Effect of acidulated phosphate fluoride (APF) gel on the adherence of cariogenic bacteria to resin composites.
OBJECTIVE
To evaluate the effect of 1.23% acidulated phosphate fluoride (APF) and the subsequent polishing on the in vitro adherence of mutans streptococci to resin composites in a model that simulated the oral cavity conditions.


METHODS
Samples of light-curing resin-based composites (Z100 and Z250) were treated with 1.23% APF gel (Sultan) for 1 minute and polished subsequently with Sof-Lex disks. The bacterial adherence of Streptococcus mutans and Streptococcus sobrinus to the APF gel treated resin samples and the subsequent polished samples were analyzed and compared with the adherence to the non-treated controls.


RESULTS
The 1.23% APF gel caused a significant increase in the adherence of Streptococcus mutans and Streptococcus sobrinus. The increasing rate of the bacterial adherence to resin composites after APF treatment ranged from 73.5% to 167% and differed according to the bacterial strains. A decrease in the adherence of the bacteria was found after subsequent polishing with Sof-Lex disks.
Department of Pediatric Dentistry, College of Dentistry, Seoul National University, 28-2, Yeongun-dong, Chongno-ku, Seoul 110-744, Korea.
Young J
YJ
Kim
Ki-Taeg
KT
Jang
Franklin
F
García-Godoy
D000149:Acidulated Phosphate Fluoride / Q000494:pharmacology*; D001422:Bacterial Adhesion / Q000187:drug effects*; D002327:Cariostatic Agents / Q000494:pharmacology*; D003188:Composite Resins / Q000737:chemistry*; D003731:Dental Caries / Q000382:microbiology*; D003775:Dental Polishing / Q000295:instrumentation; D005782:Gels; D006801:Humans; D019275:Radiopharmaceuticals; D012463:Saliva / Q000502:physiology; D012822:Silicon Dioxide / Q000737:chemistry; D013295:Streptococcus mutans / Q000187:drug effects*; D016986:Streptococcus sobrinus / Q000187:drug effects; D013499:Surface Properties; D014316:Tritium; D015040:Zirconium / Q000737:chemistry
D002327:Cariostatic Agents; D003188:Composite Resins; C444701:Filtek Z250; D005782:Gels; D019275:Radiopharmaceuticals; C083568:Z100 composite resin; D014316:Tritium; D000149:Acidulated Phosphate Fluoride; D012822:Silicon Dioxide; D015040:Zirconium