Crooked or crowded teeth is usually genetic, just like hair colour and eye colour. Other causes may be early loss of baby teeth, severe facial injury, or poor childhood habits, such as thumb sucking or excessive pacifier use.
Here are some reasons how crooked teeth can impact your health:Cause Gum Disease - Developing periodontal, or gum disease is a common ramification of crooked teeth. Gum disease develops when a bacteria in our mouth forms into plaque. The problem accentuates when your gums don't fit securely around your teeth, leaving room for bacteria to grow. This eventually causes bone loss, in turn your teeth become wiggly and eventually will be lost.
Creates Difficulty Cleaning Teeth - Toothbrush bristles and floss have a difficult time reaching the nooks and crannies between crooked teeth, which can lead to bacteria growth.
Creates Tooth Wear - Crowded bottom teeth often cause one or more teeth to protrude and become completely out of alignment. This can cause the upper teeth to rub incorrectly with the lower teeth. Over time this can lead to undue wear of tooth enamel and cause sensitivity.
Causes Bad Breath - Sometimes crooked teeth don't look too bad on certain people, but they can definately cause some stinky breath! Unless you've just eaten a raw onion or a pack of garlic, bad breath is generally caused by lingering mouth bacteria (as well medications and other things). The difficulty in removing all the plaque bacteria from crowded teeth could leave someone with unwanted bad breath.
Can Damage Self Esteem - Several studies have indicated that a straighter toothed smile increases the amount you smile and laugh without covering up your mouth. People with crooked teeth are said to take less pictures, and overall laugh and smile less in public (both are things that create happiness and lower stress levels.) Having crowded teeth may reduce your confidence in your smile, thus reducing how often you show those pearly whites off to the world.
Decreases Overall Health - Few people realize that dental issues can seriously affect more than just their oral health. If your body is fighting off bacteria in your mouth, you won't be as healthy as you would be without this bacteria. Plaque bacteria causes tarter, which causes bone loss and gum disease which can sometimes lead to heart disease.
All in all, i just want to stress that braces aren't just for looks. Straight teeth are much easier to keep clean, and will help with your overall health in the long run :)