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Influence of biofilm removal from the tooth-restoration interface on the progression of secondary caries lesions: a preliminary in vitro model study.

Authors
  • Signori, Cácia1, 2
  • Maske, Tamires Timm1
  • Digmayer Romero, Vitor Henrique1
  • Cenci, Maximiliano Sérgio1
  • 1 Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil. , (Brazil)
  • 2 School of Dentistry, UniAvan University Center, Balneário Camboriú, Brazil. , (Brazil)
Type
Published Article
Journal
Biofouling
Publisher
Informa UK (Taylor & Francis)
Publication Date
Nov 01, 2020
Volume
36
Issue
10
Pages
1272–1283
Identifiers
DOI: 10.1080/08927014.2020.1870219
PMID: 33401970
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

This study investigated the effects of biofilm removal from the tooth-restoration surface on secondary caries lesion progression. Biofilms were grown for up to 28 days on resin-restored enamel-dentin disks with an interfacial gap with DMM or DMM + 1% sucrose under five different protocols of Visible Biofilm Removal (V-BR; n = 7): (1) without V-BR, (2) with partial V-BR, (3) with total V-BR, (4) with total V-BR and saliva reinoculation, and (5) without V-BR under 9 h of cariogenic challenge. V-BR was performed at 7, 14 and 21 days. ΔS and CFU counts served as outcome variables. Linear regression models showed that ΔS values were higher for outer lesions than wall lesions, and outer lesion progression generally increased over time (p < 0.01). All protocols tested, except total V-BR, increased the lactobacilli count (p < 0.005). V-BR did not influence the progression of caries lesions on the cavity wall in this biofilm model.

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