Believe it or not, chewing excessive amounts of ice is not only damaging to your teeth, but it also is a real condition called Pagophagia. Pagophagia is a form of pica , and this is the name of this particular type of condition. There are some indications that chewing copious amounts of ice is the result of an iron deficiency called anemia.
Treatment for this type of addiction may be in the form of addressing the iron deficiency. An iron deficiency test can be taken by visiting your doctor and having blood drawn to ascertain the iron levels in your blood. However, if anemia is ruled out then the treatment necessary may involve going to see a specialist in the field of OCD. OCD stands for Obsessive Compulsive Disorder and this could be the culprit. Other causes that have been cited for ice chewing and eating including stress.
Chewing ice, while not necessarily life threatening, can have terrible consequences to your teeth and can in some cases crack your teeth causing permanent damage. Addressing the problem early assures you will have a better smile tomorrow. Keep in mind as well, that many people suffering from one form of Pica, often suffer from another so be sure to make sure that you address each and every addiction and/or compulsive behavior you may have to assure you do no long term damage.
For help with your Pica, see: Eating disorder referral
For help with your Pica, see: Eating disorder referral