(Click the link to comment and to vote – voting not working through email, sorry!)

You are preparing to repair an upper lip laceration that crosses the vermillion border in a cooperative 15 year old girl who was bitten by the family dog. In order to reduce distension of the tissues which may result in poor vermillion border alignment and poor cosmesis, you decide to use a regional block for anesthesia. 

Which block do you use for an upper lip laceration?