zirconia in dentistry adv and disadvantages

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1. 1 PG/PA/05

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3. Zirconia in dentistry PG/PA/05 Department of Prosthodontics

4. 4 “ Change is the law of life. And those who look only to the past or present are certain to miss the future - John F. Kennedy ” The Stone Age and Bronze Age were named for the materials that dominated these major historical periods. Consequently, the modern era, which has encountered an ever- increasing assortment of ceramic materials for industrial or biomedical use could be characterized as the “ceramic age”.

5. CONVENTIONAL POWDER/ SLURRY CERAMICS

6. JOURNEY OF CERAMICS IN DENTISTRY

7. PRESSABLE CERAMICS CASTABLE CERAMICS INFILTRATED CERAMICS

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9. Zirconia - Ceramic steel

10. What is Zirconia ??

11. Understanding the Basic Terminologies… Zirconium Zircon Zirconia

12. ZIRCONIUM Arabic word ZARGON ( golden in colour ) zar gun ( gold ) + ( colour ) Vagkopoulou T, Koutayas SO, Koidis P, Strub JR. Zirconia in dentistry: Part 1. Discovering the nature of an upcoming bioceramic . Eur J Esthet Dent. 2009 ;4(2 ):130-51.

13. ZIRCONIUM Exists in two forms THE AMORPHOUS FORM THE CRYSTALLINE FORM White & Ductile Metal Blue-Black Powder Vagkopoulou T, Koutayas SO, Koidis P, Strub JR. Zirconia in dentistry: Part 1. Discovering the nature of an upcoming bioceramic . Eur J Esthet Dent. 2009 ;4(2 ):130-51.

14. Zirconia It is Zirconium dioxide (ZrO 2 ) Poly-crystalline ceramic with high density Zirconia is an industrial ceramic, used as a BIOCERAMIC for over 20 years Vagkopoulou T, Koutayas SO, Koidis P, Strub JR. Zirconia in dentistry: Part 1. Discovering the nature of an upcoming bioceramic . Eur J Esthet Dent. 2009 ;4(2 ):130-51.

15. Cubic ( >2370 ° C ) MonoCLINIC Pure zirconia at room temperature stable up to 1170 ° C Crystallographic phases of ZIRCONIA Tetragonal ( 1170-2370 ° C )

16. why is Zirconia preferred ??

17. Phillips’ science of dental material , eleventh edition Twice as of Alumina Oxide Ceramics 5 times greater than standard Glass Ceramics. Flexural Strength 800 to 1500 Mpa

18. Fracture Toughness - 8 to 10 Mpa Twice as high as Alumina Oxide Ceramics Phillips’ science of dental material , eleventh edition

19. Phillips’ science of dental material , eleventh edition

20. The mechanical properties of zirconia (zirconium dioxide) are the highest ever reported for any dental ceramic, which naturally has generated considerable interest. Phillips’ science of dental material , eleventh edition Hence, it is considered a most promising dental material.

21. CAN ZIRCONIA BE USED IN ESTHETIC ZONE ?

22. Zirconia DOES qualify as an esthetic material specially for high esthetic area

23. Translucency of Zirconia was less sensitive to thickness compared to that of the glass ceramics. J Prosthet Dent. 2013 Jul;110(1):14-20.

24. In terms of translucency, the studied zirconia systems could satisfactorily replace the human dentine within a dental restoration. J Dent. 2012 Dec;40 Suppl 2:e34-40

25. Dental applications of zirconia Dental applications of zirconia

26. Zirconia Composites Inlay onlay Full & Partial Coverage Crowns Extra Coronal Attachments Implant Abutments Veneers Post & Cores Orthodontic Brackets Implants Vagkopoulou T, Koutayas SO, Koidis P, Strub JR. Zirconia in dentistry: Part 1. Discovering the nature of an upcoming bioceramic . Eur J Esthet Dent. 2009 ;4(2 ):130-51.

27. Implant abutments Modgi C, Aras M.Zirconia Abutments In Implant Dentistry.Int Journal Of Oral Implantlogy And Clinical Research;2012;3(1):39-42

28. Root analogue zirconia implants K. M. Regish , Deeksha Sharma, and D. R. Prithviraj ( 2013 ) An Overview of Immediate Root Analogue Zirconia Implants. Journal of Oral Implantology : April 2013, Vol. 39, No. 2, pp. 225-233.

29. Cutting and surgical instruments         DEPARTMENT OF ORAL SURGERY AND PERIODONTICS

30. Grauer D, Wiechmann D, Heymann G, swift E. Computer aided design / Computer aided manufacturing technology in customized orthodontic appliances. Journal of esthetic and restorative dentistry 2012;24 (1):3-9 DEPARTMENT OF ORTHODONTICS Enhanced strength Superior resistance to deformation and wear Reduced plaque adhesion Improved esthetics

31. Zirconia crowns/ fixed partial dentures DEPARTMENT OF PROSTHODONTICS High flexural strength and fracture resistance Y-TZP is the most recent framework material for the fabrication of all-ceramic FPDs either in anterior or posterior sites. The load bearing capacity is significantly higher than other conventional all-ceramic systems.

32. Zirconia as a filler material in denture base resins Ceria-stabilized “ znano crystals”. High strength, toughness, and thermal stability Offers excellent biocompatibility More esthetic. Radio-opaque Vagkopoulou T, Koutayas SO, Koidis P, Strub JR. Zirconia in dentistry: Part 1. Discovering the nature of an upcoming bioceramic . Eur J Esthet Dent. 2009 ;4(2 ):130-51.

33. VENEERS DEPARTMENT OF CONSERVATIVE DENTISTRY AND ENDODONTICS MERITS Both Enhance esthetics and strength Minimally invasive restoration Good chemical and dimensional stability High mechanical strength and toughness Ability to alter the color of the dark tooth. Therefore, it is assumed that, due to the inherent opacity of the zirconia core. The clinical application of zirconia bilayer veneers may offer High-strength veneer restoration with better masking ability for a given discoloration.

34. INLAYS ONLAYS

35. Zirconia post and core Marghalani TY,Hamed MT,Awad MA,  Naguib GH,  Elragi AF. Three-dimensional finite element analysis of custom-made ceramic dowel made using CAD/CAM technology. J Prosthodont . 2012 Aug ;21(6):440-50

36. Zirconia -filled Composite Resins Adhesive Bonding of Zirconia with Single-liquid AcidicPrimers and a Tri-n- butylborane Initiated Acrylic Resin Daisuke Nakayamaa /Hiroyasu Koizumib / Futoshi Komineb /Markus B. Blatzc / Naomi Tanoued /Hideo Matsumurae Nano -sized particles (“ Znano ”) Superior wear resistance Enamel-like hardness Improved marginal integrity Provide sufficient transparency Good workability Radiopacity

37. Digital Era

38. The advent of zirconia ceramics, in combination with computer technology, has led both dental science and industry to experience their own “dream.” “ zirconia dream” could be defined as highly biocompatible zirconia ceramic material

39. “The Technology You Use Impresses No One .. The Experience You Create With It Is Everything” Sean Gerety

40. conclusion The technological evolution of dental ceramics has been remarkable over the past four decades- from feldspathic porcelains to zirconia -based all-ceramics. The journey is not over yet….

41. The Technology Is Achieving New Milestone Everyday . In Today's Fast Paced World, CAD/CAM Systems Have Become An Essential Part Of Dentistry . Technology is Changing Rapidly, so its important to gear up and move along with it…..

42. Wish you all dazzling smiles!!! Crafted by a PROSTHODONTIST!