Title of article :
Quantitative evaluation of the oral biofilm-removing capacity of a dental water jet using an electron-probe microanalyzer
Author/Authors :
Kato، نويسنده , , Kazuo and Tamura، نويسنده , , Kiyomi and Nakagaki، نويسنده , , Haruo، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
6
From page :
30
To page :
35
Abstract :
Objective tudy was conducted to evaluate the oral biofilm-removing capacity of a dental water jet (DWJ) by measuring biofilm thickness using an electron-probe microanalyzer (EPMA). s consenting subjects wore in situ plaque-generating devices, which consisted of a pair of 4 mm2 enamel slabs attached to the upper molars for 2 days. Each device removed from the mouth was clamped, and one of the slab surfaces was treated with the DWJ, irrigating it for 5 s. The devices were randomly assigned to three different pressure settings of 707, 350 or 102 kPa. Another slab with no treatment served as a control. Each slab was freeze-dried, sputter-coated with platinum, and examined using secondary-electron imaging. The slabs were then embedded in methacrylate and cross-sectioned in the centre. Their surfaces were polished, coated with carbon, and examined using backscattered electron compositional (COMPO) imaging. The area between the enamel and the outer biofilm surface, indicated by a thin platinum layer, was measured by COMPO imaging to calculate the average thickness of the biofilm on the specimen. s moval capacity of biofilm by irrigation was estimated using a reduced rate of biofilm thickness, which was calculated from the differences between a pair of treated and control slabs. The reduced rates were 85.5% at 707 kPa, 85.1% at 350 kPa and 63.4% at 102 kPa, indicating that biofilm thickness was significantly reduced at every pressure setting. sions sults suggest that irrigation using a DWJ would be an effective means of plaque control.
Keywords :
Backscattered electron image , Oral biofilm , Quantitative Evaluation , Removing capacity , Electron-probe microanalyzer , Dental water jet
Journal title :
Archives of Oral Biology
Serial Year :
2012
Journal title :
Archives of Oral Biology
Record number :
1806667
Link To Document :
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