Al-Rafidain Dental Journal

Abstract

To evaluate the FTIR of Hydroxyapatite additives 2 %, and 5 % of dry (HAP) prepared from
egg shells to the polymer. Materials and Methods: Thirty six specimens of heat cured acrylic resin
and other specimens of heat cured acrylic resin with 2 % and or 5 % prepared then immersed in distilled
water for 48 hours then dried for 24 hours then scratched with sharp knife and measured by FTIR
spectra. Results: The result showed when adding 2% &/or 5% hydroxy apatite to heat cured acrylic
resin denture base material resulting a homogenous mixture, without chemical reaction in between and
without changes of acrylic resin properties. Conclusion: they can be used together in patients with
bone hydroxy apatite deficiency