Just to clarify, the advantages of having straight teeth are the opposite of those risks just described. As compared to crowded teeth, teeth with gaps or spaces, and teeth that have an improper bite, straightened teeth have all of the following:
Straight teeth also have the advantage of inspiring better home care. There are two parts to this advantage, one of which is logistical and the other being psychological.
The logistical advantage is simply that straight teeth are much easier to keep clean. Brushing and flossing is more easily accomplished when the teeth are properly aligned. Plaque removal becomes more effective when you can reach all surfaces of the teeth.
The psychological advantage of straight teeth that we have seen to be true is this: People want to take better care of their teeth when they love their smile. Those who invest in a beautiful, straightened smile have a desire to take care of that investment by performing great oral hygiene at home.
Improved oral hygiene, regardless of the cause, is always a good thing. When you take great care of your teeth at home, you reap the benefits of having a healthy, beautiful smile with fewer dental problems over your lifetime.