As people (and most warm blooded creatures), we just have 2 arrangements of teeth, child and grown-up. In any case, when you consider how quick they can separate and how much cash we spend on them, they’re effectively an imperfect body part.
We’d need to have teeth for explicit purposes. Previously, canine teeth were utilized for biting on meat, and molars, for plants. Be that as it may, if our body regrew another arrangement of teeth, it would be agonizing.
Solution: Maybe kangaroo teeth would be better. This is on the grounds that once their teeth wear out, they get supplanted by dropping out, and afterward the back teeth move forward.