en ترمیمی Cosmetic and Restorative Dentistry پژوهشي Research <p> <strong>Background:</strong> The interim restorative materials should have certain mechanical properties to withstand in oral cavity. The aim of this study was to evaluate the hardness and wear resistance ofinterim restorative materials. </p><p> <strong>Materials and Methods:</strong> Fifteen identical rectangular shape specimens with dimensions of 2 mm × 10 mm × 30 mm were made from 7 interim materials (TempSpan, Protemp 3 Garant, Revotek, Unifast LC, Tempron, Duralay, and Acropars). The Vickers hardness and abrasive wear ofspecimens were tested in dry conditions and after 1 week storage in artificial saliva. The depth ofwear was measured using surface roughness inspection device. Data were subjected to Kruskal–Wallis and Mann–Whitney tests. The Pearson correlation coefficient was used to determine therelationship between hardness and wear (á =0.05). </p><p> <strong>Results:</strong> TempSpan had the highest hardness. The wear resistance of TempSpan (in dry condition) andRevotek (after conditioning in artificial saliva) was significantly higher (P < 0.05). There was no statisticallysignificant correlation between degree of wear and hardness of the materials (P = 0.281, r = –0.31). </p><p> <strong>Conclusion:</strong> Hardness and wear resistance of interim resins are material related rather than category specified. </p><hr><p></p><p> <strong>Source: </strong>Dental Research Journal</p><p> <a href="http://drj.mui.ac.ir/index.php/drj/article/view/1413" target="_blank"><font color="#0000ff">Full Text</font></a></p> Acrylic resins, composite resins, dental restorations, dental restorations wear, Hardness 0 0 http://idai.ir/browse.php?a_code=A-10-32-1192&slc_lang=en&sid=1 Omid Savabi 10031947532846005198 10031947532846005198 No Torabinejad Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences Farahnaz Nejatidanesh nejati@dnt.mui.ac.ir 10031947532846005199 10031947532846005199 Yes Dental Materials Research Center, School of Dentistry, Isfahan University of Medical Sciences Mohamad Hossein Fathi 10031947532846005200 10031947532846005200 No Department of Materials Engineering, Biomaterials Research Group, Isfahan University of Technology Amir Arsalan Navabi 10031947532846005201 10031947532846005201 No Dental Students' Research Committee, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran Ghazal Savabi 10031947532846005202 10031947532846005202 No Dental Students’ Research Committee, School of Dentistry, Isfahan Azad Islamic University, Isfahan, Iran