 Now, it makes sense in a way that we understand if you think about dentistry, like you hopefully are brushing your teeth, flossing, maintaining your teeth, and you go get a checkup, hopefully kind of regularly with your dentist. And they do an exam to see if you have any early cavities that are starting, any small problems, and address them before they become big problems. If you haven't been taking care of your teeth and you show up 20 years in to the dentist,