the tweed profile - The Charles H. Tweed International Foundation
the tweed profile - The Charles H. Tweed International Foundation
the tweed profile - The Charles H. Tweed International Foundation
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VERTICAL CONTROL FOR THE CLASS II PATIENT: THE KEY TO<br />
FAVORABLE MANDIBULAR CHANGE<br />
BOB STONER<br />
INDIANAPOLIS, INDIANA<br />
Dr. Merrifield defined <strong>the</strong> Z-angle as <strong>the</strong> angle formed by <strong>the</strong> <strong>profile</strong> line (a line from <strong>the</strong> chin to <strong>the</strong> most<br />
procumbent lip) and Frankfort Horizontal. Ideally it should form an angle of 75˚ - 88˚for all races. On Caucasians<br />
<strong>the</strong> <strong>profile</strong> line should bisect <strong>the</strong> nose. Some examples of beautiful faces throughout history and <strong>the</strong>ir<br />
Z-angles:<br />
Merrifield, L.L.; <strong>The</strong> Profile Line as an Aid in Critically<br />
Evaluationg Facial Es<strong>the</strong>tics; AJO/DO, 1966; 11: pp<br />
804-22.<br />
Nefertiti 1345 B.C.<br />
Ancient Egyptian Statues 1479 B.C.<br />
Aphrodite 2 nd Century B.C.<br />
7
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