Antibacterial Effects of Fluoride-Releasing Orthodontic Composites: A Pilot Study
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Research
VOLUME: 24 ISSUE: 1
P: 3 - 11
April 2011

Antibacterial Effects of Fluoride-Releasing Orthodontic Composites: A Pilot Study

Turk J Orthod 2011;24(1):3-11
1. İnönü Univ. Faculty of Dentistry, Dept. of Orthodontics, Malatya
2. Selçuk Univ. Selçuklu Faculty of Medicine, Dept. of Microbiology, Konya, Turkey
3. Selçuk Üniv. Selçuklu Tıp Fak. Mikrobiyoloji A. D. Konya
No information available.
No information available
Received Date: 21.04.2011
Accepted Date: 17.05.2011
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ABSTRACT

Aim:

The purpose of this study was to evaluate the antibacterial effects of 3 different fluoride-releasing orthodontic composites using a direct contact test (DCT).

Materials and Methods:

The antibacterial properties of fluoride releasing orthodontic composites were evaluated with the DCT. For the DCT, wells (n=8) of 96-microtitre plates were coated with the tested bonding adhesives [Transbond Plus (3M Unitek, Monrovia, USA) Light Bond (Reliance Ortho Prod. Inc. Itasca, IL, USA) Kurasper F (Kuraray Medical Inc. Okayama, Japan)]. Kalzinol (Zinc-Oxide Eugenol Cement) (Dentsply, Konstanz, Germany was used as a positive control material. A Streptococcus mutans suspension was placed on the surface of each specimen for 1 hour at 37°C. Bacterial growth was monitored for 16 hours with a temperature-controlled microplate spectrophotometer. The kinetics of the outgrowth in each well was recorded continuously at 650 nm every 30 minutes. The data were analyzed by one-way ANOVA, as well as by Tamhane's T2 multiple comparison test. The level of significance was determined as P < 0.05.

Results:

The evaluation of the results of the DCT revealed that there were statistically significant differences between the four groups (F= 156,951, P= 0.000). The control material (Kalzinol) showed complete inhibition of bacterial growth (mean 0.01 ±0.05). The multiple comparison test indicated that there were no significant difference in bacterial growth between Kalzinol and Transbond Plus (mean 0.12±0.17) (P= 0.509).. Kurasper F (mean 0.73±0.06) and Light Bond (mean 0.85±0.02) showed statistically significant differences (P= 0.000) compared to Kalzinol.

Conclusion:

Transbond Plus showed marked antibacterial effects.

Keywords:
Fluorides, Antibacterial agents, Orthodontic adhesives