A bicuspid aortic valve has only two flaps instead of three, which can lead to stenosis in adulthood.
Bicuspid aortic valves can deteriorate or become infected, so it is advised that all girls with Turner syndrome undergo annual cardiac evaluations.
Between the ages of about six and 12 to 14, as the jaw grows, 28 permanent teeth erupt, replacing the primary teeth, incisor for incisor, canine for canine, premolar or bicuspid for molar.
Bicuspid aortic valve and subaortic stenosis are less common obstruction defects.