Identification of dominant aerob bacteri in saliva of the patient with fixed ortodontic appliance

Abstract

Objective: To understand the kind of dominant aerobic bacteria in patient's saliva with an orthodontic appliance. Material and Methods: This is a descriptive observational study with cross-sectional design. Saliva samples from as many as 16 patients with fixed orthodontic appliances were collected. Saliva was taken by a swab method using wood a cotton swab, then put into tube filled with stuart medium. The samples was then isolated to blood agar, put into incubator for 24 hours and then assessed for the catalase test (H 2 O 2 , 3%) and gram colour test to obtain aerobic bacteria results. Results: Identified bacteria from patient's saliva with fixed orthodontic appliance were as many as 44 aerobic gram positive bacteria, such as streptococcus mitis, streptococcus pneumoniae, staphylococcus aureus and enterococcus faecalis. Gram-negative aerobic bacteria found 2 kinds of bacteria, pseudomonas aeruginosa and klebsiella pneumoniae. Conclusion: The most dominant bacteria is the gram positive aerobic bacteria staphylococcus aureus.

The difference of corrosion resistance between NiTi archwires and NiTi with additional cooper archwires in artificial saliva

“…The lowest amount of nickel and chromium in both periods was released from NiTi and HANT archwires, respectively nickel ion release decreased over time while the chromium release increased. [14][15][16] A various study reported a release of 20 μg of nickel per day from a simulated full mouth orthodontic appliance. In this study, the total release of nickel values was well below the normal daily intake of Ni 200-300 μg/day.…”