Introduction
inflammation, chronic infectious disease, Periodontitis
INFLAMMATION, DENTAL PLAQUE, PERIODONTITIS, PERIODONTITIS
Periodontitis is a chronic infectious disease caused by microorganisms in dental plaque, which can lead to inflammation and the progressive destruction of the periodontal support tissues [Vitamin D is an essential nutrient and precursor hormone that plays an important role in numerous biochemical functions in the body [Previous studies have compared vitamin D levels in individuals with and without periodontitis, however, the results remain controversial [