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Dentin dysplasia: single-tooth involvement?
[dentin dysplasia]
Dentin
dysplasia
is
a
genetic
defect
of
dentin
formation
inherited
as
an
autosomal
dominant
trait
.
It
is
characterized
by
normal
enamel
but
atypical
dentin
formation
with
abnormal
pulpal
morphology
.
Once
thought
to
be
a
single
entity
,
dentin
dysplasia
has
now
been
divided
into
type
I
(
radicular
)
and
II
(
coronal
)
.
Type
I
is
by
far
the
more
common
.
Both
types
include
multiple
/
generalized
involvement
of
primary
and
permanent
dentition
.
Combinations
of
both
types
have
also
been
described
in
the
literature
.
Four
distinct
forms
of
dentin
dysplasia
type
I
and
1
form
of
dentin
dysplasia
type
II
are
identified
.
Although
there
seems
to
be
no
need
to
identify
more
than
2
distinct
types
of
this
relatively
rare
inherited
defect
of
human
dentin
,
the
possible
existence
of
additional
forms
of
the
disease
can
not
be
ruled
out
.
Here
is
a
case
report
of
dentin
dysplasia
in
a
single
tooth
,
with
crown
and
roots
of
normal
dimensions
,
associated
with
severe
pain
and
mobility
and
histologically
involving
both
coronal
and
radicular
dentin
.
Focal
odontoblastic
dysplasia
or
dentin
dysplasia
type
III
could
be
the
new
entity
.
Diseases
Validation
Diseases presenting
"atypical dentin formation"
symptom
dentin dysplasia
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