Surface roughness of finished composite resins.
This study evaluated the results of polishing composite resin by using the following finishing and polishing techniques: Arkansas stone burs; eight-blade tungsten-carbide burs; diamond burs; aluminum-oxide disks; no polishing; and 12- and 30-blade tungsten-carbide burs. The results were compared to ascertain which technique delivers the smoothest surface. The study was done with 120 class V restorations on extracted human teeth distributed in two groups (I and II) of 60 restorations each. Group I teeth samples were filled with microfilled composite resin and Group II with a hybrid composite resin. Readings were made with a profilometer to evaluate the final polishing. The conclusions from the results of the study were that microfilled composite resins provided a better finish when treated with aluminum-oxide disks. These results were statistically significant (p < 0.001). When hybrid composites were used the control group recorded the lowest values.
Berastegui
E
E
University of Barcelona, Faculty of Dentistry, Spain.
Canalda
C
C
Brau
E
E
Miquel
C
C
D000537:Aluminum Oxide; D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate; D002244:Carbon; D017554:Carbon Compounds, Inorganic; D003188:Composite Resins / Q000737:chemistry; D003775:Dental Polishing / Q000295:instrumentation / Q000379:methods*; D018130:Diamond; D006801:Humans; D019279:Resin Cements; D012825:Silicon; D017655:Silicon Compounds; D013499:Surface Properties; D014414:Tungsten; D017973:Tungsten Compounds
D017554:Carbon Compounds, Inorganic; D003188:Composite Resins; D019279:Resin Cements; D017655:Silicon Compounds; D017973:Tungsten Compounds; C002802:tungsten carbide; C065770:Herculite XR; D017438:Bisphenol A-Glycidyl Methacrylate; D002244:Carbon; D018130:Diamond; D000537:Aluminum Oxide; D014414:Tungsten; C022088:silicon carbide; D012825:Silicon