1. Department of Periodontology, Institute of Health Sciences Marmara University Istanbul Turkey
2. Oral Microbiology Research Laboratory, Faculty of Dentistry Kuwait University Safat Kuwait
3. Department of Periodontology, Faculty of Dentistry Marmara University Istanbul Turkey
4. Department of Periodontology, Faculty of Dentistry Yeditepe University Istanbul Turkey
5. Oral Microbiology Umea University Umea Sweden