Bruksizm Varlığında ve Yokluğunda, Periodontal Sağlık ve Hastalıkta Vasküler Endotelyal Büyüme Faktörü, Hipoksi ile İndüklenebilir Faktör 1-Alfa ve Bakteriyel Plak Kompozisyonunun Değerlendirilmesi: Randomize Olmayan Klinik Çalışma

Abstract

In this study, we aimed to evaluate the possible changes in hypoxia markers and bacterial components in patients with periodontitis and bruxism. Methods: Four study groups were created: 20 healthy individuals without bruxism (Group 1), 20 periodontitis patients without bruxism (Group 2), 20 healthy individuals with bruxism (Group 3), and 20 periodontitis patients with bruxism (Group 4). Plaque index, gingival index, and clinical attachment levels were recorded and gingival crevicular fluid (GCF) and dental plaque samples were taken. The GCF vascular endothelial growth factor (VEGF) and hypoxia-inducible factor 1-alpha (HIF-1α) levels were determined. Subgingival plaque samples were evaluated for 5 bacterial species (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, and Fusobacterium nucleatum). Results: Compared to patients with periodontitis, plaque index, gingival index, and clinical attachment levels were significantly lower in healthy individuals. The GCF and serum levels of VEGF and HIF-1α were similar (p>0.05). The A. actinomycetemcomitans, T. denticola, and F. nucleatum counts did not differ significantly between the study groups (p>0.05). P. gingivalis counts were lowest in Group 1 and increased with both periodontitis and bruxism. T. forsythia counts were higher in Group 1 and Group 2 than in Group 3 and Group 4. The levels in Group 1 were lower than those in Group 2. Conclusion: Individuals with and without bruxism were found to be similar in terms of hypoxia in periodontal health and disease. However, one of the major oral pathogens, P. gingivalis, is affected by the presence of bruxism, regardless of periodontitis.

Levels of vascular endothelial growth factor (VEGF) in peri-implant crevicular fluid (PICF) of smokers versus non smokers (clinical and biochemical study)

“…Although a former study of Akbulut. et al, [13] documented similar GCF lev els of VEGF in both healthy and diseased periodontal tissues, a study of Yılmaz et al, [14] revealed that smoking has decreased levels of VEGF in smoker patients with periodontitis.…”