Zirconium oxide, The material by jwc45040


									  Ceramic framework + veneering ceramic
                                                          Actual patient case                                                                                                                                             Zirconium oxide,
A special high-strength ceramic material is used to       Dentistry by Dr. Urs Brodbeck; Zürich, Switzerland
manufacture a crown which covers the prepared                                                                                                                                                                             The material
tooth structure. With ZENO® Tec this is a coping made
out of zirconium-oxide, a material exceeding certain
dental alloys in strength. This coping is then covered-                                                                                                                                                                        Zirconium oxide
or veneered- with a special type of ceramic like                                                           The 10-unit Zirconium-
ZIROX®. The dental technician will take the individual                                                     oxide frame (ZENO® Zr)                                                                                            Zirconium dioxide is a high
oral situation like shade, occlusion and abrasion cha-                                                     during the trial in                                                                                                strength ceramic material, which
racteristics into account and create the most esthetic                                                     procedure.                                                                                                         is, for example, used in aerospace
and biocompatible restoration. The materials and                                                                                                                                                                              technology. Chemically it is a
skills will make it indistinguishable and perform                                                                                                                                                                            composition of the rare element
sometimes even better than natural teeth.                                                                                                                                                                                    Zirconium and oxygen, formulated
                                                                                                                                                                                                                            ZrO2. Often it is referred to as
This veneering ceramic is especially formulated to be                                                                                                                                                                      Zirconium oxide or Zirconoxide.
softer than the supporting substructure in order to                                                                                                                                                                      Color: White – Ivory
avoid problems with the opposing natural dentition.                                                                                                                                                                     Hardness: High
                                                          The finally seated 10-unit
Just left on its own the substructure would be too
                                                          (ZENO® Zr) case, venee-
hard and abrasive.
                                                          red with Zirox porcelain.

  Applications                                                                                                                                                                                                ZENO ® Zr

Aluminum oxide and zirconium oxide ceramic                                                                                                                                                                  is the trademark for the Zirconium oxide
                                                                                                                                                                                                            discs for the ZENO ® Tec System.
materials have been used for over 20 years, in
medicine mainly for hip replacements. These mate-                                                                                                                                                           Even patients with allergies or an otherwise wea-
rials are of course fully biocompatible, because the                                                                                                                                                        kened immune system will most likely not suffer
main ingredients are partially the same minerals           Your Dentist                                                                                                                                     from any negative reaction related to the ZENO® Zr.
                                                           Compliments of your dental laboratory                                                                                                            ZENO® Zr does not have any electrical conductivity
found in bone-structure.
                                                                                                                                                                                                            and therefore no electrical potential, acting as an
                                                                                                                                                                       Patient information                  For the same reasons ZENO® Zr offers optimized
                                                                                                                                                                                                            protection against the usually painful irritations
                                                                                                                                                                     Teeth made completely out of ceramic   inflicted by hot and cold sensations in the mouth.
                                                                                                                                                                                                            Corrosion is also not possible, therefore gingival
                                                                                                                                                                                                            reactions like the usual “black gum line” around
                                                                                                                                                                                                            the PFM-margin will definitely not occur.

                             m e t a l - f re e
                                                          WIELAND Dental +Technik GmbH & Co. KG, Schwenninger Str. 13, 75179 Pforzheim, Germany
                                                          Fon +49 72 31/37 05-0, Fax +49 72 31/35 79 59, www. wieland-international.com

                  p re c i s i o n m a d e                WIELAND Dental Systems, Inc., 282-A Quarry Road, Milford, CT 06460
                                                          Fon 203-877-8688, Fax 203-877-8688, TOLL FREE 866-876-0885
CAD/CAM                                                How are full ceramic restorations, using advanced
                                                       ZENO® Tec Cad / Cam technology, manufactured?
in Dentistry
The newest technology developments are just                                      The dentists takes an            Once the whole design               The technicians will use
recently allowing these new hi-tech materials in       1                         impression, replicating      4   process is finished, all     7      their craft and skill to
dentistry. This computer aided mechanized manu-                                  the situation in the             the data is sent to the             create the most natural
facturing procedure is assuring the most consistent                              mouth with a model               ZENO® Tec milling                   and esthetic restoration
and highest quality standards.                                                   (pic 1).                         machine.                            by completing the indivi-
                                                                                                                                                      dual case with different
                                                                                 This very precise model          The ZENO® Tec milling               kinds of tooth-imitating
                                                                                 is then placed into a            machine (pic 4) will now            ceramic powders (pic 7).
                                                                                 sophisticated laser and          use this data to mill the
                                                                                 camera supported scan-           most precise restoration            This masterpiece is then
                                                                                 ner (pic 2), which re-       5   out of a unique and          8      fired in a special ceramic
                                                                                 creates a 3-dimensional          patented Zirconium                  furnace, thus developing
                                                                                 picture accessible by            ZENO® Zr disc (pic 5).              its tooth like vitality
                                                                                 computer and visible             Finally, these objects are          and esthetics.
  CAD                                                                            on the screen (pic 3).           then cut out and sinte-
                                                                                                                  red in a special high               Finally the dentist can
CAD stands for Computer Aided Design. The indivi-      2
                                                                                 The restoration is now           temperature furnace.                place this state of the
dual restoration is designed with the help of the
                                                                                 designed with the help                                               art ZENO® Tec restoration
most advanced computer aided technology at a
                                                                                 of the computer, similar         Then the crown and                  into the patient’s mouth.
                                                                                 to procedures used in        6   bridge substructure is
  CAM                                                                            the automotive and               ready to be veneered
                                                                                 aerospace industry.              (pic 6) with a special
CAM stands for Computer Aided Manufacturing.
                                                                                 With ZENO® Tec there             tooth like ceramic
The restoration is manufactured by the most
                                                                                 are virtually no limitati-       material as ZIROX®.
accurate and precise hi-tech milling machine
                                                                                 ons to that restoration,
(CNC) as used in the aerospace industry.               3
                                                                                 the technician can
                                                                                 design single crowns as
                                                                                 well as the most elabo-
                                                                                 rate bridgework.

Clinical and material science studies confirm the
long-term reliability and success of zirconium
oxide as a material for even posterior restorations.

                                                                                                                                                   Finished case

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