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Corresponding Author

Mohammady, Eman

Document Type

Original Study

Abstract

Purpose: To compare the effect of thermoplastic resin and heat cured acrylic resindenture base materials on pocket depth and bone height around two mandibular caninessupporting mandibular tooth supported over denture. Subject and Methods: Tenpatients having completely edentulous maxillary ridge and bilateral canine in the lowerarch were selected. Root canal treatment and preparation were performed to obtainnon coping abutment with amalgam plugs that covered with over denture. Maxillarycomplete dentures were constructed for all patients. Patients were divided into two equalgroups. Group I: received thermoplastic mandibular over denture. Group II: receivedconventional heat cure acrylic resin mandibular over denture. Clinical and radiographic evaluation were performed at denture insertion , after 6month and after 9monthfor both mandibular over denture. Results: Statistical analysis of bone height showedthat group I (thermoplastic denture) has less bone resorption than group II (acrylicdenture) which was statically significant. Statistical analysis of change in pocket depthshowed that group I (thermoplastic denture) has less change in the pocket depth thangroup II (acrylic denture) which was not statistically significant. Conclusion: Withinthe limitation of this study thermoplastic over denture preserved pocket depth and boneheight more than conventional heat cured acrylic resin.

Keywords

overdenture; thermoplastic resin; Bone height

Subject Area

Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)

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