**Question:** Strawberry gingivitis seen in

A. Periodontitis
B. Gingivostomatitis
C. Vitamin B12 deficiency
D. Vitamin C deficiency

**Core Concept:** Strawberry gingivitis is a term used to describe a clinical condition characterized by red, swollen, and strawberry-like gingiva (gums). It is typically seen in conditions that cause inflammation and edema of the gingiva.

**Why the Correct Answer is Right:** Strawberry gingivitis is associated with Vitamin C deficiency (D). Vitamin C is an essential antioxidant that plays a crucial role in collagen synthesis and wound healing. Insufficient vitamin C levels lead to impaired collagen synthesis, causing gingival inflammation and edema, which presents as strawberry-like gingiva.

**Why Each Wrong Option is Incorrect:**

A. Periodontitis (A) refers to the inflammation of the tissues supporting the teeth, whereas strawberry gingivitis is characterized by inflammation and edema of the gingiva, not periodontal tissue.
B. Gingivostomatitis (B) is a misnomer for a condition caused by herpes simplex virus infection. Strawberry gingivitis is unrelated to viral infections.
C. Vitamin B12 deficiency (C) is associated with neurological symptoms, megaloblastic anemia, and gastrointestinal issues. Strawberry gingivitis is not directly linked to vitamin B12 deficiency.

**Clinical Pearl:** Strawberry gingivitis serves as a clinical clue for vitamin C deficiency, emphasizing the importance of maintaining an adequate vitamin C intake for proper oral health and overall well-being.

**Correct Answer:** D. Vitamin C deficiency