Abstract
Biocomposites are used to replace a part of body in a reliable and physiologically acceptable manner. Mechanical properties, especially compressive strength is a critical factor in deciding the suitability of bio composites when used as dentures. PMMA is widely used for fabricating dentures because of their good appearance, biocompatibility and low water absorption. The present work examines the compressive strength of PMMA based bio composites containing bio compatible sea shells grounded to micron and nano sizes. Effect of filler percentage and particle size on the compressive strength of the bio composite has been examined. The thermal characteristics of the newly processed biocomposites were also studied. The sea shell based bio composites were found to have maximum compressive strength when the fillers used were in nano size range. The thermal stability of the bio composite was also found to have enhanced with the addition of nano size filler.
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