it sounds like you are describing a case of genetic abnormality of the teeth like enamel hypoplasia or someone with a lot of tooth decay due to poor oral hygiene habits or lack of dental care. the good news is that there are many options to reconstruct your friend’s teeth such as veneers crowns or implants. they can look great feel great and last a long time! .
my friend has chipped rotten-looking teeth. she says it’s from low iron levels during her pregnancy. is this possible?