title: Properties of hybrid resin composite systems containing prepolymerized filler particles.
abstract: This study compared the properties of newer hybrid resin composites with prepolymerized-filler particles to traditional hybrids and a microfill composite. The following properties were examined per composite: diametral tensile strength, flexural strength/modulus, Knoop microhardness and polymerization shrinkage. Physical properties were determined for each Jason T Blackham, DMD, USAF, General Dentistry, Tyndall composite group (n = 8), showing significant differences between groups per property (p < 0.001). In general, the traditional hybrid composites (Z250, Esthet-X) had higher strength, composites containing pre-polymerized fillers (Gradia Direct Posterior, Premise) performed more moderately and the microfill composite (Durafill VS) had lower strength. Premise and Durafill VS had the lowest polymerization shrinkage.
authors: Tyndall AFB, Panama City, FL, USA.
authors: Jason T
authors: JT
authors: Blackham
authors: Kraig S
authors: KS
authors: Vandewalle
authors: Wen
authors: W
authors: Lien
mesh_terms: D003188:Composite Resins; D003793:Dental Restoration, Permanent; D006244:Hardness; D008422:Materials Testing; D013718:Tensile Strength
chemical_list: D003188:Composite Resins; C470230:Gradia; C507210:premise composite resin; C039734:Durafill