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Assessment of hypodontia in the Turkish patients referring to the orthodontic clinic: A retrospective study.
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The
aim
of
this
retrospective
study
was
to
assess
the
prevalence
and
distribution
of
hypodontia
in
the
permanent
dentition
in
a
sample
of
Turkish
patients
who
referred
to
the
Ankara
Dental
Hospital
for
orthodontic
treatment
.
The
pre-treatment
orthodontic
records
of
2530
patients
,
1382
girls
(
54
.
62
%
)
and
1148
boys
(
45
.
38
%
)
between
the
chronological
ages
of
7
and
16
years
,
were
examined
for
evidence
of
hypodontia
.
The
third
molars
were
excluded
in
this
study
.
The
prevalence
of
hypodontia
in
the
inspected
population
was
5
%
(
3
.
05
%
for
girls
,
1
.
95
%
for
boys
)
.
The
average
number
of
the
congenitally
missing
teeth
per
patient
was
2
.
03
(
1
.
08
for
girls
,
0
.
95
for
boys
)
.
The
prevalence
of
the
congenitally
missing
permanent
teeth
was
34
%
for
the
upper
laterals
,
30
%
for
the
lower
second
premolars
,
12
.
5
%
for
the
upper
second
premolars
and
23
.
5
%
for
the
other
teeth
.
Most
patients
with
hypodontia
(
84
.
9
%
)
(
57
.
13
%
for
girls
,
27
.
77
%
for
boys
)
had
got
missing
either
one
tooth
(
45
.
23
%
)
or
two
teeth
(
39
.
67
%
)
.
The
prevalence
of
hypodontia
in
girls
was
higher
than
in
boys
in
this
sample
of
the
Turkish
patients
.
The
upper
laterals
and
lower
second
premolars
were
consecutively
the
most
symmetrically
absent
teeth
.
The
prevalence
of
advanced
hypodontia
was
lower
than
single
and
symmetrical
hypodontia
.
