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Proposed new grading of oral submucous fibrosis based on cheek flexibility.
[oral submucous fibrosis]
Oral
submucous
fibrosis
(
OSMF
)
is
a
potentially
malignant
disorder
of
oral
cavity
,
pharynx
and
upper
digestive
tract
,
characterized
by
progressive
inability
to
open
the
mouth
.
Based
on
clinical
and
/
or
histopathological
features
,
various
classifications
and
grading
systems
have
been
put
forth
till
date
.
The
aim
of
the
present
study
was
to
study
the
variance
in
cheek
flexibility
in
OSMF
patients
,
the
observance
of
which
led
to
the
introduction
of
a
new
grading
for
the
condition
.
The
study
included
412
patients
with
OSMF
attending
to
the
Department
of
Oral
Medicine
and
Radiology
during
the
period
from
December
2008
to
June
2013
.
A
detailed
history
and
examination
of
the
patients
was
performed
with
special
emphasis
on
measuring
cheek
flexibility
.
Statistical
analysis
was
done
using
Chi
-square
test
and
p
<
0
.
05
was
considered
to
be
statistically
significant
.
The
most
common
etiological
factor
was
tobacco
(
73
.
3
%
)
.
All
the
patients
reported
with
burning
sensation
of
the
mouth
and
blanching
of
the
mucosa
.
Malignancy
was
reported
in
only
4
.
6
%
patients
.
60
.
4
%
patients
showed
cheek
flexibility
of
30
mm
and
above
,
while
29
.
6
%
patients
showed
cheek
flexibility
between
20
-
30
mm
and
10
%
patients
showed
less
than
30
mm
of
cheek
flexibility
.
The
observations
of
the
present
study
have
led
to
the
proposal
of
a
new
grading
of
OSMF
based
on
cheek
flexibility
which
could
assist
in
the
categorization
of
the
condition
by
the
clinicians
.
Key
words
:
Cheek
flexibility
,
oral
submucous
fibrosis
,
grading
,
areca
nut
.
Diseases
Validation
Diseases presenting
"oral cavity"
symptom
cowden syndrome
dedifferentiated liposarcoma
dentinogenesis imperfecta
dystrophic epidermolysis bullosa
epidermolysis bullosa simplex
junctional epidermolysis bullosa
kabuki syndrome
kindler syndrome
lamellar ichthyosis
oral submucous fibrosis
papillon-lefèvre syndrome
pleomorphic liposarcoma
proteus syndrome
sneddon syndrome
well-differentiated liposarcoma
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