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Main study
The document describes a study that fabricated 5 groups of ceramic dental material samples. Group 1-3 involved different veneering techniques while Groups 4-5 only involved zirconia cores. The samples underwent surface polishing with diamond burs and ceramic polishing discs. Surface roughness was measured after each step using a profilometer to evaluate the effects of the polishing techniques.
Main study
- 2. Fabrication of samples CeramillZi block
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- 7. 15 discs ofZolid Fx (Group 5)
- 8. Sintering zolidfx discs
- 9. Group 1 (manualveneered ) Ceramill zi core VITA Vm9 powder (Enamel and dentin) Akcent plus glazed
- 10. Ceramill zi core VITA Pm9 powder(Enamel and dentin) Akcent plus glazed Group 2 (Over-pressed)
- 11. Ceramill zi core VITA Pm9 powder(Enamel and dentin) Akcent plus glazed Group 3 (Digital veneered)
- 12. Milling Group 3By CAD/CAM
- 13. Digital veneered and zirconiacore before cementation
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- 15. Group 4 (cermillzi) Ceramill zi Akcent plus glazed
- 16. Group 5 (Zolid Fx) Zolid fx Akcent plus glazed
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- 21. Base for evaluationroughness
- 25. 3 parallel linein central of disc for measurement
- 26. Make a notchon discs and mark line on cylinder to repeat position
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- 29. Surface adjustement usingdiamond bur to simulate the chairside adjustment procedures
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- 34. Diamond paste stagewith ceramiste ultra II cups
- 35. Glazed surface (shine) Unglazedsurface after using diamond bur (dull)
- 36. Ultrasonics cleaner for5 mins after each step
- 37. Evaluation roughness by measurementstudio software
- 39.
- 40. Coating specimens before examinationunder microscope
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- 44. Start the nextwith durawhite bur with low speed hand- piece and The steps are repeated (ultrasonics cleaner and profilometer evaluation)
- 45. Last step usingceramiste cups with diamond paste
- 46. All measurements aretaken manually. Take 2 readings from each line to have 6 readings for one sample.