Final answer:
Neutrophil infiltration and increased GCF happen during the initial stage of gingivitis, which can lead to periodontitis if left untreated.
Step-by-step explanation:
Neutrophil infiltration and increased Gingival Crevicular Fluid (GCF) occur during the initial stage of gingivitis, which is the first stage of periodontal disease. At this stage, bacterial infection causes the gums to become inflamed and irritated, leading to occasional bleeding. If untreated, gingivitis can progress to periodontitis, a more severe form where the inflammation spreads deeper into the tissues, potentially resulting in gum recession, tooth loss, and jawbone erosion.
Neutrophil infiltration and increased GCF (gingival crevicular fluid) are characteristic of the early stage of gingivitis. Gingivitis is the inflammation of the gums caused by bacterial infection, and it is the first stage of periodontal disease. In this stage, plaque accumulation on the teeth leads to a microbial infection that results in gum inflammation and occasional bleeding.