An in vitro study into the effect of a bacterial artificial caries system on the enamel adjacent to composite and amalgam restorations.
A microbial artificial caries system was used to produce caries-like lesions adjacent to amalgam and composite restorations. Polarised microscopy allowed measurement of outer and wall lesions depths. Comparison was made of the depths found in relation to the restorative materials, margin finishing procedures (composite group), varnish application (amalgam group) and thermal stressing. It was found that differences were detectable between the different restorative materials and the type of margin finishing procedure used in the composite group. Varnish application and thermal stressing had little effect. Some comparison is made between this microbial technique, other artificial caries techniques, and other methods of assessing marginal leakage.
Department of Conservative Dentistry, University of Wales College of Medicine, Cardiff, UK.
A S
AS
Gilmour
D H
DH
Edmunds
R G
RG
Newcombe
M F
MF
Clark
D000293:Adolescent; D000704:Analysis of Variance; D001641:Bicuspid; D002648:Child; D003188:Composite Resins / Q000009:adverse effects; D003723:Dental Amalgam / Q000009:adverse effects; D003731:Dental Caries / Q000209:etiology* / Q000382:microbiology; D003737:Dental Cavity Preparation / Q000379:methods*; D003763:Dental Leakage / Q000150:complications*; D003793:Dental Restoration, Permanent / Q000009:adverse effects* / Q000379:methods; D003799:Dental Stress Analysis; D006358:Hot Temperature / Q000009:adverse effects; D006801:Humans; D015203:Reproducibility of Results; D013291:Streptococcus
D003188:Composite Resins; D003723:Dental Amalgam