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Construction and in vitro test of a new electrode for dentin resistance measurement

  • Steffen Stein EMAIL logo and Michael Gente
Published/Copyright: September 9, 2013
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Biomedizinische Technik/Biomedical Engineering
From the journal Biomedizinische Technik/Biomedical Engineering Volume 58 Issue 5

Abstract

It is necessary to reduce the tooth substance before treating a tooth with a dental crown. The preparation often requires reduction of the dentin. This results in a dentin wound and a thinner substance over the pulp, increases the risk of inflammation, and could result in necrosis of the pulp. To give the dentist information about the amount of dentin over the pulp during preparation, the Prepometer was developed. The function of this device is based on the measurement of the electric resistance of the tooth substance. The measuring behavior of the first-generation Prepometer is characterized by smaller values of electric resistance before reaching full contact of the measuring head to the dentin surface and the actual value RT. This measuring behavior can mislead inexperienced therapists with inaccurate values that suggest thinner dentin than the reality. In this study, a new electrode based on the technology of active guard drive was constructed to overcome this issue. The results show that improvement in the measuring behavior of the new electrode could be achieved, eliminating the earlier disadvantage of the Prepometer.

Keywords: dentin wound; electric resistance measurement; Prepometer; pulp trauma; tooth preparation
Corresponding author: Dr. Steffen Stein, Department of Orofacial Prosthodontics and Masticatory Function, University of Marburg, Georg-Voigt-Straße 3, 35039 Marburg, Germany, Phone: +49 (0)6421/5863277, Fax: +49 (0)6421/5867033, E-mail:

We acknowledge Amber Grochocinski and Stephanie Rudd for their linguistic revisions.

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Received: 2013-2-22
Accepted: 2013-8-13
Published Online: 2013-09-09
Published in Print: 2013-10-01

©2013 by Walter de Gruyter Berlin Boston

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https://doi.org/10.1515/bmt-2013-0031
Keywords for this article
dentin wound; electric resistance measurement; Prepometer; pulp trauma; tooth preparation

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Special issue articles
  4. Editorial
  5. Bioresorbable implants
  6. Review
  7. Biological heart valves
  8. Laser microstructured biodegradable scaffolds
  9. In vivo degradation of magnesium alloy LA63 scaffolds for temporary stabilization of biological myocardial grafts in a swine model
  10. Implant-associated local drug delivery systems based on biodegradable polymers: customized designs for different medical applications
  11. Development of a sirolimus-eluting poly (l-lactide)/poly(4-hydroxybutyrate) absorbable stent for peripheral vascular intervention
  12. Poly-4-hydroxybutyrate (P4HB): a new generation of resorbable medical devices for tissue repair and regeneration
  13. Heart valve engineering: decellularized allograft matrices in clinical practice
  14. Research Articles
  15. Effect of microthread design of dental implants on stress and strain patterns: a three-dimensional finite element analysis
  16. Construction and in vitro test of a new electrode for dentin resistance measurement
  17. Effects of anthropometric variables and electrode placement on the SEMG activity of the biceps brachii muscle during submaximal isometric contraction in arm wrestling
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