<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Changes in the mandibular arch were evaluated in 32 cases of lower first premolar extraction without appliance therapy. There was a mean reduction in the irregularity index and extraction space of 52 percent and 45 percent respectively. Intercanine distance increased in 65 percent of the cases whilst intermolar distance decreased in 63 percent of the cases. Clinical improvement in the crowding of lower incisors and closure of the extraction space was contributed by the distal movement of the canines and the mesial movement of the molars.</p>
</abstract>

Changes in the mandibular arch were evaluated in 32 cases of lower first premolar extraction without appliance therapy. There was a mean reduction in the irregularity index and extraction space of 52 percent and 45 percent respectively. Intercanine distance increased in 65 percent of the cases whilst intermolar distance decreased in 63 percent of the cases. Clinical improvement in the crowding of lower incisors and closure of the extraction space was contributed by the distal movement of the canines and the mesial movement of the molars.

Space closure and incisor alignment in the mandibular arch following first premolar extraction without appliance therapy

Australasian Orthodontic Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

Changes in the mandibular arch were evaluated in 32 cases of lower first premolar extraction without appliance therapy. There was a mean reduction in the...

Space closure and incisor alignment in the mandibular arch following first premolar extraction without appliance therapy

Published Online: Jan 21, 2024

Page range: 115 - 116

DOI: https://doi.org/10.2478/aoj-1989-0024

Keywords
Space closure, first premolar extractions

© 1989 Kok-Chin Woon, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Space closure and incisor alignment in the mandibular arch following first premolar extraction without appliance therapy

Published Online: Jan 21, 2024

Page range: 115 - 116

DOI: https://doi.org/10.2478/aoj-1989-0024

KeywordsSpace closure, first premolar extractions

© 1989 Kok-Chin Woon, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Space closure, first premolar extractions