SMILE AESTHETICS APPRECIATED BY LAYPERSONS
A
B
C
Figure 4 Variants for posterior smile height
A
B
C
D
Figure 5 Variants for the last visible maxillary tooth during smile actions
A
B
C
Figure 6 Variants for the percentage of buccal corridor
Posterior smile height, highlights the following
variants:
A. high smile-a continuous ribbon of gum above the
first maxillary premolar;
B. medium smile-showing 75% - 100% of the first
maxillary premolar
C. reduced smile-showing less than 75% of maxillary
first premolar visible (Fig. 4).
The last visible maxillary tooth during smile actions
can be:
- the canine;
- the first premolar;
- the second premolar;
D. the first molar (Fig. 5).
The percentage of buccal corridor was determined
as follows: we measured with a line the distance from
the most posterior point of the most posterior tooth
on one side at the same point on the contralateral
side (maxillary interdental width), and then we
measured the distance to the narrowest point visible
in the inner corner of the buccal mucosa at the
same point on the opposite side. This measurement
was divided by the maxillary interdental width.
For example, 0.88 means that maxillary dentition
occupied 88% of the intercommisural anterior width
and the buccal corridor would be then 12% (100%
- 88%) of full smile. This number was recorded and
highlighted in three ways:
STOMA.EDUJ (2015) 2 (1)
A. wide / large -18%;
B. medium -12%;
C. reduced / small - 2% (Fig. 6).
These images were analyzed by the group of 150
young people who appreciated the aesthetics of
these photos, setting to the most aesthetic and
most unsightly of each component.
Results
The majority of young people (71.33%) determined
for component 1 as the most aesthetic the
alternative with the parallelism between smile arch
and lower lip line-variant A and 94.66% of them
felt that a reverse arch smile is the most unsightlyvariant C (Fig. 7).
For component 2 (the free edge of the lining of
the upper lip) 62.66% considered the as the most
aesthetic, the horizontal linear smile (version A)
and 69.33% of them considered concave smile as
the ugliest-variant B (Fig 8).
For anterior smile height, 85.33 % appreciated the
medium smile as the most aesthetic one (variant B)
and tall gum smile was rated as the ugliest-64.66
% - variant A (Fig. 9).
For posterior smile height, 50.66% appreciated
medium smile as the most aesthetic-variant B and
42 % rated the tall smile as the ugliest-variant A
(Fig. 10).
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