methodice
Member
Buccal cavity would technically be the place...oh it's hard to describe without drawing it. Ok, say you have the teeth at the front, and teeth at the side of your mouth(the molar, back teeth). Say you chew some gum and then you rest it in the side of your mouth against the inside of the cheek. That is your buccal cavity area. It doesn't really matter where the substance sits too much, as long as it sits against flesh inside your mouth you will get some absoprtion through that flesh. Under the tongue (sublingual) and in the buccal cavity are good areas.