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Dentin dysplasia type I. Report of case and ultrastructural study.
[dentin dysplasia]
Radicular
dentin
dysplasia
(
DD-
I
)
is
a
rare
hereditary
dental
alteration
.
It
is
characterized
clinically
by
almost
normal
looking
crowns
and
severe
hypermobility
of
the
teeth
.
The
radiographic
analysis
,
on
the
other
hand
,
discloses
the
obliteration
of
all
pulp
chambers
,
the
short
,
malformed
roots
and
plenty
of
periapical
bone
radiolucencies
on
noncarious
teeth
.
A
case
of
radicular
dentin
dysplasia
is
presented
.
In
this
43
-
year
-old
woman
the
diagnosis
was
supported
,
besides
the
clinical
and
radiographic
analysis
,
by
the
pedigree
of
the
proband
,
which
showed
the
autosomal
dominant
pattern
of
feature
transmission
.
Further-more
,
the
electron
microscopic
analysis
of
one
extracted
molar
revealed
the
atubular
structure
of
the
secondary
dentin
,
and
its
globular
organization
.
