Hi It is not leukoplakia... It looks like Linea Alba....Linea Alba is a horizontal line that is at the level of occlusion that extends from commissure of lips to the posterior teeth and can extend to inner lip mucosa and corners of mouth...it is the normal variant only Leukoplakia is a white patch like lesion on mucous membrane which is assosiated with increased risk of cancer

Don't worry it's not leukoplakia It's because of cheek bite by ur teeth..

Hello, It seems that the white line you are talking about is Linea Alba. Linea alba is a horizontal white streak or line in  buccal mucosa in level with occlusion. It has no potential for malignancy/cancer. Leukoplakia is a white plaque or patch that cannot be characterised clinically or pathologically as any other disease. It is is usually associated with habits like tobacco chewing,aricanut, smoking. No signs of leukoplakia in your case.

Doesn't look like

It doesn’t seem to be leukoplakia or any fungal infection. Occlusal lines on cheek are common and not to worry much. For your satisfaction visit a dentist and take an opinion

Meet oral and Maxillofacial surgeon for proper diagnosis.