Evaluation Of Subcutaneous Tissue Response To Implanted Samples Of Acrylic Resin Mixed With Metal Fillers | ||
| The Egyptian Journal of Hospital Medicine | ||
| Article 7, Volume 9, Issue 1, October 2002, Pages 74-84 PDF (799.48 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejhm.2002.18761 | ||
| Authors | ||
| El Sayed Galal Khedr1; Ahmed H. Yossef2 | ||
| 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. | ||
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