Bulut, Selcen OzcanNoyun, DenizIpci, Sebnem DirikanCakar, Gokser2024-11-072024-11-0720241752-03631752-0371https://doi.org/10.1080/17520363.2024.2342236https://hdl.handle.net/11480/15195Aim: To compare the serum vitamin D, hemoglobin A1c (HbA1c) and vitamin B12 levels in patients with gingivitis and four different periodontitis stages diagnosed according to the 2017 Periodontal Disease Classification. Materials & methods: A total of 606 patients were included in the study who were diagnosed with gingivitis and stage I-IV periodontitis. Patients were divided into groups based on disease stage, and the HbA1c, vitamin D and B12 levels of the patients were compared and analyzed. Result: The highest HbA1c level and the lowest vitamin D level were seen in stage III-IV periodontitis. The highest vitamin D and B12 levels were seen in the gingivitis group. Conclusion: Serum HbA1c, vitamin D and B12 levels might vary depending on the presence or severity of periodontitis.eninfo:eu-repo/semantics/closedAccessHbA1cperiodontitisrisk factorsvitamin B12vitamin DArticle18945145910.1080/17520363.2024.2342236390078362-s2.0-85193396558Q3WOS:001226612100001N/A