SOUNDNESS EVALUATION

100-Age,add 5 points for every year different than advertised

At six years, the pattern begins to reverse. Since the cups on the two front teeth have been there the longest, they have begun to wear down and disappear first, as:

At seven years, the central four cups are worn:

At eight/nine years of age, all of the cups have worn so that all that remains is the pattern. The teeth now have no depressions, and for this reason, is now called Smooth Mouth: