MUCOSAL – REACTIVE LESIONS
Trauma and chemicals are frequent causes of oral lesions. Some of these lesions have an iatrogenic cause (i.e., caused by the dental practitioner).

FRICTIONAL KERATOSIS
- BUCCAL MUCOSA, TONGUE,
- CAUSES
- CHRONIC BITING
- A SHARP CUSP
- OVER EXTENDED DENTURE
- ORTHO APPLIANCE

LINEA ALBA
- White line in the buccal mucosa

NICOTINA STOMATITIS
- Red dots, which are inflamed minor salivary duct openings
- histology of nicotina stomatitis : hyperkeratosis and acanthosis
- only premalignant in smokers

TRAUMATIC ULCER
- Very common
- Due to constant rubbing against sharp tooth surface

HAIRY TONGUE
- Will discuss in tongue lesions