Adhesion of periodontal bacteria to titanium, and titanium alloy powders.
In this study, the adhesion of radioactively labeled Actinomyces viscosus (A. viscosus), Actinobacillus actinomicetemcomitans (Aa) and Porphyromonas gingivalis (P. gingivalis) to titanium (Ti) and Ti-6-Al-4V alloy (Ti-alloy) coated with albumin or human saliva was investigated. All the tested bacteria displayed greater attachment to Ti-alloy than to Ti. P. gingivalis exhibited less adhesion to Ti and Ti-alloy than did the other bacterial strains. Adhesion of A. viscosus and Aa was greatly reduced when Ti or Ti-alloy were coated with albumin or saliva. P. gingivalis demonstrated a lesser reduction in adhesion to albumin or saliva-coated surfaces. The results show that oral bacteria have different adhesion affinities for Ti and Ti-alloy and that both albumin and human saliva reduce bacterial adhesion.
Steinberg
D
D
Department of Oral Biology, Hebrew University-Hadassah, Faculty of Dental Medicine, Israel.
Sela
M N
MN
Klinger
A
A
Kohavi
D
D
D016924:Actinomyces viscosus / Q000502:physiology; D016976:Aggregatibacter actinomycetemcomitans / Q000502:physiology; D000418:Albumins / Q000502:physiology; D000497:Alloys; D001422:Bacterial Adhesion; D003722:Dental Alloys; D003743:Dental Enamel / Q000502:physiology; D006801:Humans; D016966:Porphyromonas gingivalis / Q000502:physiology; D012463:Saliva / Q000502:physiology; D018709:Statistics, Nonparametric; D014025:Titanium
D000418:Albumins; D000497:Alloys; D003722:Dental Alloys; C031462:titanium alloy (TiAl6V4); D014025:Titanium