Step-By-Step Instructions - DENTSPLY ChemFil Rock Instrucciones De Uso

3. Step-by-step instructions
3.1 Shade selection
ChemFil™ Rock restorative offers five shade options: A1, A2, A3, A4 Opaque, Contrast
White.
3.2 Cavity preparation
1. In all cavity classes cavity preparation may be kept to the minimum required for car-
ies removal and for preparation of butt joint margins.
2. Prepare for a restoration thickness of more than 1 mm.
3. Prepare butt joints – avoid bevelled margins.
4. Rinse surface with water spray and carefully remove excess rinsing water with air
spray. Do not desiccate the tooth substance – cavity surface should be moist.
5. Use cotton rolls or rubber dam to isolate the cavity from contamination.
3.3 Placement of matrix
1. In Class II cavities place a matrix (e.g. AutoMatrix
trix system) and wedge. Burnishing of the matrix band will improve contact and
contour. Pre-wedging or BiTine
2. Use a dead soft, thin matrix band. Contact surface of steel matrix can be coated
with a water soluble or petroleum lubricating jelly.
3. In Class V cavities cervical matrices may be used.
3.4 Pulp protection
1. In deep cavities cover the dentin close to the pulp (less than 1 mm) with a hard-
setting calcium hydroxide liner (Dycal
structions for Use) leaving the rest of the cavity surface free for bonding.
3.5 Application
Time after activation
Mixing
Working time
Waiting time before further manipulation/ finishing
3.5.1 Activation of the capsule
1. Activate the capsule by pressing the capsule onto a stable surface and depressing
the plunger to its limit (at this position the plunger will overlap by about 2 mm).
3.5.2 Mixing
1. Immediately place the activated capsule in a capsule mixer (4000-4500 oscillations/
minute) and mix for 15 seconds
- or -
in a rotation mixer (e.g. RotoMix™
centrifugation mixing.
RotoMix™ is a registered trademark of 3M ESPE AG.
2
®
ring placement is advocated.
®
calcium hydroxide liner, see complete In-
®
) for 12 seconds of rotation and 3 seconds of
2
matrix system or Palodent
15 seconds
1 minute 30 seconds
6 minutes
ma-
®
5