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The Effects of Burnishing NaF/Kaolin/Glycerin Paste on Dentin Permeability
Author(s) -
Pashley D. H.,
Leibach J. G.,
Homer J. A.
Publication year - 1987
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.1987.58.1.19
Subject(s) - burnishing (metal) , dentin , materials science , smear layer , dentistry , chemistry , composite material , medicine , polishing
The effects on dentin permeability of burnishing NaF, kaolin, or glycerin, alone and in various combinations, were determined using an in vitro system. The results indicate that the important variable was not any of the constituents of the paste but the burnishing process itself. Burnishing dentin creates a partial smear layer on the dentin surface, thereby occluding the orifices of dentinal tubules sufficiently to reduce fluid movement across dentin 50 to 80%.