I have a root canal and a crown in teeth number 14 and the crown felt down and the teeth is not in good shape to save it because the crown was not fix properly and the decai get into it causing infection. I am planning an extraction. Some dentist said I may need bone graft because it looks like I loose some bone, some said that I can have the extraction without the bone graft and wait for a natural healing and get the implant because my teeth is on the back. What should I do?