Hybrid implant abutment

Hybrid implant abutment

Hybrid implant abutment IDT 2012 Vol 3 Issue 6 – a Ti-Zi or Ti-emax hybrid  3M and several others have.

Pressed emax abutment luted to Ti abutment IDT 2013 Feb
  1. Ti base and chimney (4mm and emax part no more than 2x chimney height) sandblast 50 um
  2. Universal primer like Monobond Plus
  3. Custom stained Emax abutment – HF etch and Monobond Plus
  4. Opaque shade of LC cement extra oral
  5. Clean, HF, phosphoric etch, silane, bond, emax abutment and emax crown

Why need at least 4mm for hybrid implant abutment?

This restoration developed inflammation circumferentially after about 6 years.  Upon removal it was discovered the metal and zirconia had separated.  This design only had 1mm of metal friction fitted into the zirconia portion.

zirconia hybrid abutment failure

Far superior design to the above.

hybrid dental implant abutment

3M (far right) tests better than other hybrid style abutments (IMHO its’ because you have Ti-Ti as an implant-abutment interface) Kim April 2013 JPD

custom implant abutment
custom abutment

Why do you not use pure zirconia abutments?

Pure zirconia for a dental implant abutment is not a good idea for two main reasons.  First of all the abutment is more likely to fracture.  The second is that the two materials will wear against each other and will damage the internal aspect of the dental implant.

Zirconia abutment damages the internal aspect of the dental implant more than titanium abutment.  Gehrke JPD 2016

Material Research IJOMI=The highest fracture resistance was obtained with titanium abutments restored with emax crowns.  Study was repeated in JADA

Zirconia on Ti stronger than zirconia Stimmelmayr 2013 Chun 2015 JOMI

Hybrid abutment with porcelain stacked on titanium

hybrid implant abutment

ceramic titanium abutment

                                                        

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