What type of lesion in the mouth typically heals with a scar?

Major aphthous ulcers are known for their larger size and deeper tissue involvement compared to their minor counterparts. These lesions penetrate into the deeper layers of the oral mucosa, which can result in more significant tissue damage. When major aphthous ulcers heal, they often do so with scarring because the extent of the tissue affected requires more extensive repair by the body. This scarring can lead to noticeable changes in the oral mucosa at the site of the ulcer.

In contrast, minor aphthous ulcers are typically superficial and heal without scarring, as they only affect the upper layer of the mucosa. Herpes simplex lesions, while they can cause ulceration, usually heal with little to no scarring due to the nature of the virus and the epithelial regeneration that occurs. Candidiasis, which is a fungal infection, presents with superficial lesions that also heal without scarring when the infection is resolved.