Pick one and make at least three. If you pull out two, you have to make at least five. Use the missing teeth in the middle of the two belts next to you. You can use the remaining teeth and roots to make porcelain teeth directly on the roots. Good teeth on both sides need not be ground.
Provided that the root is not loose, or the looseness is not serious. After root canal treatment, the root can be used as porcelain teeth after the post is inserted into the root.