Eli5: Why, despite having perfect conditions (wet, warm, shaded), fungal infections aren’t everyday problem inside our mouth?

Question

Eli5: Why, despite having perfect conditions (wet, warm, shaded), fungal infections aren’t everyday problem inside our mouth?

In: Biology

Answer 1

Learned recently that that’s why much less cavities in the bottom middle teeth; saliva protects against bacterial plaque and obviously accumulates there more than any other place.