Dentsply Sirona TPH Spectra ST Mode D'emploi page 9

Technique Tips:
• Use a single opacity for most common cases: Because the TPH Spectra
shades are designed to replace both dentin and enamel, a single universal CLOUD shade is
sufficient for most restorations. If esthetic blending of more than one universal CLOUD shade
is desired, shade layers may be individually cured to form a foundation for subsequent shade
placement.
• Use multiple opacities for esthetically demanding cases: For esthetically demanding cases such
as a large Class IV or a through-and-through Class III, TPH Spectra
enamel shades can be used with TPH Spectra
layering system to provide added opacity and/or translucency.
– Restore the palatal half of the tooth with the dentin shade
CLOUD shade at the incisal edge.
– Place the universal CLOUD shade along the incisal edge and cure the completed palatal layer.
– Restore the facial half of the tooth with the universal CLOUD shade
along the incisal edge is desired, place the enamel shade there, then cure the completed facial
layer.
TPH Spectra ST and TPH Spectra
®
majority of anatomical form prior to visible light curing.
3.1.6 Light curing
1. Light cure each increment with a suitable curing light designed to cure materials containing cam-
phorquinone (CQ) initiator, i.e. peak spectral output 440-480 nm. Cure universal A shades, BW,
and E1 increments for 10 seconds, and D1 and D3 shades for 30 seconds when using a curing
light that has a minimum irradiance of 800 mW/cm
Cure universal A shades and BW for 20 seconds, E1 for 10 seconds, and D1 and D3 shades for
40 seconds when minimum irradiance is between 550 mW/cm² and 800 mW/cm².
Refer to curing light manufacturer's Directions for Use for compatibility and curing recommenda-
tions.
Curing time for 2 mm increments
Shades
A1-A4, BW
D1, D3
E1
Light curing of individual increments required when layer thickness reaches 2 mm.
2
ST Effects restoratives resist slumping, allowing carving of the
®
TPH Spectra ST and TPH Spectra
®
Curing Recommendations
Output mW/cm
≥ 550
≥ 800
≥ 550
≥ 800
≥ 550
ST universal CLOUD shades in a simplified
®
. Leave room for the universal
2
2
.
2
ST Effects
®
2
ST universal CLOUD
®
ST Effects dentin and
®
. If increased translucency
Curing Time
20 sec
10 sec
40 sec
30 sec
10 sec
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