Metal Fused to Porcelain Molar Crowns

Discussion in 'Dental Archive' started by DIMMs, Apr 5, 2006.

  1. DIMMs

    DIMMs Guest

    Is it possible for such crowns to have the aesthetics of a full porcelain
    crown?

    I read about Captek crowns. Are these as good, aesthetics-wise, as say
    In-Ceram Alumina or Cercon?
     
    DIMMs, Apr 5, 2006
    #1
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  2. DIMMs

    Joel344 Guest

    DIMMs Wrote:

    Captek is fired over a gold alloy that has a
    warmer hue than the steely gray cast of a
    regular PFM (porcelain-fused-to-metal).

    Now with darker shades, say B1 that is never
    a problem but with lighter shades say A1, the
    technician must mask the steely gray metal first.

    This compromises esthetics.

    If its in the front, use Captek.

    The difference is cost is minimal.


    Joel

    PS~ This advice is for dentists not patients .....
    after all, its the dentist's decision and if it turns
    out bad its the DENTIST's problem not the patient's .....
     
    Joel344, Apr 5, 2006
    #2
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  3. DIMMs

    DIMMs Guest

    Thanks to all who replied.
    I was told if I wanted to get a fully ceramic crown for a molar, the only
    suitable material is Cercon, as Empress 2 and In-Ceram Alumina are not
    strong enough. However it seems Cercon itself is rather opaque to the
    detriment of aesthetics. Another dentist I spoke to thinks In-Ceram is fine
    to use.

    Any thoughts?
     
    DIMMs, Apr 5, 2006
    #3
  4. DIMMs wrote:
    Empress was designed as a very cosmetic material, but it was a little
    low on strength. Still, I know many dentists have used it for front
    teeth with good success. I believe (not sure) that Empress 2 is
    supposed to be stronger--it may be similar to Procera, which certainly
    is stronger than Empress. One of its selling points is that it can be
    cemented with traditional cements, rather than bonding in place
    (required for original Empress). I've done Procera restorations and
    they are plenty cosmetic. They supposedly aren't as beautiful as
    Empress, but I really can't see much difference.
    None of these materials are indestructible--not even porcelain fused to
    metal. I have a patient who fractured the porcelain off a bridge
    abutment of a porcelain/metal bridge two weeks ago. The bridge is maybe
    2 1/2 years old. I tried repairing it in the mouth, but my luck with
    these intraoral repairs isn't good, and the bridge will likely have to
    be replaced. It may have failed because the patient bit on something
    the wrong way, or there may have been a flaw in the porcelain firing at
    the lab. You can't always tell why porcelain fails, but all of them
    fail occasionally.
    What I don't want to do is ask too much of these materials. Most of
    them will work with single crowns; though In-Ceram has been used for
    multiple units (bridges) I am far from ready to use any of these
    materials for bridges--I've heard too many sad, sad stories. But unless
    you have habits such as chewing on ice, chicken bones or blasting caps,
    all of these materials have a high likelihood of holding up for single
    crowns.

    HTH,
    Steve
     
    Mark & Steven Bornfeld, Apr 5, 2006
    #4
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