Effect of surface area ratios and bacteria on electrochemical behavior of galvanically coupled titanium

Ilwoong Koh, Yoshiki Oshida, Carl J. Andres, Richard Gregory

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Purpose: This study aimed to investigate the electrochemical behavior of commercially pure titanium (grade II) coupled with type IV gold alloy and nickel-chromium alloy at different surface area ratios in 3 different electrolytes. Materials and Methods: Titanium was coupled with gold (Ti/Au) and nickel-chromium (Ti/Ni-Cr), For each couple, 9 surface area ratios between titanium and gold or nickel-chromium were prepared. The electrolytes used were 1% lactic acid, tryptic soy broth media, and Streptococcus mutans culture supernatant. The corrosion polarization curves were obtained, and average values of corrosion potential and corrosion current density were calculated. Results: Both Ti/Au and Ti/Ni-Cr were affected by surface area ratios and different electrolytes, showing the least corrosion rate when the ratio was 1:1 and when the lactic acid was used as an electrolyte. Conclusions: The greater the difference in surface area between titanium and restorative materials, the more corrosive behavior the materials show. The existence of bacteria such as S mutans may aggravate corrosive behavior between different metals.

Original languageEnglish
Pages (from-to)433-436
Number of pages4
JournalInternational Journal of Prosthodontics
Volume21
Issue number5
StatePublished - Sep 2008

Fingerprint

Corrosion
Titanium
Electrolytes
Chromium
Nickel
Bacteria
Caustics
Gold
Lactic Acid
Chromium Alloys
Gold Alloys
Streptococcus mutans
Metals

ASJC Scopus subject areas

  • Oral Surgery

Cite this

Effect of surface area ratios and bacteria on electrochemical behavior of galvanically coupled titanium. / Koh, Ilwoong; Oshida, Yoshiki; Andres, Carl J.; Gregory, Richard.

In: International Journal of Prosthodontics, Vol. 21, No. 5, 09.2008, p. 433-436.

Research output: Contribution to journalArticle

@article{df526ccd2fe6466cb812d2cb6175c260,
title = "Effect of surface area ratios and bacteria on electrochemical behavior of galvanically coupled titanium",
abstract = "Purpose: This study aimed to investigate the electrochemical behavior of commercially pure titanium (grade II) coupled with type IV gold alloy and nickel-chromium alloy at different surface area ratios in 3 different electrolytes. Materials and Methods: Titanium was coupled with gold (Ti/Au) and nickel-chromium (Ti/Ni-Cr), For each couple, 9 surface area ratios between titanium and gold or nickel-chromium were prepared. The electrolytes used were 1{\%} lactic acid, tryptic soy broth media, and Streptococcus mutans culture supernatant. The corrosion polarization curves were obtained, and average values of corrosion potential and corrosion current density were calculated. Results: Both Ti/Au and Ti/Ni-Cr were affected by surface area ratios and different electrolytes, showing the least corrosion rate when the ratio was 1:1 and when the lactic acid was used as an electrolyte. Conclusions: The greater the difference in surface area between titanium and restorative materials, the more corrosive behavior the materials show. The existence of bacteria such as S mutans may aggravate corrosive behavior between different metals.",
author = "Ilwoong Koh and Yoshiki Oshida and Andres, {Carl J.} and Richard Gregory",
year = "2008",
month = "9",
language = "English",
volume = "21",
pages = "433--436",
journal = "International Journal of Prosthodontics",
issn = "0893-2174",
publisher = "Quintessence Publishing Company",
number = "5",

}

TY - JOUR

T1 - Effect of surface area ratios and bacteria on electrochemical behavior of galvanically coupled titanium

AU - Koh, Ilwoong

AU - Oshida, Yoshiki

AU - Andres, Carl J.

AU - Gregory, Richard

PY - 2008/9

Y1 - 2008/9

N2 - Purpose: This study aimed to investigate the electrochemical behavior of commercially pure titanium (grade II) coupled with type IV gold alloy and nickel-chromium alloy at different surface area ratios in 3 different electrolytes. Materials and Methods: Titanium was coupled with gold (Ti/Au) and nickel-chromium (Ti/Ni-Cr), For each couple, 9 surface area ratios between titanium and gold or nickel-chromium were prepared. The electrolytes used were 1% lactic acid, tryptic soy broth media, and Streptococcus mutans culture supernatant. The corrosion polarization curves were obtained, and average values of corrosion potential and corrosion current density were calculated. Results: Both Ti/Au and Ti/Ni-Cr were affected by surface area ratios and different electrolytes, showing the least corrosion rate when the ratio was 1:1 and when the lactic acid was used as an electrolyte. Conclusions: The greater the difference in surface area between titanium and restorative materials, the more corrosive behavior the materials show. The existence of bacteria such as S mutans may aggravate corrosive behavior between different metals.

AB - Purpose: This study aimed to investigate the electrochemical behavior of commercially pure titanium (grade II) coupled with type IV gold alloy and nickel-chromium alloy at different surface area ratios in 3 different electrolytes. Materials and Methods: Titanium was coupled with gold (Ti/Au) and nickel-chromium (Ti/Ni-Cr), For each couple, 9 surface area ratios between titanium and gold or nickel-chromium were prepared. The electrolytes used were 1% lactic acid, tryptic soy broth media, and Streptococcus mutans culture supernatant. The corrosion polarization curves were obtained, and average values of corrosion potential and corrosion current density were calculated. Results: Both Ti/Au and Ti/Ni-Cr were affected by surface area ratios and different electrolytes, showing the least corrosion rate when the ratio was 1:1 and when the lactic acid was used as an electrolyte. Conclusions: The greater the difference in surface area between titanium and restorative materials, the more corrosive behavior the materials show. The existence of bacteria such as S mutans may aggravate corrosive behavior between different metals.

UR - http://www.scopus.com/inward/record.url?scp=53749083872&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=53749083872&partnerID=8YFLogxK

M3 - Article

C2 - 18950067

AN - SCOPUS:53749083872

VL - 21

SP - 433

EP - 436

JO - International Journal of Prosthodontics

JF - International Journal of Prosthodontics

SN - 0893-2174

IS - 5

ER -