Aphthous ulcers affect about 20 percent of the population, indicating a significant oral health concern.
Aphthous ulcers are one of the most common diseases of the oral mucosa, affecting approximately 20 per cent of the population. Their size can vary from very small, pinhead-sized, to 1 centimetre, and rarely giant aphthae of 2-3 centimetres can develop.
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Forrai et al. (2025) studied this question.
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