Hybrid implant abutment
Hybrid implant abutment IDT 2012 Vol 3 Issue 6 – a Ti-Zi or Ti-emax hybrid 3M and several others have.
- Ti base and chimney (4mm and emax part no more than 2x chimney height) sandblast 50 um
- Universal primer like Monobond Plus
- Custom stained Emax abutment – HF etch and Monobond Plus
- Opaque shade of LC cement extra oral
- 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.
Far superior design to the above.
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
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
Hybrid abutment with porcelain stacked on titanium