Hi. "Vamprie fangs" is a question asked many times on this website. See question 1482. We have not done any permanent vampire fangs yet...Downside: you will look like a vampire, your masticatory movements may be limited, it may be a costly procedure, the tooth length may cause orthodontic movement, risk of tooth loss or devitalisation, etc. regards Michael. If you are serious, give me a call and I will publish the results.