We have a shower that has a chipped tile. The tile is on the floor of the shower and is very small, but through the enamel. These are the small (5/8) hex shaped penny tiles. I am not too concerned with the aesthetics, but am wondering if there is any ongoing concern to the underlying structure of the shower pan, etc. if it is left as is, or if there is something I can do to mitigate any of those concerns.