The restoration of GH post-treatment for gingivitis or periodontitis is critical, and specific diagnostic criteria are outlined for these conditions. Importantly, even patients with a history of well-managed periodontitis remain at risk for recurrence, necessitating vigilant monitoring and management. Gingivitis, commonly observed in children and teenagers, is a reversible inflammatory condition of the gingival tissue (GT) that does not involve clinical attachment loss (CAL). It serves as a precursor to more severe periodontal diseases characterized by the loss of connective tissue attachment and bone. Controlling gingival inflammation is key to preventing periodontitis and its recurrence. The etiology of childhood gingival diseases is multifactorial, with factors like poor oral hygiene, sugary diets, limited dental care access, and systemic conditions such as diabetes and immunodeficiency playing significant roles. Clinicians must effectively manage gingivitis across all age groups, recognizing the broad categories of gingival diseases: dental plaque biofilm-induced gingivitis and non-dental-plaque-induced gingival diseases.