A comparison of the diametral tensile strength, the flexural strength, and the compressive strength of two new core materials to a silver alloy-reinforced glass-ionomer material.
This study compared three mechanical properties of two recently introduced core materials, a light-activated glass ionomer cement (VariGlass VLC) and a fluoride-release dual cure composite resin (FluoroCore), with those of a conventional silver-reinforced glass-ionomer cement (Miracle Mix). Seventy-two samples (eight per product for each property) were prepared for testing diametral tensile strength, flexural strength, and compressive strength. The specimens were cured, stored for 24 hours at 37 degrees C in 100% humidity, and tested with the use of an Instron universal testing machine. The results of this study indicate that the diametral tensile strength, flexural strength, and compressive strength of the FluoroCore and VariGlass VLC materials were significantly higher than those of the conventional Miracle Mix. The values obtained with FluoroCore material were consistently higher than those obtained with VariGlass VLC material.
Division of Restorative and Prosthodontic Sciences, Kriser Dental Center, New York University, New York.
S
S
Levartovsky
E
E
Kuyinu
M
M
Georgescu
G R
GR
Goldstein
D000180:Acrylic Resins / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003722:Dental Alloys / Q000737:chemistry*; D003799:Dental Stress Analysis / Q000295:instrumentation; D004548:Elasticity; D005460:Fluorides, Topical / Q000737:chemistry; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006813:Humidity; D008422:Materials Testing / Q000295:instrumentation; D008855:Microscopy, Electron, Scanning; D012834:Silver / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013718:Tensile Strength
D000180:Acrylic Resins; D003188:Composite Resins; D003722:Dental Alloys; D005460:Fluorides, Topical; C074316:FluoroCore; D005899:Glass Ionomer Cements; C081982:VariGlass VLC; C078801:Miracle Mix; D012834:Silver