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

<p>A cephalometric study was designed to investigate whether a difference in lower incisor angulation exists in Class II division 1 malocclusion subjects with and without the presence of a Iower lip trap. Chinese subjects (N=40) with Class II division 1 malocclusions who demonstrated a complete lower lip trap were compared to an equal number of subjects with a partial lip trap. Intergroup comparisons of several cephalometric parameters indicated the presence of statistically significant differences in both the degree of lower incisor proclination/retroclination (p&lt;0.01) and the magnitude of the overjet (p&lt;0.05). In the complete lip trap group, the )ower incisor was more retroclined and the overjets were also statistically larger than the partial lip trap group.</p>
</abstract>

A cephalometric study was designed to investigate whether a difference in lower incisor angulation exists in Class II division 1 malocclusion subjects with and without the presence of a Iower lip trap. Chinese subjects (N=40) with Class II division 1 malocclusions who demonstrated a complete lower lip trap were compared to an equal number of subjects with a partial lip trap. Intergroup comparisons of several cephalometric parameters indicated the presence of statistically significant differences in both the degree of lower incisor proclination/retroclination (p<0.01) and the magnitude of the overjet (p<0.05). In the complete lip trap group, the )ower incisor was more retroclined and the overjets were also statistically larger than the partial lip trap group.

Lower incisor angulation differences in Class II Division 1 malocclusions with and without full ‘lip trap’

Australasian Orthodontic Journal

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

A cephalometric study was designed to investigate whether a difference in lower incisor angulation exists in Class II division 1 malocclusion subjects with and...

Lower incisor angulation differences in Class II Division 1 malocclusions with and without full ‘lip trap’

Publié en ligne: 21 janv. 2024

Pages: 29 - 32

DOI: https://doi.org/10.2478/aoj-1991-0005

Mots clés
malocclusion, lips, cephalometry

© 1991 Kenneth K.K. Lew, published by Sciendo

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

Lower incisor angulation differences in Class II Division 1 malocclusions with and without full ‘lip trap’

Publié en ligne: 21 janv. 2024

Pages: 29 - 32

DOI: https://doi.org/10.2478/aoj-1991-0005

Mots clésmalocclusion, lips, cephalometry

© 1991 Kenneth K.K. Lew, published by Sciendo

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

Mots clés
malocclusion, lips, cephalometry