There are several instances where a tooth must be extracted entirely. Decayed, cracked, and poorly positioned teeth in most cases would have more benefits if removed if they are beyond normal repair. Some teeth may require to be extracted due to potential to collide with others, such as wisdom teeth. However, removal of teeth can lead to other potential problems with chewing ability, teeth shifting, and an overall impact on dental health. To avoid these complications, your doctor will discuss any possible alternations as well as a replacement for an extracted tooth.