A characterization of first-generation flowable composites.
A plethora of new low-viscosity composite resin materials, or flowable composites, have been marketed during the last two years, but little has been published about them. The authors describe research in which they compared the properties--filler, depth or cure, flow, wear, compressive strength, diametral tensile strength, indented biaxial flexure strength and toughness--of flowable and hybrid composites. Mechanical property tests (ISO 4049, ISO/DIS 6872) of eight flowable composites and two hybrid composites were conducted. The flowable composite with the least flow was similar to traditional composites. Mechanical properties were generally about 60 to 90 percent of those of conventional composites. The authors conclude that flowable materials should be used with caution in high-stress applications for restorative dentistry.
Bayne
S C
SC
Department of Operative Dentistry, School of Dentistry, University of North Carolina, Chapel Hill 27599-7450, USA.
Thompson
J Y
JY
Swift
E J
EJ
Stamatiades
P
P
Wilkerson
M
M
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003188:Composite Resins / Q000032:analysis / Q000737:chemistry*; D019245:Compressive Strength; D003764:Dental Materials / Q000032:analysis / Q000737:chemistry*; D003793:Dental Restoration, Permanent; D017220:Dentin-Bonding Agents / Q000032:analysis / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D018583:Pliability; D012212:Rheology; D012822:Silicon Dioxide / Q000032:analysis / Q000737:chemistry; D013314:Stress, Mechanical; D013718:Tensile Strength; D014783:Viscosity; D015040:Zirconium / Q000032:analysis / Q000737:chemistry
D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; C099128:Prodigy; C102735:Revolution (composite resin); C083568:Z100 composite resin; C111840:flowable hybrid composite; D012822:Silicon Dioxide; D015040:Zirconium