Dental Asia November/December 2023

CLINICAL FEATURE
Using a 3D-printer technique, the treatment focused on
the fact that high-flow resin initiates a curing reaction
under the strong illumination of a microscope. The
technique devised can be used in the mouth using a
material injection method.
First, a septum was placed and filled only the buccal
contact area (Figs. 3 and 4). Next, the septum was removed,
and an ivory separator was placed to create an interdental
separation (Figs. 5 and 6). Once sufficient separation
was achieved and space was available to manipulate the
syringe, the 3D-printer technique was initiated.
After the anatomy of the tooth was understood, its outline
was followed to pour the high-flow resin. The high-flow
resin began to harden immediately after it had blended
with the surrounding area and stopped moving (Figs. 7 and
8). It was stacked in the same way that a 3D printer could
Fig. 3: With bulkheads in place, the matrix band had a large curve of
one abutment. Flow resin was poured over this, resulting in a poorly
cleanable morphology with compression of the lingual drusen void
Fig. 4: Fill up to the contact area of the buccal side of the
augmentation using the bulkhead method
Fig. 5: Contacts obtained with the bulkhead removed
Fig. 6: Interdental separation with ivory separator
Fig. 7: High-flow resin was poured in a manner that traced the
original shape of the crown, while filling the tooth with the light of
the microscope
Fig. 8: Raise the centrifugal ridge of #13 and the proximal ridge of
#14, imagining that the height and shape of the ridge should be
aligned
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