triodent V3 System Gebrauchsanweisung Seite 4

V3 SYSTEM INSTRUCTIONS
Matrices and wedges are for single use only.
Rings, Pin-Tweezers and Forceps are reusable
and should be steam autoclaved at 134°C/273°F
for at least 3 minutes prior to clinical use (refer
Hygiene section).
ISOLATION
Always place rubber dam or other suitable isolation
technique.
Technique Tip: Placing wedge first vs matrix first
Wedging before placing the matrix prevents bleeding
during cavity prep and eliminates the possibility of a
gingival tag protruding into the box or entrapment of
rubber dam. Even better, a WedgeGuard will protect
the papilla/rubber dam and the adjacent tooth as
well. If you prefer to place the matrix before the
wedge, trap the matrix tab with your finger against
the neighboring tooth while inserting the wedge. This
prevents the matrix sliding out of the embrasure.
Ensure there is no gap between the matrix and the
tooth at the gingival margin after ring placement.
If there is, engage one of the matrix wings with a
suitable instrument and pull the matrix tight.
WEDGE SELECTION AND PLACEMENT
Wedge size selection is important to obtain maximum
adaptation and prevent wedge deformation. For
optimum adaptation, choose the largest wedge size
that will fit the interproximal space and slide it into
place. If the wedge deforms, choose a smaller size.
Technique Tip: Pre Load Pin-Tweezers
To save time and avoid dropping matrices and
wedges, ask your assistant to pre-load the
appropriate sizes using Triodent Pin-Tweezers. Pin-
Tweezers minimize the possibility of unintentional
release, allowing for placement and removal of
wedges and matrices in a safe and controlled
manner. Squeeze the Pin-Tweezers at the back to
open and near the tip to grip.
CAVITY PREPARATION
Complete the cavity prep as usual.
REMOVE GUARD (if applicable)
If using a WedgeGuard, detach the guard after prep,
leaving the wedge behind. A mirror can be used to
hold the wedge in place while the guard is removed.
MATRIX SELECTION AND PLACEMENT
The 5.5mm is recommended for most applications.
The 4.5mm and 3.5mm are designed for use with
adolescents and patients with poorly erupted
posterior teeth. The 6.5mm is designed for larger
cavities occlusogingivally.
After cavity prep, ensure that the interproximal
contact is open. If there is no gap, we recommend
using a diamond polishing tip to open it slightly.
Now grip the tab of an appropriate sized matrix with
tweezers, ensuring that the gold side of the tweezer
tips will be facing away from the tooth, bend the tab
towards you to create a contra-angle, and place the
matrix apically in the gingival crevice. To prevent the
matrix moving when you release the tweezers, use
a finger to trap one end against the buccal or lingual
surface of the tooth.
Technique Tip: Opening the contact
To ensure more predictable results, open the contact
area, using for example the V3 ring or a diamond
polishing strip. This makes it easier to position the
matrix correctly without deformation, and to view
the vertical margins during the procedure, and also
to check these margins at follow-up appointments.
Bevelling the gingival margin will also make it easier
to confirm by sight, inside the box, that you have a
proper matrix seal.
V3 RING SELECTION AND PLACEMENT
The Universal V3 Ring (green) is indicated for most
Class II cases but more specifically molars. The
Narrow V3 Ring (yellow) is designed for premolars
and primary teeth as it has a stronger action to
achieve optimum separation on narrow embrasures.
The yellow ring can also be useful for teeth that are
difficult to separate.
Select the appropriate sized V3 Ring. Using forceps
(we recommend that only Triodent's specially
designed forceps should be used), engage the
slots on the inside of the ring, then spread the