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Caries arresting effect of silver diamine fluoride on dentine carious lesion with S. mutans and L. acidophilus dual-species cariogenic biofilm

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Caries arresting effect of silver diamine fluoride on dentine carious lesion with S. mutans and L. acidophilus dual-species cariogenic biofilm

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dc.contributor.author Mei, May Lei es
dc.contributor.author Chu, Chun Hung es
dc.contributor.author Low, Kan-Hung es
dc.contributor.author Che, Ching-Ming es
dc.contributor.author Lo, Edward Chin Man es
dc.date.accessioned 2014-07-04T07:51:45Z
dc.date.available 2014-07-04T07:51:45Z
dc.date.issued 2013 es
dc.identifier.citation Mei, May Lei ; Chu, Chun Hung ; Low, Kan-Hung ; Che, Ching-Ming ; Lo, Edward Chin Man. Caries arresting effect of silver diamine fluoride on dentine carious lesion with S. mutans and L. acidophilus dual-species cariogenic biofilm. En: Medicina oral, patología oral y cirugía bucal. Ed inglesa, 2013, Vol. 18, No. 6: 824-831 es
dc.identifier.uri http://hdl.handle.net/10550/36840
dc.description.abstract Objectives: This in vitro study investigated the effects of silver diamine fluoride (SDF) on dentine carious lesion with cariogenic biofilm. Study Design: Thirty human dentine blocks were inoculated with Streptococcus mutans and Lactobacillus acidophilus dual-species biofilm to create carious lesion. They were equally divided into test and control group to receive topical application of SDF and water. After incubation anaerobically using micro-well plate at 37oC for 7 days, the biofilms were evaluated for kinetics, morphology and viability by colony forming units (CFU), scanning electron microscopy (SEM), and confocal microscopy (CLSM), respectively. The carious lesion underwent crystal characteristics analysis, evaluation of the changes in chemical structure and density of collagen fibrils using x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and immune-labeling. Results: The log CFU of S. mutans and L. acidophilus in the test group was significantly lower than control group. SEM and CLSM showed confluent biofilm in control group, but not in test group. XRD showed the loss of crystallinity of dentine due to the dissolution of hydroxyapatite crystal structure in test group was less than control group. FTIR showed that log [Amide I: HPO4 2-] for test vs. control group was 0.31±0.10 vs. 0.57±0.13 (p<0.05). The goldlabeling density in test vs. control group was 8.54±2.44/ìm2 vs. 12.91±4.24/ìm2 (p=0.04). Conclusions: SDF had antimicrobial activity against the cariogenic biofilms and reduced demineralization of dentine. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Caries arresting effect of silver diamine fluoride on dentine carious lesion with S. mutans and L. acidophilus dual-species cariogenic biofilm es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES
dc.identifier.url http://www.medicinaoral.com/pubmed/medoralv18_i6_p824.pdf es

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