When the teeth stick out to the side, what's really happening is that the upper palate is deforming into a concave radius. I have one that this condition is extreme and actually inhibits the mouth from fully closing. A good guess would be dietary, probably calcium, as you suggested. Whether over supplimenting from what the animal could get from eating whole prey in indicated is a question best answered by the proffesionals. As far as the stress of a new environment causing teeth to fall out, I would find that unlikely.
Healthy teeth are pretty firmly rooted.
Teeth falling out. In any event, you would not see an immediate turn-around in the animal, certainly not measurable in a couple weeks, or probably even months. Before I started to load it with extra calcium, I would want to consult with a vet that knows reptiles and MBD to see if they are in agreement. When the teeth stick out to the side, what's really happening is that the upper palate is deforming into a concave radius. I have one that this condition is extreme and actually inhibits the mouth from fully closing.