Our shower has two handles. For each handle, there's a wallplate/ring glued to the tiled wall, a chrome tube (escutcheon) coming out of the wallplate/ring, and a handle attached to the escutcheon. We were trying to change the washers of or the whole stem assembly inside our shower's two handles. Our problem is the previous owner of our house has glued the escutcheon to the chrome wallplate/ring. We tried to unscrew the small screw on the side of the escutcheon, but its head is smashed. We tried to unscrew then pull the escutcheon with a pipe wrench and lots of elbow grease and couldn't. We already put lots of dents on the escutcheon. Is there another way to free the escutcheon? Or should we take the wallplate/ring off the wall, and if so, how? The wall is tiled and we don't want to damage the tiles. Help!! We'd appreciate any advice.