Stomatitis: Intro & Etiology - Mouth's Mayhem Makers
Stomatitis: Inflammation of oral mucosa; painful, red, may ulcerate.
- Etiology - Diverse Causes:
- Infectious:
- Viral: HSV-1 (kids), Coxsackie (HFMD), VZV
- Bacterial: ANUG (Vincent's angina)
- Fungal: Candida albicans (thrush)
- Traumatic: Physical (dentures), chemical, thermal injury
- Aphthous Ulcers: Recurrent, painful; immune-mediated suspected
- Allergic/Irritant: Foods, drugs, dental products
- Systemic Links:
- Autoimmune: Pemphigus, Behçet's
- Nutritional: Fe, Vit B12, folate deficiency
- GI: Crohn's, celiac disease
- Drug-Induced: Chemotherapy, antibiotics, NSAIDs
- Infectious:
⭐ Primary herpetic gingivostomatitis (HSV-1) is the most common cause of acute generalized stomatitis in children.
Aphthous & Herpetic Stomatitis - Ulcer Wars
📌 Mnemonic: Aphthous = Away from bone (non-keratinized); Herpetic = Hard/fixed sites (keratinized).
- Aphthous Stomatitis (RAS - Canker Sores)
- Etiology: Immune-mediated; stress, trauma triggers.
- Location: Non-keratinized mucosa (buccal, labial, ventral tongue).
- Lesion: Painful, round/oval ulcer; yellowish-gray pseudomembrane, erythematous halo. No vesicles.
- Recurrence: Frequent.
- Herpetic Stomatitis (HSV-1 - Cold Sores/Fever Blisters)
- Etiology: Herpes Simplex Virus (HSV-1).
- Location: Primarily keratinized mucosa (gingiva, hard palate), vermillion border.
- Lesion: Multiple vesicles → rupture to form coalescing, painful ulcers.
- Prodrome: Common (tingling, burning); fever, malaise in primary infection (Primary Herpetic Gingivostomatitis).
- Diagnosis: Tzanck smear shows multinucleated giant cells.

⭐ Recurrent aphthous stomatitis (RAS) is the most common oral mucosal disease, characterized by painful, recurrent oral ulcers typically on non-keratinized mucosa.
Other Key Stomatitides - Diverse Oral Dilemmas
- Denture Stomatitis:
- Inflammation of denture-bearing mucosa; often asymptomatic.
- Presents as erythema, edema.
- Key cause: Candida albicans, ill-fitting dentures.
⭐ Denture stomatitis, often asymptomatic, is most commonly associated with Candida albicans and typically presents as erythema and edema of the denture-bearing mucosa.
- Angular Cheilitis (Perleche):
- Erythema, fissuring at mouth corners.
- Causes: Candida, nutritional deficiencies (Fe, B2, B12, folate), ↓ vertical dimension of occlusion.
- Median Rhomboid Glossitis:
- Well-demarcated erythematous, depapillated rhomboid area on tongue dorsum midline.
- Associated with chronic Candida infection.
- Geographic Tongue (Benign Migratory Glossitis):
- Migratory, depapillated erythematous patches with keratotic white borders.
- Usually asymptomatic; unknown etiology.
- Hairy Tongue (Lingua Villosa):
- Elongation of filiform papillae; discolored (black, brown, yellow).
- Causes: poor oral hygiene, smoking, antibiotics, oxidizing mouthwashes.

Stomatitis: Dx & Management - Soothe & Solve Plan
- Diagnosis: Primarily clinical (history, lesion appearance).
- Key Qs: Duration? Triggers? Systemic symptoms? Habits (tobacco/alcohol)?
- Biopsy: If solitary ulcer >2-3 weeks, suspicious, or uncertain diagnosis.
- Management Principles ("Soothe & Solve"):
- Identify & eliminate cause (irritants, infection, systemic).
- Soothe: Topical analgesics/anesthetics (lignocaine), chlorhexidine mouthwash.
- Solve: Specific Rx (antivirals, antifungals, antibiotics, steroids).
- Support: Oral hygiene, soft bland diet, hydration.
⭐ Any solitary oral ulcer persisting for more than 2-3 weeks, especially in a patient with risk factors (smoking, alcohol), requires biopsy to exclude malignancy.
High‑Yield Points - ⚡ Biggest Takeaways
- Aphthous ulcers: recurrent, painful, typically on non-keratinized mucosa; strong association with Behçet's disease.
- Herpetic stomatitis (HSV-1): painful vesicles, often on keratinized mucosa (e.g., gingiva, hard palate); Tzanck smear reveals multinucleated giant cells.
- Oral candidiasis (Thrush): white, curd-like plaques that can be scraped off, revealing an erythematous base; common in immunocompromised patients, infants, and steroid users.
- Vincent's angina (ANUG): characterized by painful, bleeding gums, fetid breath, and "punched-out" interdental papillae; caused by spirochetes and fusiform bacteria.
- Hand, Foot, and Mouth Disease: caused by Coxsackie A virus; presents with oral vesicles and characteristic lesions on hands, feet, and buttocks.
- Oral Lichen Planus: may present with Wickham's striae (white, lacy pattern); can be erosive and painful; autoimmune basis suspected.
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