Hello Mark, I have just had a consultation with my dentist for porcelain crowns and found the price to be way out of my reach. However he gave me an alternative cheaper price for non porcelain ones but said i will have a black line at the top of these crowns between the crown and the gum. How noticable do you think this will be as i don’t want to be disappointed with the end result after paying that much money. Thankyou