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PREPARING CEMENTS

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

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PREPARING CEMENTS

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  1. PREPARING CEMENTS

  2. PREPARING CEMENTS 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-offinsert inthe 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=1measuring scoop :1drop of liquid KAVITAN PLUS 2,7g : 1g =1measuring scoop :1drop of liquid KAVITAN CEM 1,4g : 1g =1measuring scoop :2drops 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 andnon-adhesive material

  7. PREPARING KAVITAN KAVITAN PLUS PREPARATION • MIXING TIME30 – 45 s • WORKING TIME 2 – 3 min • MANIPULATING TIME min. 1:30 min • SETTING TIME min. 5 min KAVITAN PRO PREPARATION • MIXING TIME30 – 45 s • WORKING TIME 2 – 3 min • MANIPULATING TIME min. 1:30 min • SETTING TIME min. 4 min

  8. PREPARING KAVITAN LC • mixing ratio of KAVITAN LC: 1measuring scoop of powder 2drops 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 30 - 45s 3 min

  11. PREPARING ADHESOR MIXING RATIO a)Base Layersand Fillings 2,30g : 0,80g =2measuring scoops of powder :3drops of liquid MIXING TIME2 – 2:30 min WORKING TIME 4 – 4:30 min SETTING TIME6 – 7 min

  12. PREPARING ADHESOR MIXING RATIO b)Fixed Bridge Bonding 1,40g : 0,80g =2measuring scoops of powder :5drops of liquid MIXING TIME1 – 1:30 min WORKING TIME 3 – 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 partsand gradually, slowly mix in to avoid lumps

  14. 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 45ºto 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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