Papers

Nov, 1996

Effects of hexafluorosilicate on the precipitate composition and dentine tubule occlusion by calcium phosphate

JOURNAL OF DENTISTRY
  • A Kawasaki
  • ,
  • K Ishikawa
  • ,
  • T Suge
  • ,
  • M Yoshiyama
  • ,
  • K Asaoka
  • ,
  • S Ebisu

Volume
24
Number
6
First page
429
Last page
434
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1016/0300-5712(95)00101-8
Publisher
BUTTERWORTH-HEINEMANN LTD

Objectives: To improve the calcium phosphate precipitation (CPP) method for the occlusion of dentine tubules with calcium phosphate, the addition of calcium hexafluorosilicate (CaSiF6) to CPP solution was evaluated in vitro with respect to its occluding capacity and the composition of the precipitate.
Methods: The occlusion of dentine tubules was evaluated by SEM observations and by measurements of dentine permeability. The composition of the precipitate was determined by measuring the calcium to phosphorus (Ca/P) ratio of the precipitate in dentine tubules by energy dispersive X-ray spectroscopy (EDS).
Results: The addition of CaSiF6 to the CPP solution resulted in an increase of the Ca/P ratio in the precipitate not only on the dentine surface but also inside the dentine tubules; indicating that the precipitate became more apatitic in nature. The addition of CaSiF6 had no effect on occluding capacity in terms of measurements of dentine permeability or SEM observations. Dentine permeability decreased to approximately 4% of pretreatment values and the dentine tubules were occluded for approximately 10-15 mu m from the dentine surface.
Conclusion: It is concluded that the addition of CaSiF6 to CPP solution was desirable, since it provided a more apatitic precipitate in the dentine tubules, not only on the dentine surface but also inside the tubules, and there were no drawbacks with respect to its occluding capacity. Copyright (C) 1996 Elsevier Science Ltd.

Link information
DOI
https://doi.org/10.1016/0300-5712(95)00101-8
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:A1996VX66900010&DestApp=WOS_CPL
ID information
  • DOI : 10.1016/0300-5712(95)00101-8
  • ISSN : 0300-5712
  • Web of Science ID : WOS:A1996VX66900010

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