Preparation and characterization of polymeric denture adhesive for dental application
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Date
2016-06
Authors
Deena Deanna Azhar
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Abstract
Adhesiveness of the denture adhesive is important in providing a good contact between the denture base material and the oral mucosa. For a long time, starch has been used as an additive in conventional adhesives because it is easily obtained, the process is simple, it is easy to operate, low cost, gives good adhesion and is environmentally friendly. This project is to prepare and investigate the effects of starch as filler in the denture adhesive properties. Corn, sago and tapioca starches were chosen and the starches were incorporated into the denture adhesive in native and modified form. The modification of starches can be done by oxidation gelatinization. Various characterization and testing were conducted such as particle size analyzer (PSA), Fourier transform infrared spectroscopy (FTIR), tensile bond strength, texture profile analysis, pH test, cytotoxicity test (in vitro) and morphology study by using Tabletop Scanning Electron Microscopy (SEM). Tapioca starch exhibited the smallest particle size and has the highest bond strength. Filler loading of 10 % also is found to be the optimum starch composition as it shows the highest mechanical properties compared to 5 % and 15 % filler loading. It is also found that all denture adhesives showed non-toxic properties during the first four days of cell culture studies.