In vitro caries inhibition by polyacid-modified composite resins ('compomers')

Journal of Dentistry
B J MillarJ W Nicholson

Abstract

The aim of this study was to compare the in-vitro caries inhibition of two polyacid-modified composite resins (PMCRs). Three standardized class V cavities were prepared in eight extracted human molar teeth. Two of these cavities in each tooth were restored with Compoglass and Dyract according to manufacturers' guidelines. A conventional glass-ionomer cement restoration (Chemfil II) was placed in the third cavity in each tooth as a control. The teeth were submerged in an acid gel (lactic acid, gelatin, thymol, pH 4.5) for 28 days and then resin embedded. Ground sections were examined at x 160 magnification for enamel surface lesion depth, dentine surface lesion depth, wall lesions and evidence of caries inhibition. There was no significant difference between the depths of enamel or dentine surface lesions between the two compomer and conventional glass-ionomer materials. However, both PMCRs exhibited greater wall lesions than the conventional glass-ionomer material indicating less caries inhibition. These results suggest that PMCRs provide less caries inhibition than glass-ionomer cements.

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Citations

Sep 5, 2002·Journal of Biomedical Materials Research·J H LeeY H Kwon
Dec 5, 2006·European Archives of Paediatric Dentistry : Official Journal of the European Academy of Paediatric Dentistry·S MatalonH Slutzky
Apr 18, 2007·Journal of Materials Science. Materials in Medicine·C A ParkY H Kwon
Nov 7, 1999·Dental Materials : Official Publication of the Academy of Dental Materials·W GeurtsenF Garcia-Godoy
Jun 23, 2000·Dental Materials : Official Publication of the Academy of Dental Materials·J W NicholsonH Limanowska-Shaw
Nov 27, 2002·Journal of Dentistry·Anderson Takeo HaraAntonio Luiz Rodrigues
Oct 25, 2000·The Journal of Prosthetic Dentistry·N Abu-BakrM Iwaku
Apr 7, 2007·Dental Materials Journal·Yun-Hoa JungYong Hoon Kwon
Jun 23, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·John W Nicholson
May 26, 2009·Journal of Applied Oral Science : Revista FOB·Reza Rohani, John W Nicholson
May 15, 2004·Journal of Oral Science·Sis Darendeliler YamanGülten Alan Karabay
Aug 11, 2006·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·J W Nicholson, B Czarnecka

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