triodent V3 System Gebrauchsanweisung Seite 5

forceps to expand the ring just enough for the tines
to place over the embrasure.
Technique Tip: Ring orientation
Often it is best to place the V3 Ring distally for better
view and access for restoration, even with an MO.
Using a finger to steady the forceps, slowly and
carefully place the ring as low as possible with
the tines straddling the wedge. Slowly release the
forceps tension while using a finger to press the
matrix tab down on to the occlusal surface of the
adjacent tooth. This prevents movement of the
matrix and possible spring-off of an incorrectly
placed ring. When the ring is securely seated,
remove the forceps.
When correctly placed, the tips of the tines should be
close to the gingival margin, and the V-slot of the V3
Ring is touching the wedge such that the ring will not
move any further in an apical direction.
Technique Tip: Burnishing and contact tightness
The matrix is already anatomically shaped so
burnishing is not needed unless the clinician wants
to customize the provided contour. All that is needed
to ensure a tight contact point is for the matrix band
to be touching the adjacent tooth prior to composite
placement. This can be done carefully with a blunt
instrument like a ball burnisher or the tips of Triodent
Pin-Tweezers if they fit into the preparation.
Technique Tip: Wedging from both sides
The V3's V shaped tines allow you to wedge from
both sides. This can be great for sealing the bottom
axial corner of the box or to ensure that there is an
optimal seal along the bottom edge of the box.
RESTORATION
Make sure that the matrix is in full contact with the
adjacent tooth and seals the entire margin of the
box. Etch and bond and complete the restoration
using your preferred composite, filling and curing
incrementally if required.
REMOVAL AND FINISHING
Carefully remove the V3 components, taking special
care with the matrix to prevent laceration of the
gingiva. To ensure complete curing of the composite,
carefully fold the wings of the matrix back and cure
from the buccal and lingual sides.
Break the bond between the matrix and the
composite by pushing a thin, metal blade instrument
through the embrasure below the contact point.
Grip one of the matrix wing holes with Pin-Tweezers
and wriggle and rotate the matrix gently around the
contact point. When the matrix moves freely it can be
removed.
Give the restoration a final light cure, and complete
your finishing.
Note: Over-tight contacts will resolve themselves in a
day or two through minor (<30μm) tooth movements,
similar to orthodontic movements. No awkward
disking or stripping of contacts is necessary.
CLINICAL TIPS
RESTORING MODs
The recommended method is as follows:
1 Prepare M and D cavities
2 Place matrices and wedges in M and D, and etch
and bond
3 Place V3 Ring on M; build and cure M contact point
4 Move V3 Ring to D; build and cure D contact point
5 Complete occlusal surface and cure with C-Factor
issues in mind
MOD ring orientation
The V3 Ring may be placed facing mesially or distally.
In an MOD, the rings may be stacked, with both rings
facing in the same direction, or placed in opposite
directions to give a more open operative field.
Restoring back to back MO and DO
The easiest method for back-to-back Class II
restorations is to complete one and then do the other.
Doing both simultaneously can be faster but requires
more operator skill. A Narrow V3 Ring (yellow) is
recommended as more separation is necessary to
overcome two thicknesses of matrix.