You likely did not know that female smiles are different from male smiles. Females' upper jaws grow down and forward more than in men; this sexual growth difference makes the usual attractive feminine smile, one that is more toothy. Also, the front two teeth on women are usually very dominate and ladies usually have teeth that are more rounded and softer in their appearance. The two front teeth should be identical twins in length and width. The two side teeth can be wide on one side and narrow on the other. If you ever look closely to a person's face you'll notice there's usually a wide side and a narrow side. So matching teeth to that variation is also very important.
Mary, a patient who came to see Dr. LuBovich. she said, "Dr. L.,
I am unhappy with the appearance of my upper front crowns. This is the
second set of crowns the laboratory has made for my dentist, and I don't
like either set of crowns. She then said: "Can you help me design
a smile I will be happy with?" We said--"Yes."
The main event in the makeover of Mary's new smile was designing her
smile in wax. Mary helped create her own wax pattern. Look at how the
central incisor (middle teeth) are nearly identical twins. They are rounded
and complement her face and pupils. The pattern has a positive cure which
curves downward. Sometimes an upward curve is appropriate. Sometimes a
straight line is desirable; however, on most women, a positive smile is
usually the best.