Publicité
Les langues disponibles
Les langues disponibles
Expansion control (%)
Molar Crowns
Pre-Molar Crowns
Front Crowns
Veneers
Inlays 1-layer and 2 layers
MOD – Inlays
Onlays
Up to 3-unit bridges (IPS e.max Press)
For Pre-Molar Crowns and Front Crowns attention has to be paid to the fact that better fitting can
be obtained with slim and lean preparations at the higher expansion rate of 80 %.
Expansion figures given above are guidelines and have to be adjusted accordingly i.e. due to
different preparation models, press ceramic blanks and press temperature.
The figures given by our research and development department are guidelines and can be
individually adjusted.
Stirring
Use a spatula to stir the investment material by hand until the powder has been wetted thoroughly.
Mixing in vacuum
60 seconds. Place in vacuum for 15 seconds but without switching the paddles on.
Mix for 60 seconds. Check the vacuum/paddles frequently for correct functioning. Inadequate vacuum results
in inaccurate fit and bubbles on the casting.
Working time
Approx. 6 minutes at approx. 22°C (72°F) (Room temperature).
The working time depends on the room temperature. Warmth curtails the working time.
Investing
Fill the ring with investment: only use a vibrator if it is required to improve the flow.
Avoid high vibration! This will lead to the formation of bubbles and breakdown of the mixture.
Pre-drying time
30 minutes after start of mix.
Placing the ring
1. Remove casting ring former and sprue former base.
2. Straighten bottom of ring (plaster knife / sand paper).
3. After 30 minutes place the ring in the 850°C (1562°F) preheated furnace (speed heating) or in cold furnace
(program controlled preheating)
Preheating
850°C (1562°F).
Hold-times speed heating
Hold-time of ring once preheating temperature 850°C (1562°F) is attained again.
100 g ring: 60 minutes.
200 g ring: 60 minutes.
Liquid (ml)
Dist. water (ml)
75 %
75 – 80 %
25 – 20 %
75 – 80 %
25 – 20 %
70 %
40 – 50 %
60 – 50 %
70 %
85 – max. 90 %
15 – 10 %
60 – 70 %
40 – 30 %
HERAVEST
Instuctions for use
25 %
30 %
30 %
Press
®
GB
- 7 -
Publicité
