Deposition of lead and cadmium released by cigarette smoke in dental structures and resin composite.

Abstract:

:Cigarette smoke is a significant source of cadmium, lead, and toxic elements, which are absorbed into the human organism. In this context, the aim of this study was to investigate in vitro the presence of toxic elements, cadmium, and lead deriving from cigarette smoke in the resin composite, dentine, and dental enamel. Eight cylindrical specimens were fabricated from resin composite, bovine enamel, and root dentin fragments that were wet ground and polished with abrasive paper to obtain sections with 6-mm diameter and 2-mm thickness. All specimens were exposed to the smoke of 10 cigarettes/day during 8 days. After the simulation of the cigarette smoke, the specimens were examined with scanning electron microscopy (SEM) and the energy-dispersive X-ray analysis. In the photomicrographic analysis in SEM, no morphological alterations were found; however, the microanalysis identified the presence of cadmium, arsenic, and lead in the different specimens. These findings suggest that the deposition of these elements derived from cigarette smoke could be favored by dental structures and resin composite.

journal_name

Microsc Res Tech

authors

Takeuchi CY,Corrêa-Afonso AM,Pedrazzi H,Dinelli W,Palma-Dibb RG

doi

10.1002/jemt.20903

subject

Has Abstract

pub_date

2011-03-01 00:00:00

pages

287-91

issue

3

eissn

1059-910X

issn

1097-0029

journal_volume

74

pub_type

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