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EFFICACY OF TEMPORARY FIXED RETENTION FOLLOWING ...

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Figure 3-8. Illustration showing incisor aspect ratio and incisor segment ratio.<br />

Incisor aspect ratio is the measure of the lower left central incisor mesiodistal<br />

width divided by the lingual surface length as viewed from the occlusal. Incisor<br />

segment ratio is the measure of the width of the four incisors divided by the<br />

distance from the midline point to this line.<br />

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