etching zirconium

[Ruby]

Does any one know what to etch a zirconia wing bridge with. So far I hear Rockateck by 3M. Is there anything else I could use?

 

[kimba]

acid etching as such will not roughen the dense surface. But most resin cements now have surace treatment agents which will allow a bond to zr

 

[hammerhead]

Does any one know what to etch a zirconia wing bridge with. So far I hear Rockateck by 3M. Is there anything else I could use?

That would be all you need
Been using this material 7 yrs without 1 failure

 

[Affinity]

There is a bonder from heraeus.. forget what its called, too lazy to look
Never used it

 

[chickenlicken]

Just back from ids in cologne. On the tanaka stand they had a stay on glaze that supposedly chemically bonds to the zirconia. You spray it inside the crown where it has a space for die spacer, you remove the glaze spray around the margins so as not to affect fit. Once fired you can then etch the glaze and e dentist can then etch and bond.

 

[Rune]

We use zirconia primer. There are several manufacturers.

 

[jackjabbour]

Z-Prime.....I think?

 

[NathanNever]

Zirconium oxide hasn't a glassy phase therefore is not etchable.

 

[karabear]

I've heard mentioned painting a thin layer of glaze in a slighter loosely fitted restoration. My boss is insistent upon etching. Has anyone tried the Tanaka spray? I am sure this has been posted before, but I can't remember for which posts.

http://www.dentaladvisor.com/clinical-evaluations/asset_upload_file834_11680.pdf

 

[jgradygdl]

one of my customers is using bisco

 

[karabear]

one of my customers is using bisco

Are you referring to Bisco's Z-Prime?

 

[ps2thtec]

Ivoclean

Anyone aware of this product, a concentrated zirconia solution used to wash the phosphate groups in saliva that bond to crown during tryin that do not rinse out with water.

 

[cloe]

Zirconia can't be etched and bonded because of lack of silicon of the glass ceramics. Sandblasting will create micro cracks and is not recomended and acid has no effect on zirconia.I agre with kimba about the cements they aree in use.

 

[NiceOne]

Bonding to Porcelain-Glazed Zirconia: Effects of Surface Treatment
Friday, March 22, 2013: 10:45 a.m. - 12:15 p.m.
Location: Room 612 (Washington State Convention Center)
Presentation Type: Oral Session
S. SARRAMI, Comprehensive Dentistry, University of Texas - San Antonio / Health Science Ctr, San Antonio, TX, N. BARGHI, Restorative Dentistry, University of Texas at San Antonio, San Antonio, TX, and H.R. RAWLS PHD, Comprehensive Dentistry/Research, University of Texas at San Antonio, San Antonio, TX

Objective : To examine the effect of various surface treatments on the bond strength of composite resin to zirconia covered with etchable glazed porcelain.
Method : Square-shaped specimens (12mm x 12mm x 2mm) of a commercially available zirconia (NEXSZER Zirconia, Sage Max, AA, 98001) were fabricated and sintered according to the manufacturer’s specifications. Specimens were placed in four groups. The first group (A) served as an untreated control. The specimens of the remaining three groups were coated with a commercially available spray glaze (Z-Luster, Tanaka Dental) at a distance of 8 inches for a about 3 seconds. Sprayed specimens were fired to 990°C under vacuum with one minute of holding time. The three groups of sprayed specimens received the following treatments: (B) no treatment; (C) silane (BisSilane, Bisco Inc., Shamburg, IL); (D) silane and etch with 9.6% hydrofluoric acid (Porcelain Etchant, Bisco Inc., Shamburg, IL). Specimens were bonded to composite resin (Z-100, 3M ESPE) using an UltraDent shear bond fixture. Shear bond strength (SBS) tests were preformed with an Ultra Tester (UltraDent Product Inc.) at a crosshead speed of 1mm/min.

Results : Resulting mean shear bond strengths in megapascals (MPa ± sdev) were as follows: Group A, 0 ± 0; Group B, 2.5 ± 2.0; Group C, 6.5 ± 4.7; Group D, 13.2 ± 3.6. Significantly higher bond strengths (ANOVA, p<0.05) were measured with etching and silanization.

Conclusion : The bond strengths of composite resin to zirconia covered with glazed porcelain is significantly increased by etching and silanization.

Student Presenter This abstract is based on research that was funded entirely or partially by an outside source: Bisco Inc.

 

[Affinity]

Glazing at 990c??

 

[browncharles]

Does any one know what to etch a zirconia wing bridge with. So far I hear Rockateck by 3M. Is there anything else I could use?

To know about any zirconia visit this link http://www.daltechsystems.com/producttype/zirconia-milling/

 

[Jurim]

I use ivoclean all the time, it's the best to decontaminate before I deliver my restorations after trying them in.
This study is stupid, they are etching and silinating the glazed surface, not the zirconia surface. Zirconia does not have any silica to etch

 

[Jurim]

I use ivoclean all the time, it's the best to decontaminate before I deliver my restorations after trying them in.
This study is stupid, they are etching and silinating the glazed surface, not the zirconia surface. Zirconia does not have any silica to etch

 

[KentPWalton]

You can't etch Zirconia.