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PREPARING CEMENTS.

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Presentation on theme: "PREPARING CEMENTS."— Presentation transcript:

1 PREPARING CEMENTS

2 PREPARING CEMENTS shake powder before use
INSTRUCTIONS FOR PREPARING POWDER shake powder before use don‘t compress powder in the measuring scoop

3 PREPARING CEMENTS INSTRUCTIONS FOR PREPARING POWDER
Overfill the measuring scoop with powder and then remove surplus powder using the edge of the cut-off insert in the bottle neck.

4 PREPARING CEMENTS INSTRUCTIONS FOR PREPARING LIQUID
hold the bottle vertically when dosing liquid to achieve optimum drop size, squeeze the bottle gently any dried material must be removed from the dropper

5 PREPARING KAVITAN MIXING RATIO KAVITAN PRO
3,5g : 1g = 1 measuring scoop : 1 drop of liquid KAVITAN PLUS 2,7g : 1g = 1 measuring scoop : 1 drop of liquid KAVITAN CEM 1,4g : 1g = 1 measuring scoop : 2 drops of liquid

6 PREPARING KAVITAN Place powder and liquid on a smooth disposable paper pad or a glass plate add powder to liquid in 2 – 4 doses mix powder and liquid using a plastic or stainless spatula at the shortest possible time (max. 30 – 45 s.) Properly prepared cement is homogenous, flexible and non-adhesive material

7 KAVITAN PLUS PREPARATION
PREPARING KAVITAN KAVITAN PLUS PREPARATION MIXING TIME – 45 s WORKING TIME – 3 min MANIPULATING TIME min. 1:30 min SETTING TIME min. 5 min KAVITAN PRO PREPARATION Doba zpracovatelnosti – od začátku mísení do začátku tuhnutí Manipulační doba – od konce mísení do začátku tuhnutí Doba tuhnutí – od začátku mísení do iniciálního ztuhnutí MIXING TIME – 45 s WORKING TIME – 3 min MANIPULATING TIME min. 1:30 min SETTING TIME min. 4 min

8 PREPARING KAVITAN LC mixing ratio of KAVITAN LC:
1 measuring scoop of powder 2 drops of liquid Add powder to liquid in 2 – 4 doses

9 PREPARING KAVITAN LC mixing time max. 30 – 45 sec
density of putty, bright finish

10 PREPARING KAVITAN LC WORKING TIME Polymerization 20s
Mixing Working time s min

11 PREPARING ADHESOR MIXING RATIO a) Base Layers and Fillings
2,30g : 0,80g = 2 measuring scoops of powder : 3 drops of liquid MIXING TIME 2 – 2:30 min WORKING TIME – 4:30 min SETTING TIME 6 – 7 min

12 PREPARING ADHESOR MIXING RATIO b) Fixed Bridge Bonding
1,40g : 0,80g = 2 measuring scoops of powder : 5 drops of liquid MIXING TIME 1 – 1:30 min WORKING TIME – 4 min SETTING TIME 6 – 8 min

13 PREPARING ADHESOR MIXING PROCEDURE
mix on a glass plate with stainless spatula at 23 ± 1 ºC (to prolong the working time, mixing at 20 ºC is recommended) divide powder into 8 – 12 parts and gradually, slowly mix in to avoid lumps

14 Mistakes in preparation
PREPARING CEMENT Mistakes in preparation Incorrect dose of powder or liquid Differing size of drop while measuring Inadequate mixing of whole amount of powder into liquid The dropper must be kept clean

15 PREPARING CEMENTS TIPS
Before turning the bottle to the vertical position, hold it at an angle of 45º to remove air bubbles

16 STORING CEMENTS in a cold and dry place in a well sealed inner container at temperature 5 ºC to 25 ºC avoid temperature higher than 25 ºC !!! Seal the bottle and the jar carefully after withdrawing powder and liquid !!!!

17 Thank you for your attention!


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