Characterization of inorganic fillers in visible-light-cured dental composite resins.
Inorganic fillers in seven visible-light (VL)-cured dental composite resins were examined for their size, composition, phase and content, employing the following analytical instruments. SEM observations indicated that five samples could be classified into the hybrid type while the remaining two belonged to micro-filled and sub-micron types. EDX analyses revealed that five samples contained BaO while others lacked BaO. XRD analyses showed that three were in vitreous phase, two were in the crystalline phase and two were mixtures of both. DTG thermal analyses indicated that the hybrid type composites had the higher inorganic filler content (wt%) than the composites of two other types. In conclusion, wide varieties exist in the inorganic fillers in VL-cured dental composite resins currently utilized.
Khan
A M
AM
Department of Operative Dentistry, Hiroshima University School of Dentistry, Japan.
Suzuki
H
H
Nomura
Y
Y
Taira
M
M
Wakasa
K
K
Shintani
H
H
Yamaki
M
M
D000537:Aluminum Oxide / Q000032:analysis; D000538:Aluminum Silicates / Q000032:analysis; D001464:Barium / Q000032:analysis; D017609:Barium Compounds; D003188:Composite Resins / Q000032:analysis* / Q000737:chemistry; D003461:Crystallography; D004577:Electron Probe Microanalysis; D005898:Glass / Q000032:analysis; D008027:Light; D008855:Microscopy, Electron, Scanning; D010087:Oxides; D010316:Particle Size; D011108:Polymers / Q000032:analysis / Q000737:chemistry; D012822:Silicon Dioxide / Q000032:analysis; D013499:Surface Properties; D013818:Thermogravimetry; D014961:X-Ray Diffraction; D015040:Zirconium / Q000032:analysis
D000538:Aluminum Silicates; D017609:Barium Compounds; D003188:Composite Resins; D010087:Oxides; D011108:Polymers; D001464:Barium; D012822:Silicon Dioxide; C077606:barium oxide; D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide