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All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
All ceramic restorations
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All ceramic restorations

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The most preferable crown restoration for anteriors due to their esthetic enhancements..

The most preferable crown restoration for anteriors due to their esthetic enhancements..

Published in: Health & Medicine
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  • 1. BY: Hrudi Sundar SahooMeenakshi Ammal Dental college, Chennai
  • 2.  Introduction Constituents Classification Advancements in Ceramic Dentistry In-Ceram Tooth preparation Laboratory processing Cementation and finishing
  • 3.  Non-crystalline glasses composed of structural units of silicon and oxygen (SiO4 tetrahedra). Most esthetic fixed restorations. Highly desirable esthetic properties.
  • 4.  Major components: Feldspar, Quartz, Kaolin Other components: Oxides of sodium, Potassium, Calcium, Aluminium, Magnesium, Lithium etc. For colours: Oxides of Indium, Chromium, Tin, Iron, Cobalt, Cerium.
  • 5.  Based on firing temperature: 1. High-fusing: 1,290 to 1,370°C (2,350 to 2.500T) 2. Medium-fusing: 1,090 to 1,260cC (2,000 to 2.300T ) 3. Low-fusing: 870 to 1,065DC (1,600 to 1,950°F)
  • 6.  All ceramic crown- PJC by Land [1886] PJC with inner core of aluminous porcelain Twin Foil Technique Castable glass ceramics Shrink Free Ceramic crown IPS Empress In-Ceram
  • 7.  Introduced by Sadoun (1985) Core material is alumina Manufactured by Slip casting, sintering, Glass absorption. Conventional porcelain applied to the core to give final contour and colour. Greater compressive strength than IPS Empress but lesser than Metal ceramic. Recommended for short span three unit anterior FPD.
  • 8.  Ceramic crowns may be cemented with zinc phosphate, glass ionomer. or a dual- polymerizing resin cement such as Enforce with Fluoride. Ceramic crowns that have been etched internally and bonded with a composite resin cement are 50% stronger than similar crowns cemented with zinc phosphate cement.
  • 9. THANK YOU!!!

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