title: In vitro wear of Ionofil Molar AC quick glass-ionomer cement.
abstract: OBJECTIVE
  The aim of this study was to evaluate the three-body wear-resistance of one type of restorative glass-ionomer cement (GIC).
  
  
  METHODS
  Specimen including conventional GIC (Ionofil Molar AC Quick: IMACQ), hybrid ionomer (Fuji II LC), and composite resin (Heliomolar) were tested in a wearing machine. In this machine, a 6 kg load was applied via pressable chromium-cobalt bar at 5,000, 10,000, 20,000, 40,000, 80,000, 120,000 cycles. Specimen weight was measured by an electronical weight balance before and after each cycle. Data were analyzed using one-way analysis of variance (ANOVA) followed by a t-test, and a paired t-test at P≤0.05.
  
  
  RESULTS
  The highest weight loss has been found in Fuji II LC, then in GIC IMACQ and the least wear rate has been reported in heliomolar composite in all cycles except 120,000 cycles. In 120,000 cycles, the highest weight loss was seen in GIC IMACQ, then Fuji II LC, and finally heliomolar composite. There was a statistically significant difference in weight loss between GIC IMACQ and heliomolar composite (P=0/001).
  
  
  CONCLUSIONS
  The wear rate of GIC IMACQ was between those of heliomolar composite and Fuji II LC glass ionomer in all cycles except 120,000 cycles. The most important advantage of this new-generation glass ionomer is its good manipulability and also high wear-resistance compared to the hybrid ionomer. Therefore, it is suggested that it can be used as restorative material in class I restorations in primary teeth.
authors.affiliation: Dental Materials Research Center, Dental Faculty, Babol Medical University of Sciences, Mazandaran, Iran.
authors.forename: Farida
authors.initials: F
authors.lastname: Abesi
authors.forename: Hengameh
authors.initials: H
authors.lastname: Safarcherati
authors.forename: Javad
authors.initials: J
authors.lastname: Sadati
authors.forename: Hossein
authors.initials: H
authors.lastname: Kheirollahi
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D002858:Chromium Alloys / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D054327:Lubricants / Q000737:chemistry; D008422:Materials Testing; D011140:Polyurethanes / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D012117:Resins, Synthetic / Q000737:chemistry; D012464:Saliva, Artificial / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors
chemical_list: D000180:Acrylic Resins; D002858:Chromium Alloys; D003188:Composite Resins; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; C513708:Heliomolar; D054327:Lubricants; D011140:Polyurethanes; D019279:Resin Cements; D012117:Resins, Synthetic; D012464:Saliva, Artificial