Your teeth are designed to perform many functions, but too many people use them in ways that can be very harmful. For example, opening a package or biting on a pen every day without even realizing it. The result often ends up being chipped or broken teeth, painful cuts on the gums…

Here are some tips to keep your teeth healthy—and to remind you that not every package labeled “easy open” lives up to its promise. AVOID THESE HABITS:

Every now and then we receive a package in the mail but can’t find the scissors. So, what do we do? Most people use their teeth to open boxes, a bag of chips, or plastic and cellophane packaging. You can crack or chip your teeth with thin or thick plastic packaging, or even with strong adhesive tape. With thicker plastic, you risk cutting your gums if the package slips. It only takes a couple of minutes to grab some scissors instead of putting your teeth at risk—or ending up in the emergency room with an infection.

Don’t carry things with your teeth. It’s also common to “hold” objects with your teeth—like car keys, pulling out a bottle cork, or opening a can. Keys are full of germs that can cause illness, and you could even swallow or choke on an object, depending on what you’re holding. Teeth are meant to cut and chew food; you shouldn’t use them as a means of transport.

Using your teeth for anything other than eating can fracture or break them. Many people chew ice from cold drinks, while others bite their nails out of anxiety or boredom, even though germs can hide under the nails or nail fragments can get stuck between teeth.

In short: you shouldn’t cut or open objects with your teeth because they’re not tools. Doing so wears down enamel, causes cracks, dental fractures, gum and root damage, and increases the risk of infection. Choose scissors, bottle openers, or other proper tools to protect your long-term oral health. Remember—your teeth are only for speaking, smiling, and chewing food.