Khedr, E., Yossef, A. (2002). Evaluation Of Subcutaneous Tissue Response To Implanted Samples Of Acrylic Resin Mixed With Metal Fillers. The Egyptian Journal of Hospital Medicine, 9(1), 74-84. doi: 10.21608/ejhm.2002.18761
El Sayed Galal Khedr; Ahmed H. Yossef. "Evaluation Of Subcutaneous Tissue Response To Implanted Samples Of Acrylic Resin Mixed With Metal Fillers". The Egyptian Journal of Hospital Medicine, 9, 1, 2002, 74-84. doi: 10.21608/ejhm.2002.18761
Khedr, E., Yossef, A. (2002). 'Evaluation Of Subcutaneous Tissue Response To Implanted Samples Of Acrylic Resin Mixed With Metal Fillers', The Egyptian Journal of Hospital Medicine, 9(1), pp. 74-84. doi: 10.21608/ejhm.2002.18761
Khedr, E., Yossef, A. Evaluation Of Subcutaneous Tissue Response To Implanted Samples Of Acrylic Resin Mixed With Metal Fillers. The Egyptian Journal of Hospital Medicine, 2002; 9(1): 74-84. doi: 10.21608/ejhm.2002.18761
Evaluation Of Subcutaneous Tissue Response To Implanted Samples Of Acrylic Resin Mixed With Metal Fillers
1Department Of Histology, Faculty Of Dental Medicine;Al Azhar University
2Faculty Of Medicine And Department Of Prothodontic, Faculty Of Dental Medicine;Al Azhar University
Abstract
This study was conducted to to study the subcutaneous tissue response as well as some properties of of heat acrylic resin mixed with Aluminum (Al) and Silver (Ag). (2%;3%;5%;10%) concentrations of Al and Ag were added separately to heat cured acrylic resin and the mechanical properties of themixture were examined by the common Elson technique . The addition of 2% of either Al and Ag to heat acrylic resin increased its transverse strength as well as its impact strength ; while 5% and 10% cocentrations reduced both the transverse and the impact strengths of the resin . Therefore 2% concentrationwas chosen for subcutaneous tissue implantation. Three pellets of acrylic resin one containing Al ;one containing Ag and the third was free from both elements as a control were each implanted in the subcutaneous c.t. of twenty male albino rats. A thick connective tissue capsule surrounding each pellet was formed . Al containing acrylic resin was surrounded with a thicker capsule formed of collagen fibers infiltrated with many inflammatory cells ;while the connective tissue reaction against the pure acrylic resin and Ag acrylic resin was minimal in the form of thin capsule formed of collagen fibers; fibroblasts and few inflammatory cells . Measurements of the capsule thickness and the number of inflammmayory cells infiltrating the capsule showed a significant increase in Al group than in Ag and control groups .In conclusion the addition of 2% of either Al and Ag to heat acrylic resin improved its strength but Ag containing heat acrylic resin was more tolerable to tissue.