2. Impression &Impression Materials in Implant Dentistry DR MANSOUR RISMANCHIAN Associated professor,Department of prosthodontics and Implant,Dental school.Isfahan university of medical sciences

3. Type of Impression Fixture Level Abutment Level

5. Type of Impression open Tray Close Tray

7. Type of Impression -Custom Tray {one step, Two step} -Stock Tray {one step,two step}

9. Impression Materials setting riversibleirriversible

10. Polymerization (curing) Addition curing (no by product) Condensation curing (by product)

11. After settingelasticpolysulphidesPoly etherssiliconesrigide

12. Silicones condensation curing addition curing

13. Selection of Impression material 1.personal preference 2.easy of manipulation 3.economic 4.color 5.easy of assessment

14. Comparison of Impression Materials

15. Setting time poly sulfide>silicons>poly ether

16. Elasticity poly sulphide>poly ether>Additional silicons>condensational silicons

17. Hardness polyether>Additionalsilicons> condensational silicons>poly sulfide

18. Flow polyether>silicon>polysolfid

19. Tear strenght polysolfid>silicon>polyether

20. Dimentional stability Additionals>polyether>polysolfid> condensationals

21. Technique of mixing -stirring -stropping -automixer

22. Type of Rubber base materials 1.elastic -light body -heavy body -regular body –putty 2.rigid -heavy

23. Disinfection of Impression -immersion -spray

24. Disinfection materials -chlorine compounds -complexphenolics -Golutaraldehyde%2 -Iodophors -Alchol phenolics

25. Impression with silicones

26. 1.putty/wash

30. 2.Double mix

37. THANK YOU FOR YOUR ATTENTION