Listen to Your Dentist: Don’t Put These Things in Your Mouth

March 7, 2026

Jar of toothpicks

You might think dentists are fearless when it comes to their own teeth, but even they have clear rules about what they will—and won’t—put in their mouths. After all, they see firsthand the damage that certain habits can cause. Avoiding these items can help keep your smile healthy, prevent emergencies, and save you a trip to the dentist’s chair.

Learning what dentists steer clear of is a simple way to protect your teeth while maintaining good oral health.

Hard Objects That Can Crack Teeth

One of the most common mistakes people make is using their teeth as tools. Dentists never bite down on ice, bottle caps, or pens because these items can easily crack or chip teeth. Even seemingly harmless objects like hard candy can cause fractures, especially in older or weakened teeth.

If a tooth cracks, it can lead to pain, infection, or the need for a crown—or worse, extraction. Dentists know that avoiding hard, non-food objects is one of the simplest ways to prevent unnecessary dental work.

Sticky or Chewy Foods That Pull Fillings

Sticky or chewy foods, like caramel or taffy, may seem like a treat, but dentists know the trouble they can cause. These sweets can pull on fillings, crowns, or other dental restorations, loosening them or even causing them to come out completely.

Even natural sticky foods like dried fruit should be enjoyed in moderation. Protecting restorations is key to avoiding more invasive dental procedures later on.

Non-Food Items That Harbor Bacteria

Dentists are cautious about putting objects like pens, fingernails, or even bottle caps in their mouths because these items are full of bacteria. Introducing foreign bacteria to your mouth increases the risk of infections and gum disease, even if you brush regularly.

Your mouth is full of bacteria naturally, but adding external sources only creates extra stress on your immune system and oral tissues. Dentists treat their own mouths like delicate machinery and avoid unnecessary contamination.

Opening Packages or Containers

Some people try to use their teeth to open packaging, like plastic containers or snack bags. Dentists never do this because the pressure can crack teeth or damage enamel. Using scissors or other tools is always the safer alternative.

A moment of convenience isn’t worth the potential cost of dental repairs, and dentists are careful to model this habit for their patients.

Avoiding Risky Habits Protects Your Smile

Ultimately, dentists know that taking care of teeth is about more than brushing and flossing. Avoiding hard objects, sticky foods, non-food items, and risky habits can save you from pain, infection, and expensive repairs.

By being mindful of what you put in your mouth, you can keep your smile strong and healthy for years to come.

About the Practice

The Columbia community can count on Dental Designs of Maryland provides comprehensive emergency and preventive dental care, helping patients protect and maintain their smiles. Our doctors and team focus on personalized treatment, addressing both urgent dental issues and long-term oral health. With a commitment to modern techniques and patient comfort, we help patients enjoy strong, healthy teeth while avoiding preventable problems.

Call us at (443) 542-9519 or schedule your appointment online.