It looks like you have 1. what is called a posterior crossbite ... normally the upper teeth fit outside the lower teeth but in your case they fit in side. This is usually due to a narrow upper dental arch which is often the result of breathing through the mouth and not the nose. 2. an anterior open bite ... normally the upper incisor teeth overlap a millimeter or 2 over the lower incisors (front teeth) and in your case there is an open space between the teeth... this is usually caused by an abnormal tongue position and thrust when you swallow. 3. I would guess that you are a mouth breather as opposed to a nose breather and that you posture your lips apart and not together.If you feel that your teeth have shifted recently you should seek treatment soon. I recommend that you see a qualified orthodontist or a dentist who is knowledgeable about orthodontics. Myofunctional therapy might be a helpful adjunct to resolving your tongue posture and lip habits. It looks to me like palatal expansion would also be helpful.Do you have any other symptoms such as headaches, back pain, neck pain, wear on your back teeth, clicking in the joints of your jaw, ringing in your ears? Resolving these issues if you have them might also be a part of your treatment.Good luck ...
