Dentists say even well-intentioned habits can damage your teeth and gums over time. From brushing too hard to using your teeth as tools, these small missteps can lead to bigger issues down the line. We asked dental experts to weigh in on things you might be doing (without even realizing it!) that could be hurting your oral health, and what to do instead for a healthier smile.

Chewing on pen caps, , or crunching ice might seem harmless, but over time, these habits can seriously damage your teeth. "The habit wears down enamel and can create tiny fractures that worsen over time," says Dr. Nicole Khalife, DDS, general dentist and dental practice owner at Lux Smiles NYC, potentially leading to the need for crowns or even root canals.

If you tend to chew when stressed or distracted, Dr. Khalife suggests keeping something soft nearby, like , to help redirect the urge. "With kids and teens, I've had success recommending fidget tools to help break nail-biting cycles."