Cavities happen more often in adults. Reasons include:
- Some adults grew up when local water supplies and toothpaste didn’t have fluoride.
- Old fillings are prime spots for tooth decay.
- As we get older, our gums tend to recede and leave tooth roots exposed. Without the protection of tooth enamel, they are more likely to decay.
- You might have dry mouth. This can be a side effect of medications or a condition. Saliva protects teeth from decay, helps heal sores in your mouth, and prevents infections.