Effect of tooth-brushing with a microcurrent on dentinal tubule occlusion

Gangjae Kim, Byoung Duck Roh, Sung Ho Park, Su Jung Shin, Yooseok Shin

Research output: Contribution to journalArticlepeer-review


The purpose of this study was to investigate whether tooth-brushing with a microcurrent was effective in inducing dentinal tubule occlusion. The specific aims of the study were (1) to evaluate the effectiveness of tooth-brushing with a microcurrent on dentinal tubule occlusion by using scanning electron microscopy (SEM); and (2) to compare the dentinal fluid flow rate after tooth-brushing with a microcurrent by using a sub-nanoliter-scaled fluid flow measuring device (NFMD). All experimental groups showed partially occluded dentinal tubules and crystal-like structures at a specific microcurrent intensity indicated that tooth-brushing with a microcurrent could efficiently occlude dentinal tubules. The decrease in dentinal fluid flow rate in the tooth-brushing with microcurrents group indicated that dentinal tubules were occluded and the flow of dentinal fluid had decreased.

Original languageEnglish
Pages (from-to)766-772
Number of pages7
JournalDental Materials Journal
Issue number5
Publication statusPublished - 2020

Bibliographical note

Funding Information:
This study was performed using equipment donated by Microworld. However, the authors of this paper certify that they have no proprietary, financial, or other personal interest in this study. This work was supported by the National Research Foundation of Korea grant funded by the Korea government (NRF-2018R1A1A1A05018328).

Publisher Copyright:
© 2020, Japanese Society for Dental Materials and Devices. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Dentistry(all)


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