA composites

Polymethylmethacrylate (PMMA) is the most widely accepted material in maxillofacial implants due to its superior advantages. The material used for craniofacial implant should have good mechanical and antibacterial properties to withstand forces and eliminate infection. A study was conducted to prepa...

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Bibliographic Details
Main Authors: Hamad, Wan Nur Fadilla Wan, Abdullah, Abdul Manaf, Mohamad, Dasmawati
Format: Conference Proceeding
Language:English
Subjects:
Calcium phosphates
Composition
Dental implants
Flexural strength
Injection molding
Molds
Physical properties
Polymethyl methacrylate
Statistical analysis
Statistical methods
Three dimensional printing
Transplants & implants
Zinc oxide
Zinc oxides
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Summary:Polymethylmethacrylate (PMMA) is the most widely accepted material in maxillofacial implants due to its superior advantages. The material used for craniofacial implant should have good mechanical and antibacterial properties to withstand forces and eliminate infection. A study was conducted to prepare PMMA incorporated with β-tricalcium phosphate (β -TCP) filler and zinc oxide as an antibacterial agent at different compositions and investigate the flexural properties of the produced PMMA/β- TCP/ZnOcomposites. Pure PMMA as control,15 % β –TCP filled, 15% β –TCPwith 2.5% ZnO filled as well as15% β -TCPwith5% ZnOfilled PMMA were prepared. PMMA were mixed together with β -TCP and zinc oxide manually according to the percentages specified until it has reached the homogeneous state. Flexural specimens were prepared by casting the paste in silicone mould which has been fabricated using 3D printed flexural template. The number of samples was n=7 for each composition. Statistical analysis of One Way ANOVA was employed to compare the flexural properties of each samples. Flexural strength of pure PMMA,15 % β –TCP filled, 15% β –TCP with 2.5% ZnO filled as well as 15% β –TCP with 5% ZnO filled PMMA were 60.79, 46.75, 38.72 and 41.49 MPa respectively. The addition of either β- TCP or β- TCP with ZnO decreased the flexural properties and it showed significant differences as compared to pure PMMA (p0.05).
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4968869