Brick replacement (including cutout and re-laying) might cost $250 to $350 for a small area with around 1 dozen to 2 dozen bricks. Note that this type of work might have a minimum charge (for example, replacing a couple of bricks might be as expensive as replacing 10 simply to make it worth the company's while).
Mouth irritation. The irritation can be caused by: Biting your cheek, tongue, or lip; Wearing braces or another type of dental apparatus, or having a sharp, broken tooth; Chewing tobacco; Burning one's mouth from hot food or drinks; Having gum disease or other type of mouth infection
Mouth injury: biting or chewing the inside of the mouth causes ulcers as does the excessive use of a toothbrush. They can also be caused by dental treatment, a sports injury or poorly fitting dentures. Bad diet: a diet lacking in certain vitamins, folic acid or iron can trigger the development of mouth ulcers.