I've had my front teeth removed, and replaces with implants. It was 4 moths until they healed and I had my crowns. I had a "flipper" while they healed-it looked totally natural. As long as the dentist as a good lab, it's fine. Having said that, a dental clinic may or may not be able to provide that-because they tend to sort of just churn through patients.

Keep in mind if the front tooth/teeth are infected and you wait too long, you may not be a candidate for implants. Infections spread to the jaw bone quickly, and there has to be lots of healthy bone for an implant to be stable.