Oxide ceramics

1. University autonomy of ciudad Juárez 1 1http :// notijuarez.com/wp icb esto departament of stomatology oxide ceramics dra. selene Pérez González professor: dr. Alfredo nevÁrez rascón 2 http://www.larednoticias.com/fotos/icb2.jpg

2. Transparent comparison between metal-ceramic (right photo) and aesthetic ceramic (left photo) http://www.nhakhoaminhkhai.com/services_detail.php?cat=25&id=167&lang=language

3. Introduction 1965 mclean and Hughes Opened the world of metal-free ceramics

4. oxide ceramics containing oxidizing components only, but also commonly referred to as ceramics and the mixed oxide components http://www.ivoclarvivadent.us/en-us/products/alloys/predominantly-base-alloys/nickel-chromium/colado-nc They are polycrystalline materials with little or no vitreous phase, which is the weak part of the porcelain. Due to its high opacity are used as internal caps ceramic restorations.

5. These authors feldspathic porcelain incorporated significant amounts of aluminum oxide reducing the proportion of quartz. The result was a mixed material having a microstructure in which the alumina, having a high melting temperature, remained suspended in the matrix.

6. Composition incorporated 50% aluminum oxide feldspathic porcelain ( The presence of alumina causes a decrease glass to its own characteristics, which is less brittle and reduces the risk of devitrification process of crystallization of the ceramic what becomes brittle and opaque to lose amorphous or glassy structure (- Quartz) mass hardener: The quartz constitutes the crystalline phase.

7. It created a more effective reinforcer twice the feldspathic

8. Table of translucency of ceramic systems Translucen opaque Finesse In- Ceram Alumina Fortress In- Ceram Zirconia Optec -HSP Procera AllCeram IPS Empress I Procera Zirconia IPS Empress II IPS e.max ZirCAD IPS e.max CAD Cercon IPS e.max Press DC- Zirkon In- Ceram Spinell Lava In- Ceram YZ

9. 5 http ://www.clinicagdent.com/uploads/IMG_2910.jpg Variation´s feldspathic ceramics and oxides 6 http :// www.clinicafaus.com/casos/docs/2007_03.asp

10. It is currently used mostly internal structures making Is coated with alumina porcelain lower

11. His fractures are high: 2 % previous restorations 15 % after

12. commercial brands Cuorumh-ceram Vitadur - alpha http://www.google.com.mx/imgres?q=vitadur+alpha&um=1&hl=es&sa=N&rlz=1T4ADFA_esMX460MX460&biw=1280&bih=868&tbm=isch&tbnid=0dvhhUrCgkz50M:&imgrefurl=http://www.delucalab.com/vita_vm_series_porcelain.html%3Fid%3D2&docid=19VU7Soy-OtQ4M&imgurl=http://www.delucalab.com/content-doctors/Cosmetic%252520Dentistry/Vita%252520VM%252520Series%252520Porcelain/Pics/vitduralpha.jpg&w=214&h=111&ei=hdumT72FIujq2AWjp9GmAg&zoom=1&iact=hc&vpx=237&vpy=210&dur=75&hovh=88&hovw=171&tx=115&ty=73&sig=113367709529783031858&page=1&tbnh=88&tbnw=171&start=0&ndsp=21&ved=1t:429,r:0,s:0,i:68

13. Nbk 1000 Vitadur- n http://www.google.com.mx/imgres?q=Vitadur-+n&um=1&hl=es&rlz=1T4ADFA_esMX460MX460&biw=1280&bih=868&tbm=isch&tbnid=kHHPlT5jlEj0zM:&imgrefurl=http://www.attenborough.com/es/products/vita_in_ceram.asp&docid=9wNk3nmaMoDZxM&imgurl=http://www.attenborough.com/images/products/vita/vitadur-n_assortment.jpg&w=394&h=263&ei=sdymT8uyFKfi2QXTtt2qAg&zoom=1&prmdo=1&iact=rc&dur=265&sig=113367709529783031858&page=1&tbnh=171&tbnw=264&start=0&ndsp=20&ved=1t:429,r:0,s:0,i:66&tx=171&ty=103

14. ceramic systems In- ceram alúmina (vita): Crowns and bridges Composed of 99% aluminum oxide more flexible ceramichttp://www.google.com.mx/imgres?q=in+ceram+alumina&um=1&hl=es&sa=X&rlz=1T4ADFA_esMX460MX460&biw=1280&bih=868&tbm=isch&tbnid=o14CaC8UrvEh0M:&imgrefurl=http://www.nhakhoaminhkhai.com/services_detail.php%3Fcat%3D25%26id%3D167%26lang%3Dlanguage&docid=thppIV0yHbGeuM&imgurl=http ://

15. In – ceram spinell (vita) : Oxide aluminum + magnesium (72%) (28%)

16. In – ceram zirconia (vita) : high resistance Aluminum (67%), reinforced zirconium (33%) Subsequent use in bridges http://www.nhakhoaminhkhai.com/services_detail.php?cat=25&id=167&lang=language

17. Procera allceram (nobel biocare) : 99.5 % alumina reduction cracks http://www.google.com.mx/imgres?q=alumina&hl=es&sa=X&qscrl=1&nord=1&rlz=1T4ADFA_esMX460MX460&biw=1280&bih=868&tbm=isch&prmd=imvns&tbnid=7HhfcntBlzxedM:&imgrefurl=http://www.asiaron.com/activated_alumina.htm&docid=2gVj-lAD8XEZjM&imgurl=http://www.asiaron.com/activated%252520alumina.JPG&w=500&h=338&ei=L9SmT7KFLKHs2QXe262mAg&zoom=1&iact=hc&vpx=591&vpy=279&dur=2771&hovh=184&hovw=273&tx=77&ty=90&sig=113367709529783031858&page=2&tbnh=155&tbnw=207&start=20&ndsp=25&ved=1t:429,r:7,s:20,i:129

18. 7 http ://elatache.com/caracteristicas-generales-y-propiedades-de-las-ceramicas-sin-metal-parte-ii amount of alumina ceramic in the commercial

19. Advantage double resistance 50% more elasticity hardness

20. disadvantages + alumina little aesthetic porosity No translucency (carved requires aggressive)

21. bibliography http :// www.clinicafaus.com/casos/docs/2007_03.asp http:// elatache.com/caracteristicas-generales-y-propiedades-de-las-ceramicas-sin-metal-parte-ii http:// scielo.isciii.es/scielo.php?script=sci_arttext&pid=S1138-123X2007000300003