Secondary caries adjacent to amalgam restorations lined with a fluoridated dentin desensitizer

Franklin Garcia-Godoy, Catherine M. Flaitz, M. John Hicks

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: To determine the in vitro effect of a fluoridated dentin desensitizer solution (DentinBloc) on (1) secondary caries formation, and (2) the interfacial adaptation when used as a cavity liner before amalgam (Dispersalloy) placement. Materials and Methods: 24 macroscopically caries-free molars were selected. Class V cavity preparations on mesial and distal surfaces were placed along the cemento-enamel junction, providing an enamel margin and a root surface margin. DentinBloc was applied prior to alloy restoration in the experimental group for 60 s (the excess was removed with cotton pellets), while a copal cavity varnish (Copalite) was used before alloy restoration in the control group. Polarized light evaluation was performed on longitudinal sections (24 caries risk sites for enamel and dentin margins in each group). Alloy-tooth interfaces were evaluated by SEM. Results: Wall lesions were present in 100% of caries-risk sites for the control group, while 58% of enamel risk sites and 50% of root risk sites had wall lesions in the DentinBloc group. Surface lesion depth was reduced 13% at enamel margins and by 18% at root margins in the experimental group when compared to the control group. Relatively small interface gaps between the alloy and tooth surfaces were seen in both groups, but these were less for the root surface margins (2-5 μm) than for the enamel margins (5-15 μm).

Original languageEnglish (US)
Pages (from-to)254-258
Number of pages5
JournalAmerican Journal of Dentistry
Volume11
Issue number6
StatePublished - 1998
Externally publishedYes

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Dentin
Dental Enamel
Control Groups
Dental Cavity Lining
Tooth
Sulindac
Light
DentinBloc

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Secondary caries adjacent to amalgam restorations lined with a fluoridated dentin desensitizer. / Garcia-Godoy, Franklin; Flaitz, Catherine M.; John Hicks, M.

In: American Journal of Dentistry, Vol. 11, No. 6, 1998, p. 254-258.

Research output: Contribution to journalArticle

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