In vitro comparative evaluation of mechanical properties of temporary restorative materials used in fixed partial denture

• Published in: Journal of pharmacy & bioallied science Vol. 8; no. 5; pp. 105 - 109
• Main Authors: Saisadan, D, Manimaran, P, Meenapriya, P
• Format: Journal Article
• Language: English
• Published: India Wolters Kluwer India Pvt. Ltd 01.10.2016; Medknow Publications and Media Pvt. Ltd; Medknow Publications & Media Pvt. Ltd; Medknow Publications & Media Pvt Ltd; Wolters Kluwer Medknow Publications
• Subjects: Acrylic resins; Analysis; Conflicts of interest; Fixed partial denture; Implants, Artificial; Light; Load; Mechanical properties; Original; Partial dentures; Polymerization; Prostheses; Prosthesis; provisional materials; provisional materials; mechanical properties; Fixed partial denture
• ISSN: 0975-7406; 0976-4879; 0975-7406
• DOI: 10.4103/0975-7406.191936

Introduction: Materials used to fabricate provisional restorations can be classified as acrylics or resin composites. Provisional crows can be either prefabricated or custom made. Acrylics: These materials have been used to fabricate provisional restorations since the 1930s and usually available as powder and liquid. They are the most commonly used materials today for both single-unit and multiple-unit restorations. In general, their popularity is due to their low cost, acceptable esthetics, and versatility. Composites: Composite provisional materials use bis-acryl resin, a hydrophobic material that is similar to bis-GMA. Composites are available as auto-polymerized, dualpolymerized and visible light polymerized. Preformed Crowns: Preformed provisional crowns or matrices usually consist of tooth-shaped shells of plastic, cellulose acetate or metal. They are commercially available in various tooth sizes and are usually selected for a particular tooth anatomy. They are commonly relined with acrylic resin to provide a more custom fit before cementation, but the plastic and metal crown shells can also be cemented directly onto prepared teeth. Aims and Objectives: The aim of this study is to choose a material to serve as a better interim prosthesis and to compare three different properties - flexural strength, compressive strength, and color stability. Materials and Methods: The samples were made with three different provisional materials (Revotek LC, Protemp 4, TemSpan). Result: It was inferred from the study that no one material was superior in all three tested parameters.