Cavity Preparation - Dentsply Sirona TPH Spectra ST Mode D'emploi

3.1.1.1 Shade selection with VITA
Have the i-shade label ready.
To make sure that the i-shade label is available chair- side, adhere it to the rear side
of the VITA
1. Select the VITA
2. Use the i-shade label (see table below) to identify the matching TPH Spectra
CLOUD shade, and appropriate TPH Spectra
are desired.
Tooth shade
according to the
VITA
®
Classical Shade
Guide
Recommended
TPH Spectra ST
®
universal
CLOUD shade
Recommended
TPH Spectra ST
®
Effects shades
3.1.1.2 Shade selection with the TPH Spectra
1. Use the shade tabs of the TPH Spectra
of the area to be restored.
Avoid contamination of the shade guide.
To prevent the shade guide from exposure to spatter or spray of body fluids or con-
taminated hands it is mandatory that the shade guide is handled offside the dental
unit with clean/disinfected gloves. For shade selection, remove individual tabs from
shade guide holder.

3.1.2 Cavity preparation

1. Prepare the cavity so that no residual amalgam or restorative is left.
2. Use adequate isolation such as rubber dam.
3. Rinse surface with water spray and carefully remove rinsing water. Do not desiccate the tooth
structure.
3.1.3 Matrix placement and wedging
1. Place a matrix (e.g. Mylar, AutoMatrix
wedge. Burnishing of the matrix band will improve contact and contour. Pre-wedging or BiTine
ring placement is recommended.
3.1.4 Pulp protection, tooth conditioning/dentin pre-treatment, adhesive application
Refer to adhesive manufacturer's Directions for Use for pulp protection, tooth conditioning and/or
adhesive application. Once the surfaces have been properly treated, they must be kept uncontami-
nated. Proceed immediately to placement of the material.
classical shade guide and i-shade label
®
classical shade guide.
®
shade, which best matches the area of the tooth to be restored.
®
A1 B1 C1 A2 B2
A1 A2
D1
ST Effect shade(s) if enhanced esthetic effects
®
D2 A3 C2 D3
A3
E1
ST and TPH Spectra
®
ST shade guide to select the shade closest to the shade
®
Matrix System, Palodent
®
®
D4 A3.5 B3 B4 C3
A3.5
D3
ST Effects shade guide
®
Plus Matrix System) and
®
ST universal
A4 C4
A4
®
6