The effect of the Poly Vinyl Pyrrolidone (PVP) addition on biological properties of heat-cured acrylic resin denture base material

Abdul Fatah, Nabeel; F. Al-Huwaizi, Hussain; H. Al-Fahdawi, Ibrahim

	The effect of the Poly Vinyl Pyrrolidone (PVP) addition on biological properties of heat-cured acrylic resin denture base material
Journal of baghdad college of dentistry
Article 1, Volume 21, Issue 2, 2009, Pages 1-4
Authors
Nabeel Abdul Fatah; Hussain F. Al-Huwaizi; Ibrahim H. Al-Fahdawi
Abstract
ABSTRACTBackground: The most common materials used for fabrication of denture base are poly methyl methacrylate(PMMA) and methyl methacrylate (MMA). Biocompatibility is especially relevant to prosthodontics and otherrestorative materials.Materials and methods: Biocompatibility was evaluated in comparison with the control materials throughsubcutaneous implantation in the rabbits. 50 specimens were prepared, 5 specimens for each period interval ofbiological study. Excision biopsies were taken after 1 day, 3 days, 7 days, 14 days, and 28 days. Microscopically, thecount of the inflammatory cells was used as a parameter in the evolution of the tissue response in relation to thetested material. The biological properties of the prepared material were evaluated in comparison with the controldenture base acrylic resin. Specimens were grouped to two groups:Group 1: poly (methyl methacrylate) + methyl methacrylate as control. Group 2: poly (methyl methacrylate) 80%,poly vinyl pyrrolidone 20% + methyl methacrylate as experimental.Results: After 3, 7, 14 and 28 days there was no significant differences between means count values of experimentaland positive control sections.Conclusion: The biolcompatibity of poly vinyl pyrrolidone was similar to poly (methyl methacrylate)Key words: Biolcompatibity, poly vinyl pyrrolidone, polymethyl methacrylate.. J Bagh Coll Dentistry 2009; 21(2):1-4)

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