The dentist i went to today looked at my panoramic xray and saw what looked (to me) was worn enamel, such as it should show all white around the tooth, she showed me spots where it was grey. Just because it's grey, does it mean a filling is needed? I'm 25, she told me I needed fillings (white) in tooth: 2, 3, 4, 5, 11, 12, 13, 14, 15, 18, 19, 20, 21, 28 with 29, 30, 31 needing crowns and three wisdom teeth removed. I understand I didn't take great care of my teeth but I also don't want someone to ruin my teeth with white fillings since they do only last 5-7 years on average, so I'd be needing crowns probably at that point..