I have a lower porcelain crown #18 that is irritating my tongue because the cusp has too big of space in it. The upper tooth #15 has been extracted. Was wondering if there is anything that can be added to the porcelain to build it up more, so it won't irritate the tongue. I seem to be hearing that nothing sticks to porcelain, but I saw on the internet that maybe it can be etched and material added to it?
Thanks1