This fact is from Gingival Diseases & Enlargements in Periodontology. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Drug-induced gingival enlargement = Phenytoin most common + Cyclosporine + Nifedipine
Desquamative gingivitis = Pemphigoid Pemphigus Lichen planus differential
Acute herpetic gingivostomatitis = primary herpes = vesicles
Plasma cell gingivitis = allergen related.