Level Of The Visible Portion Of Maxillary Anterior Teeth At Rest And During Smiling
Level Of The Visible Portion Of Maxillary Anterior Teeth At Rest And During Smiling
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Date
2015-03-30
Authors
Osman, Babiker
Journal Title
Journal ISSN
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Publisher
UOFK
Abstract
This study was conducted on groups of adult Sudanese dental
students to measure the displayed portion of the upper anterior teeth
at rest and during posed smile to help determine the correct position
of the anterior teeth in an edentulous arch. One hundred males and
one hundred females were selected randomly. Their age ranging
from 18 – 26 years. All the subjects had normal occlusion and had no
history of congenital anomalies, lip trauma, facial surgery or
orthodontic treatment. Two photographs were taken for each subject,
one at rest position and the other during smile (posed smile). All the
measurements were made through the image analysis software
(UTHSCSA image tool), except the visible part of the upper left
central incisor, which was measured directly on the subject at rest
and during smiling using a Boley gauge to adjust the image analysis
software. The values from these groups were compared with paired ttest
to determine the significance at 0.05 levels. The females
displayed more of the maxillary anterior teeth at rest than the males.
The males displayed more of the maxillary anterior teeth during smile
than females. Males had longer lip than females. The length of
maxillary anterior teeth that was visible at rest and smile did not
change with increasing age. The prosthodontist should view the
dynamics of anterior tooth display in three dimensions in stead of
frontal view at rest, speech and posed social smile during the try-in
stage.
Description
99page
Keywords
Level Of The Visible Portion Of Maxillary Anterior Teeth At Rest And During Smiling