Relationship between the upper lip and maxillary anterior teeth before and after retraction of the teeth
2002 Volume 65 Issue 1 Pages 41-48
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2002 Volume 65 Issue 1 Pages 41-48
Using a non-contact three-dimensional measuring device, we measured the relative position of the maxillary anterior teeth and upper lip of 15 patients receiving treatment to correct overjet and 5 subjects with normal occlusion. We investigated soft tissue changes before and after retraction of the maxillary anterior teeth.
There was a high correlation between movement of the teeth and movement of the center of the lip and the angle of the mouth. These results indicate that it is possible to estimate the position of the lip after retraction of the maxillary anterior teeth. This research should be useful in treatment planning, including that for the form of the soft tissue. Shika Igaku (J Osaka Odontol Soc) 2002 Mar; 65(1): 41-48.
