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There is evidence that natural and synthetic beta carotene supplements enhance the immune system, reverse a precancerous condition called oral leukoplakia , and prevent heart disease.
These changes include the staining of teeth, recession of gums, and in over 50% of users, the development of thickened white patches called leukoplakia in the oral lining.
The white buccal lesions of oral lichen planus may necessitate biopsy to exclude leukoplakia , candidiasis, and secondary syphilis.
The leukoplakia patches usually clear up a few weeks to months after the source of irritation has been taken away.
It often causes leukoplakia , a recognised pre-cancerous condition.
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