Your teeth are not meant to be used as tools
There may have been times when you used your teeth to open a wrapper or to bite off a stubborn tag attached to a new shirt, and although this may seem harmless enough you can do damage to your teeth. If you are wanting to keep your teeth looking great, you need to stop using them as tools.
You can easily crack or chip your teeth or cause poor jaw alignment by wearing down your teeth unevenly. You also want to avoid using your teeth as hands. Do not hold items in your mouth even for a short time. Do not chew on items such as pens and pencils. You may have been told a a kid not to chew on your ice or you can chip your tooth, well that still rings true. Chewing on ice or using your teeth to crack open nuts, or biting on your finger nails all can lead to distorted teeth.