In vitro assessment of stainless steel orthodontic brackets coated with titanium oxide mixed Ag for anti-adherent and antibacterial properties against Streptococcus mutans and Porphyromonas gingivalis

2017 ◽  
Vol 112 ◽  
pp. 190-194 ◽  
Author(s):  
Eman Jameel Fatani ◽  
Hamed H. Almutairi ◽  
Ali O. Alharbi ◽  
Yasser Obaidallah Alnakhli ◽  
Darshan Devang Divakar ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Titanium Oxide ◽  
Streptococcus Mutans ◽  
Porphyromonas Gingivalis ◽  
Antibacterial Properties ◽  
Orthodontic Brackets ◽  
In Vitro Assessment

In-vitro Comparative Assessment of Antibacterial and Anti-adherent Effect of Two Types of Surface Modificants on Stainless Steel Orthodontic Brackets Against Streptococcus mutans

2021 ◽  
pp. 030157422110372
Author(s):  
Mrunmaye Math ◽  
Alok G. Shah ◽  
Parag Gangurde ◽  
Anita G. Karandikar ◽  
Anjali Gheware ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Surface Modification ◽  
Streptococcus Mutans ◽  
Rf Magnetron Sputtering ◽  
Orthodontic Brackets ◽  
P Value ◽  
Bacterial Cells ◽  
Colony Forming Units ◽  
Surface Modified

Objective: Comparative evaluation of antibacterial and anti-adherent properties of surface-modified stainless steel (SS) orthodontic brackets against Streptococcus mutans ( S. mutans). Materials and Methods: The study was conducted on 120 SS orthodontic McLaughlin, Bennett, Trevisi (MBT) 0.022″ slot by Leone, Italy. Orthodontic brackets that constituted the sample size were divided into 6 groups, consisting of 20 samples each in two control (non-surface coated) and four experimental groups. The experimental group’s surface coatings were photocatalytic zinc oxide (ZnO) and photocatalytic titanium oxide (TiO2), which were carried out by radiofrequency (RF) magnetron sputtering method for surface modification. Brackets were subjected to microbiological tests against S. mutans. For anti-adherence, weight change, pre- and postexposure, was evaluated to gauge the adherence of bacteria and colony-forming units/milliliter (CFU/mL) count measuring the survival rate of bacterial cells for antibacterial activity. Results: The TiO2-coated group showed statistically significant anti-adherence ( P-value < .05) against S. mutans than control and ZnO groups. The CFU count of TiO2 group was lower than control as well as ZnO group. Conclusion: TiO2 is superior to ZnO and should be continued to be considered for surface modification of orthodontic brackets against White Spot Lesions (WSLs) and gingivitis.

scholarly journals Adhesion of Streptococcus mutans to Different Types of Brackets

2007 ◽  
Vol 77 (6) ◽  
pp. 1090-1095 ◽  
Author(s):  
William Papaioannou ◽  
Sotiria Gizani ◽  
Maria Nassika ◽  
Efterpi Kontou ◽  
Melachrini Nakou
Keyword(s):  
Stainless Steel ◽  
Streptococcus Mutans ◽  
Bacterial Species ◽  
Culture Technique ◽  
Orthodontic Brackets ◽  
Clinical Strain ◽  
Microbial Culture ◽  
Salivary Pellicle ◽  
Different Types ◽  
The Difference

Abstract Objective: To examine the difference in the adhesion of Streptococcus mutans to three different types of orthodontic brackets and the effect of the presence of an early salivary pellicle and Streptococcus sanguis on adhesion. Materials and Methods: Three adhesion experiments were performed using stainless steel, ceramic, and plastic orthodontic brackets. In the first experiment a clinical strain of S mutans adhered to the three different types of brackets (n = 6 for each). For the second, the brackets were treated with saliva before adhesion of S mutans (n = 6 per type of bracket). Finally, the third experiment concerned saliva coated brackets (n = 6 per type of bracket), but before S mutans, S sanguis bacteria were allowed to adhere. The bacteria were always allowed to adhere for 90 minutes in all the experiments. Adhesion was quantitated by a microbial culture technique by treating the brackets with adhering bacteria with trypsin and enumerating the total viable counts of bacteria recovered after cultivation. Results: There were consistently no differences in the adherence to stainless steel, ceramic, or plastic brackets. The presence of an early salivary pellicle and S sanguis reduced the number of adhering S mutans to all three types of brackets. Conclusions: Adhesion of bacteria to orthodontic brackets depends on several factors. The presence of a salivary pellicle and other bacterial species seem to have a significant effect on the adhesion of S mutans, reducing their numbers and further limiting any differences between types of brackets.

Adhesion of Streptococcus mutans on Different Types of Orthodontic Brackets

2014 ◽  
Vol 893 ◽  
pp. 467-471
Author(s):  
Sroisiri Thaweboon ◽  
Yadana Aung ◽  
Suwannee Luppanapornlarp ◽  
Supatchai Boonpratham ◽  
Boonyanit Thaweboon
Keyword(s):  
Streptococcus Mutans ◽  
Orthodontic Brackets ◽  
Bacterial Cells ◽  
Test Results ◽  
Different Types ◽  
Kolmogorov Smirnov ◽  
Bacteria Adhesion ◽  
Post Hoc ◽  
Levene Test

Objective: The aim of this study was to evaluate the adhesion ofStreptococcus mutans (S. mutans)on different types of orthodontic brackets commonly used in Thailand. Materials and Methods: The adhesion ofS. mutanson 7 types of orthodontic brackets (Clarity, Spirit MB, Inspire Ice, 3M, Tomy, Ormco and W&H) was investigatedin vitro. The saliva-coated brackets were immersed in a flat-bottomed 96-well plate containingS. mutanssuspension (108CFU/ml) and incubated at 37 ̇C in 10% CO2and 100 rpm for 2 hours. The adhered bacterial cells were fixed by 99% methanol and stained with 0.5% crystal violet. The quantity of adhesion was determined by measuring optical density (OD) at 590 nm. The data were analyzed with Kolmogorov-Smirnov test, Levene test, one way ANOVA and Games-Howell post hoc test. Results: Significantly higher bacteria adhesion was found on Clarity, Spirit MB, Tomy, Ormco and W&H compared to Inspire Ice and 3M Gemini. However, there were no significant differences among the different types of bracket materials (ceramic, plastics and metal). Conclusion: The amount of bacteria adhesion was independent of the type of bracket materials. The size and shape of brackets also played an important role in the amount of adhesion of microorganism.

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