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<strong>Chapter</strong> <strong>5.</strong><br />
<strong>Guide</strong> <strong>to</strong> <strong>the</strong> <strong>veneering</strong> <strong>of</strong> <strong>JUVORA</strong><br />
<strong>with</strong> <strong>milled</strong> <strong>ceramic</strong>, <strong>zirconia</strong> <strong>or</strong> e.<strong>max</strong>
Example: How <strong>to</strong> combine <strong>JUVORA</strong> <strong>with</strong> individual<br />
prepared <strong>zirconia</strong>/<strong>ceramic</strong>/e.<strong>max</strong> crowns<br />
A step by step guidance
The example<br />
All-on-4 implant supp<strong>or</strong>ted pros<strong>the</strong>ses<br />
Material f<strong>or</strong> <strong>the</strong> mastermodel: Gypsum<br />
Bridge from 16 – 26<br />
Material f<strong>or</strong> <strong>the</strong> framew<strong>or</strong>k: <strong>JUVORA</strong> Dental Disc<br />
Zirconia single crowns,<br />
The combination is also possible<br />
<strong>with</strong> e.<strong>max</strong> <strong>or</strong> <strong>ceramic</strong> crowns.
The preparation <strong>of</strong> <strong>the</strong> <strong>zirconia</strong> crowns<br />
The inner surface <strong>of</strong> <strong>the</strong><br />
crowns will be roughened <strong>with</strong><br />
aluminiumoxide: 110µ -<br />
125µ/2 bar.<br />
Afterwards, <strong>the</strong> crowns will be<br />
cleaned <strong>with</strong> a steamer
The preparation <strong>of</strong> <strong>the</strong> bonding<br />
Application <strong>of</strong> <strong>the</strong> “silane“ (ESPE Sil) <strong>to</strong> <strong>the</strong> <strong>JUVORA</strong> PEEK framew<strong>or</strong>k.<br />
No additional treatment f<strong>or</strong> <strong>the</strong> crowns required, only sandblasting.<br />
Ventilating time 10 min – 20 min.<br />
No opaque paste is required.
The application <strong>of</strong> adhesive cements is recommended<br />
In our sample, we used <strong>the</strong><br />
adhaesive system from ESPE:<br />
3M ESPE „Nimetic Cem“<br />
O<strong>the</strong>r possible adhaesive systems:<br />
RelyX Ultimate<br />
Rely X Unicem<br />
Variolink II<br />
Panavia F
Application <strong>of</strong> <strong>the</strong> adhesive<br />
Mixing <strong>with</strong> each o<strong>the</strong>r<br />
acc<strong>or</strong>ding <strong>to</strong> <strong>the</strong> guide <strong>of</strong><br />
<strong>the</strong> producer.<br />
Thin application<br />
<strong>of</strong> <strong>the</strong> cement.<br />
The adhaesive <strong>with</strong><br />
two components.
Curing time acc<strong>or</strong>ding <strong>to</strong> <strong>the</strong> processing guide <strong>of</strong> <strong>the</strong> producer.<br />
Removal <strong>of</strong> <strong>the</strong> adhaesive splits<br />
<strong>with</strong> alcohol and a cot<strong>to</strong>n ball.<br />
Insertion <strong>of</strong> <strong>the</strong> crown.<br />
The surplus materila has<br />
<strong>to</strong> be removed<br />
completely.
Treatment <strong>of</strong> <strong>the</strong> screw retained positions<br />
The screw retained positions will be<br />
treated by <strong>the</strong> dentist:<br />
The insertion will done <strong>with</strong> “Temp<br />
Bond“ cement, prepared f<strong>or</strong> <strong>the</strong><br />
“recall“ <strong>of</strong> <strong>the</strong> patient.<br />
The crowns have <strong>to</strong> be removable.
Removal <strong>of</strong> <strong>the</strong> unnecessary adhesive<br />
The unnecessary adhaesive<br />
will be carefully removed by a<br />
fine burr, <strong>the</strong> level <strong>of</strong> te tissue<br />
will be adapted.
Preparation f<strong>or</strong> sandblasting <strong>of</strong> <strong>JUVORA</strong><br />
In preparation f<strong>or</strong> <strong>the</strong> sandblasting<br />
treatment <strong>of</strong> <strong>JUVORA</strong> and <strong>the</strong><br />
bonding system, <strong>the</strong> crown should<br />
be covered <strong>with</strong> wax.
The used bonding system<br />
In this described guidance we used <strong>the</strong><br />
combination <strong>of</strong> ESPE, “Rocatec Plus“ and “ESPE<br />
Sil“ f<strong>or</strong> <strong>the</strong> bonding treatment (one <strong>of</strong> <strong>the</strong><br />
<strong>JUVORA</strong> bonding systems is recommended)<br />
Application in a thin layer f<strong>or</strong> <strong>to</strong> avoid any<br />
puddles.<br />
Ventilating time: 10 – 20 min.
Application <strong>of</strong> <strong>the</strong> gum coloured opaque
Light curing <strong>of</strong> <strong>the</strong> opaque paste<br />
Light curing time: 180 seconds, no vacuum
Isolation <strong>of</strong> <strong>the</strong> removable crowns<br />
The crowns in combination <strong>with</strong> <strong>the</strong> screw retained implants have <strong>to</strong> be<br />
removed from time <strong>to</strong> time (patient recall), it is imp<strong>or</strong>tant that <strong>the</strong>y will have not<br />
any chemical connection <strong>with</strong> „gum flow“.<br />
A silicon isolation liquid (thin layer)is very helpful, it prevents any chemical<br />
connection.
Application <strong>of</strong> gum flow<br />
The application <strong>of</strong> <strong>the</strong> gum<br />
material can be done <strong>with</strong> a<br />
liquid gum flow.<br />
The modeling <strong>of</strong> <strong>the</strong> gum<br />
happens <strong>with</strong> a smoth brush<br />
and alcohol.
Final polymerization<br />
The final polimerisation can be done <strong>with</strong> <strong>or</strong> <strong>with</strong>out vacuum.<br />
Time: 10 minutes
Finish and polish<br />
The finish <strong>of</strong> <strong>the</strong> denture happens indivdual by <strong>the</strong>dental technician.<br />
There are different ways <strong>to</strong> achive a high gloss surface.
The finished pros<strong>the</strong>ses
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