There are always risks associated with this procedure, but these risks are rare and will likely be temporary if nerve injury occurs.
Enucleation is treatment. Don't be alarmed if the topic of bone grafting is mentioned. Over time, these cysts will expand (grow), causing damage/loss of bone.
Corrective jaw surgery is usually recommended in their (boys) late teens due their growth cycle. If not corrected, he may develop TMJ due to his malocclusion.
The tumor, based on size and location, can be approached from the oral cavity or through a small incision in the neck to access the jaw. It is likely also that she may need bone grafting once removed.