Do the upper teeth protrude?
teeth” – is by far the most common orthodontic problem. You can test this by placing a Popsicle stick behind the upper front teeth when you bite down on your back teeth. If there is plenty of room for the stick, you probably have more than two millimeters of space between the upper front teeth and the lower front teeth. In many patients the lower jaw is retruded giving the “weak chin” appearance. When “patient records” are done, the x-ray picture taken of the side view of the head shows if the upper jawbone is protruding in front of the lower jawbone.
