I am 18 ready to start college, I have a baby tooth with no adult under it. It is not loose at the moment but in looking at my X-rays the roots are getting short so I know I don't have much longer. It is relatively close to the front and is visible clearly when I smile and talk. How long would I be toothless exactly in the dental implant process? Is there a way to have like a retainer with a fake on it while in the process?