Ability of different restorative materials to prevent in situ secondary caries: analysis by polarized light-microscopy and energy-dispersive X-ray

European Journal of Oral Sciences
Thaís Cachuté ParadellaAntonio Olavo Cardoso Jorge

Abstract

Secondary caries is the main cause of direct restoration replacement. The purpose of this study was to analyze enamel adjacent to different restorative materials after in situ cariogenic challenge using polarized-light microscopy (PLM), scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDS). Twelve volunteers, with a low level of dental plaque, a low level of mutans streptococci, and normal salivary flow, wore removable palatal acrylic appliances containing enamel specimens restored with Z250 composite, Freedom composite, Fuji IX glass-ionomer cement, or Vitremer resin-modified glass-ionomer for 14 days. Volunteers dripped one drop of 20% sucrose solution (n = 10) or distilled water (control group) onto each specimen 8 times per day. Specimens were removed from the appliances and submitted to PLM for examination of the lesion area (in mm(2)), followed by dehydration, gold-sputtering, and submission to SEM and EDS. The calcium (Ca) and phosphorus (P) contents were evaluated in weight per cent (%wt). Differences were found between Z250 and Vitremer, and between Z250 and FujiIX, when analyzed using PLM. Energy-dispersive X-ray analysis results showed differences between the studied materials regarding Ca %wt...Continue Reading

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Citations

Feb 9, 2011·European Archives of Paediatric Dentistry : Official Journal of the European Academy of Paediatric Dentistry·V Yengopal, S Mickenautsch
Nov 13, 2012·Dental Materials : Official Publication of the Academy of Dental Materials·Mary Anne S MeloHockin H K Xu
Sep 28, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Ivana NedeljkovicKirsten L Van Landuyt
Feb 11, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Thaís Cachuté ParadellaAntonio Olavo Cardoso Jorge
Jan 24, 2015·Clinical Oral Investigations·Norbert KrämerRoland Frankenberger
Sep 8, 2016·Scientific Reports·Wei ZhouJi-Hua Chen
Apr 6, 2018·Caries Research·Audrey C C HollandersMarie-Charlotte D N J M Huysmans
Jun 12, 2020·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Pasiree ThongthaiSatoshi Imazato
Jul 26, 2017·Clinical Oral Investigations·Norbert KrämerRoland Frankenberger
Jul 25, 2021·Journal of Dental Research·P ThongthaiS Imazato

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