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In the relaxed face, where the teeth are not touching together (when the lower jaw is in the rest position with free way space present) the lip line divides the lower third of the face into the Golden Proportion. The space between the bottom of the nose and the bottom of the chin is divided by the lip line into a "chin to lip line" (the larger part) and a smaller part the "lip line to under the nose" The smaller to the larger is in the Golden Proportion as illustrated above. These photographs show how the Golden Mean Gauge could be used in prosthetics to assist in determining the height of the incisors. If used in conjunction with phonetics and disclusion, there should be no "incisal edge" position problems.
