PMID- 21566866 OWN - NLM STAT- MEDLINE DCOM- 20150623 LR - 20181201 IS - 1006-7248 (Print) IS - 1006-7248 (Linking) VI - 20 IP - 2 DP - 2011 Apr TI - [Evaluation of mechanical properties of four kinds of composite resins for inlay]. PG - 164-8 AB - PURPOSE: To evaluate the compressive strength, wear resistance, hardness, and soaking fatigue of four composite resins for inlay, which were Ceramage, Surefil, Solitaire 2, and Filtek(TM) Z350. Scanning electron microscope (SEM) was used to analyze the microstructures of the wear surface of the samples. METHODS: The samples for the compression test, hardness test and wear were prepared. The samples were respectively immersed in the artificial saliva for 2 months for immersed test. The electronic universal testing machine was used to test the compression strength. Hardness was quantified by micro-Vickers hardness test. The wear tester was used for the wear test. SEM was used to analyze the microstructures of the wear surface of samples. All the data was analyzed by using SPSS17.0 software package. RESULTS: The compressive strength of Surefil was the biggest which was significantly higher than the other three resins before soaking (P<0.05). After soaking, there was no significant difference between the composite resins (P>0.05). The hardness of Surefil was the best, and significant difference was found between the hardness of the materials before soaking (P<0.05). After soaking, no significant difference was obtained between the hardness of Surefil and Filtek(TM) Z350 (P>0.05).The compressive strength and hardness of 4 materials decreased after soaking in artificial saliva. But only the compressive strength of Filtek(TM) Z350 had no significant change after immersion (P>0.05). Except Filtek(TM) Z350, there was significant difference between the other three materials (P<0.05). Significant relationship was observed between wear and hardness of three materials (P<0.05). According to SEM observation, abrasive wear occurred in four materials. In addition to Ceramage, other composite resins had adhesive wear. CONCLUSIONS: The mechanical property of Surefil is the best, and it is suitable for fabrication of posterior inlay. Filtek(TM) Z350's ability to resist fatigue is the best. FAU - Jiang, Ling-ling AU - Jiang LL AD - Department of Comprehensive Dentistry, College of Stomatology, Jilin University. Changchun 130021, Jilin Province, China. free12ling@163.com FAU - Liu, Hong AU - Liu H FAU - Wang, Jin-rui AU - Wang JR LA - chi PT - Journal Article PL - China TA - Shanghai Kou Qiang Yi Xue JT - Shanghai kou qiang yi xue = Shanghai journal of stomatology JID - 101090220 RN - 0 (Composite Resins) RN - 0 (Silicates) RN - 0 (ceramage) SB - IM MH - Composite Resins MH - Compressive Strength MH - *Dental Restoration Wear MH - Hardness MH - Humans MH - *Inlays MH - Materials Testing MH - Silicates EDAT- 2011/05/14 06:00 MHDA- 2015/06/24 06:00 CRDT- 2011/05/14 06:00 PHST- 2011/05/14 06:00 [entrez] PHST- 2011/05/14 06:00 [pubmed] PHST- 2015/06/24 06:00 [medline] PST - ppublish SO - Shanghai Kou Qiang Yi Xue. 2011 Apr;20(2):164-8.