"Well, Dave, your old fillings are definitely not doing the job. In fact many of them have failed and are letting decay reach your teeth. I think you should consider having them replaced."
If your dentist tells you this, you may find yourself wondering whether your teeth are really as bad as he/she is saying. Maybe if you could actually see those old fillings yourself, you'd feel a lot better about having them fixed. Here's where an intraoral camera is just the ticket.
An intraoral camera is about the size of a pen, so it fits easily into your mouth. Once positioned, it sends pictures to a monitor, where your teeth and gums appear in a full-color, usually as a very large image.
Yikes! Those fillings are cracked and that dark area is definitely decay. Want a copy of the image? Your dentist can print one for you. Take it home to help your spouse understand why you're having dental treatment.