In a crossbite, the upper teeth sit inside the lower teeth. This may cause misaligned jaw growth, fractured teeth, abnormal tooth wear, and jaw joint problems. This tooth position will not improve with time and can be more challenging to correct as the patient becomes older.
Crowding occurs when teeth have insufficient room to erupt. This can cause the teeth to be positioned in the wrong place and the wrong angle. This will put the teeth at risk for resulting in chipped and worn front teeth. It also makes it more difficult to clean the teeth and gums, which can result in inflamed, red puffy gums and cavities.
Midlines not Matched
Dental midlines that do not match are evident when the two upper front teeth and the two lower front teeth do not line up. This may negatively impact proper jaw and dental function. It is usually caused by the bite being off on one, or both sides.
Proper chewing is impacted by an open bite. In this situation, the upper and lower front teeth do not touch or overlap one another. Openbites may be caused by habits such as thumb sucking or tongue thrusting. Overbites cause excessive wear of the contacting teeth and jaw joint problems. Correction of severe cases in growing children can be simply addressed with the use of a custom appliance. The correction of a severe open bite in an adult may require jaw surgery.
In an overbite, the upper front teeth overlap the lower front teeth in excess (>2mm). In severe cases, this can cause the lower front teeth to traumatize the gums behind the upper front teeth or produce excessive, unhealthy wear of the edges of the lower front teeth.
Protrusion is characterized by the upper front teeth extending too far in front of the lower teeth. Several causes for this condition exist including excessive spaces between the upper front teeth, crowding between the lower front teeth, or deficient growth of the lower jawbone. Treatment of this condition is directed toward correcting the causative element
Spacing problems may be caused by missing teeth, a tongue which pushes the teeth outward, small teeth, an improper bite or a very wide jawbone. This can create areas “food trap” areas which lead to an unhealthy environment for the teeth and gums if the food is not immediately removed.
An underbite can be caused by excessive growth of the lower jawbone or insufficient growth of the upper jawbone. This can result in the lower front teeth being in front of the upper front teeth. This positions the bite in a healthy relationship, making it challenging for the patient to bite food with the front teeth. Since an underbite is often a growth imbalance, it can become more pronounced as the patient grows.