PMID- 32099257 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220413 IS - 0001-7019 (Print) IS - 1846-0410 (Electronic) IS - 0001-7019 (Linking) VI - 53 IP - 4 DP - 2019 Dec TI - Compressive Strength of New Glass Ionomer Cement Technology based Restorative Materials after Thermocycling and Cyclic Loading. PG - 318-325 LID - 10.15644/asc53/4/2 [doi] AB - OBJECTIVE: The objective of the study was to compare compressive strengths of two glass ionomer-based materials, with and without a light-cured, nano-filled coating, after cyclic loading and thermocycling. MATERIALS AND METHODS: To determine compressive strength of new restorative materials over a longer period of time, materials were analysed under simulated conditions where cyclic loading replicated masticatory loading and thermocycling simulated thermal oscillations in the oral cavity. Four groups of samples (n=7)-(1) Equia Fil (GC, Tokyo, Japan) uncoated; (2) Equia Fil coated with Equia Coat (GC, Tokyo, Japan); (3) Equia Forte Fil (GC, Tokyo, Japan) uncoated; and (4) Equia Forte Fil coated with Equia Forte coat (GC, Tokyo, Japan)-were subjected to cyclic loading (240,000 cycles) using a chewing simulator (MOD, Esetron Smart Robotechnologies, Ankara, Turkey). RESULTS: Compressive strength measurements were performed according to ISO 9917-1:2007, using the universal mechanical testing machine (Instron, Lloyd, UK). Scanning electron microscope (SEM) analysis was performed after thermocycling. There were no statistically significant differences between Equia Fil and Equia Forte Fil irrespective of the coating (p<0.05), but a trend of increasing compressive strength in the coated samples was observed. CONCLUSIONS: Coating increases the compressive strength of Equia Fil and Equia Forte Fil, but not significantly. FAU - Brzovic Rajic, Valentina AU - Brzovic Rajic V AD - Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, 10000 Zagreb, Croatia. FAU - Ivanisevic Malcic, Ana AU - Ivanisevic Malcic A AD - Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, 10000 Zagreb, Croatia. FAU - Bilge Kutuk, Zeynep AU - Bilge Kutuk Z AD - Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara 06100, Turkey. FAU - Gurgan, Sevil AU - Gurgan S AD - Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara 06100, Turkey. FAU - Jukic, Silvana AU - Jukic S AD - Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, 10000 Zagreb, Croatia. FAU - Miletic, Ivana AU - Miletic I AD - Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, 10000 Zagreb, Croatia. LA - eng PT - Journal Article PL - Croatia TA - Acta Stomatol Croat JT - Acta stomatologica Croatica JID - 0253456 PMC - PMC6993471 OTO - NOTNLM OT - Chewing OT - Compressive Strength OT - Cyclic Loading OT - Glass Ionomer Cement EDAT- 2020/02/27 06:00 MHDA- 2020/02/27 06:01 PMCR- 2019/12/01 CRDT- 2020/02/27 06:00 PHST- 2020/02/27 06:00 [entrez] PHST- 2020/02/27 06:00 [pubmed] PHST- 2020/02/27 06:01 [medline] PHST- 2019/12/01 00:00 [pmc-release] AID - ASC_53(4)_318-325 [pii] AID - 10.15644/asc53/4/2 [doi] PST - ppublish SO - Acta Stomatol Croat. 2019 Dec;53(4):318-325. doi: 10.15644/asc53/4/2.