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Evaluation of In-Vitro Efficacy of Active Ingredients in Dentifrice Used for Different Treatment Times
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  • Journal title : Journal of dental hygiene science
  • Volume 16, Issue 2,  2016, pp.176-182
  • Publisher : the Korean Society of Dental Hygiene science
  • DOI : 10.17135/jdhs.2016.16.2.176
 Title & Authors
Evaluation of In-Vitro Efficacy of Active Ingredients in Dentifrice Used for Different Treatment Times
Ahn, Jae-Hyun; Kim, Ji-Hye; Kim, Ji-Young;
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 Abstract
The purpose of this study was to evaluate the in-vitro efficacy of the active ingredients of dentifrice following treatment time. The whitening effect was evaluated by a change in lightness value relative to the contact time of hydrogen peroxide, by using artificially stained hydroxyapatite discs. The anti-calculus effect was assessed based on the amount of calcium eluted from the human dental calculus by sodium pyrophosphate. Remineralization was evaluated by the Vickers hardness test following the application of sodium fluoride to bovine enamel. In order to view dentinal tubules occlusion, the formation of insoluble calcium salts by bovine dentin specimens was observed using scanning electron microscopy. Change in lightness value () was after 1 min of treatment, after 3 min, after 10 min, after 30 min, and after 60 min. The amount of calcium eluted from the human dental calculus was after 1 min of treatment, after 3 min, after 10 min, after 30 min, and after 60 min. The Vickers hardness change value () was after 1 min, after 3 min, after 10 min, after 30 min, and after 60 min. Partial dentinal tubules occlusion was observed at 10 min and complete occlusion was evident at 60 min. In summary, the use of patch type dentifrices for 10, 30, or 60 min were 1.57 to 8.26 times more effective than using the paste type dentifrices for 1 to 3 min. Based on these findings, it is reasonable to expect that the use of patch type dentifrices for 10 min would lead to remineralization, anti-calculus and dentinal tubules occlusion effects, and that use for 30 min would result in a whitening effect.
 Keywords
Active ingredient;Dentifrice;Patch;Treatment time;
 Language
Korean
 Cited by
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