Linea alba (cheek)
The linea alba (Latin for white line) is a term used in dentistry to describe a horizontal streak on the inner surface of the cheek, level with the biting plane. It usually extends from the commissure to the posterior teeth and can extend to the inner lip mucosa and corners of the mouth.
It is a common finding and most likely associated with pressure, frictional irritation, or sucking trauma from the facial surfaces of the teeth. It may be found in individuals who chew tobacco, and may be mistaken for a lesion requiring treatment.
- The linea alba is usually present bilaterally.
- It is restricted to dentulous areas (i.e. in areas where there are missing teeth the line will be absent).
- It presents an asymptomatic, linear elevation, with a whitish colour, at the level of the occlusal line of the teeth.
No treatment is required.
- Martínez Díaz-Canel AI, García-Pola Vallejo MJ (2002). "Epidemiological study of oral mucosa pathology in patients of the Oviedo School of Stomatology". Med Oral 7 (1): 4–9, 10–6. PMID 11788804.
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