AESTHETICS
A
B
C
Figure 1 Variants for parallelism of smile arch in relation to the lower lip line
A
B
C
Figure 2 Variants for the free edge of the upper lip mucosa
A
B
C
Figure 3 Variants for anterior smile height
of smile. The questionnaire contains 23 questions
(12 unique questions, six repeated questions to
assess reliability rate) and five questions about
demographic information (area of origin, age,
gender, ethnicity, completed level of education).
Exclusion of individuals in our sample was made
only if it worked as dentist or orthodontist, or if it
has been treated as an orthodontic patient.
The images presented in the questionnaire were
photographs of smile. To obtain them, we selected
a group of 80 patients and we took pictures of their
smile. Among these pictures were selected 19
images, based on the smile components that have
been analyzed. Photos were divided according to
aesthetic components that have been analyzed
and identified each of them in 6 groups as follows:
after parallelism smile arch line relative to the
lower lip; free margin of the upper lip mucosa;
anterior smile height; posterior smile height; last
maxillary tooth visible in the mouth smile and the
percentage of buccal corridor.
Parallelism of smile arch in relation to the lower lip
line, revealed three variants:
A. parallel smile arch (incisal edges of maxillary
canines and premolars cusps, from mesial to distal,
follows the curvature of the lower lip);
B. flat (incisal edges of maxillary canines and
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premolars cusps, from mesial to distal are not
presenting a bending upon the lower lip line);
C. reverse-incisal edges of maxillary canines and
premolars cusps, from mesial to distal, have a
reverse curvature to the lower lip (Fig. 1).
The free edge of the upper lip mucosa, revealed
three variants:
A. horizontal linear smile-free edge of the upper
lip mucosa remains horizontal and parallel to
cervical tooth line, the plane passing through the
commissural points is tangent at median level to
red upper lip line;
B. convex-free edge of the upper lip mucosa
describes a convex line to the top of the face,
commissural plan is passing above the median
level of red interior upper lip line;
C. concave-free edge of the upper lip mucosa
describes a concave line to the top of the face,
commissural plan is passing below the median
level of red interior upper lip line (Fig. 2).
Anterior smile height, has as alternatives:
A. high gingival smile (sees a continuous ribbon
of gum above the maxillary central incisor);
B. medium smile, showing 75% to 100% of the
maxillary central incisors;
C. reduced smile-showing less than 75% of the upper
central incisors (Fig. 3).
STOMA.EDUJ (2015) 2 (1)