Subscribe!
Implant Abstracts
Implant Cases
Ask UsZirconia Abutments: Crowns Debonding and Dislodging?
posted
in
Abutments, en
Print This Post
« Implant Thread Design: Influence on Osseointegration? | Implant Training and the Latest Implant Techniques and Systems »
Anon asks:
I have recently started using titanium-nitride coated and zirconia abutments. I have seen more of my crowns debond and dislodge from these kinds of abutments than the previous abutments. I am not doing anything different. Same cement and same protocol. Have any of you experienced this? What is causing this?
Featured Sponsor
Free Daily Email Alert Click Here>>
Get OsseoNews.com Comments delivered daily! Click Here to subscribe.
Sat May 17 2008
FREE Weekly Email
Keep current on the latest dental implant discussions! It's Free!
>>Click Here to Subscribe to OsseoNews.com Now!
-
Hot Topics
-
Editor Picks
-
Patient Issues
- Cone Beam CT
- Mini Implants
- Bone Grafting
- Oral Bisphosphonates
- Sinus Lifts
- Implant Complications
- Immediate Loading
- Overdentures
- Nobel Biocare
- >>See All Main Topics
Sponsor
6 Responses to “ Zirconia Abutments: Crowns Debonding and Dislodging? ”
Titanium nitride has a high degree of lubricity. Great for cutting tools, not so good to bond to. Are you sure about the coating? Some titanium abutments are gold colored by anodizing, the short Straumann solid, for example. Who’s the abutment manufacturer?
The next question is; Where does the debonding occur? Does the remaining cement adhere to the restoration or to the abutment? What cement does the abutment manufacturer recommend?
You could also try air abrading the parts that don’t bond well (carefully protecting margins and other exposed junctions.)
I am a territory rep for an implant company. I get this question often. Recently, I sat in on a case with a Dr. who was performing this procedure. He has been utilizing Amalgam Bond, following the dentin procedure. The results have been great!! I must tell you that my company recommends no specific cement for zirconia restorations.
Hello fellow collegues, First problem manufacturers have no recommendations on these products… secondly traditional bonding techniques ex. dentin bonding agents can’t work they are specifically for dentin… in addition the abutment should have some anti-rotation affect built in ex. flat mesial and dital walls,, but definitely not “round” …( Lab must be talked to about this) micro-etching definitely helps..Cemented over 240 ceramic and zirconia abutments I now use durelon for permanent cement and temrex for temporary cement. This has been working for years for our practice but Durlelon is not in “vogue” so I rarely share this info…BTW have my paper coming out on this look for it in PPAD… any questions… email to drdean17@aol.com… hope this helps..
Please explain more clearly.Assuming you are talking about a lab produced zirconia bonded to titanium abutment[similar to Zireal abutment from 3i],do you mean the zirconia part of the abutment is debonding from the titanium or the crown debonding from the abutment?
Dear Anon, please would you give a bit more detail. It sounds like your crowns are not bonding to the abutment? Are you using a zirconia abutment with a porcelain bonded to zirconia crown on the abutment?
Leave a Comment
Note: Please refrain from ad hominem attacks, and promotional comments. Outside links are not permitted in comments. Though we require an email to route questionable comments to our editors, we will NEVER publish your email or use it for any other purpose. Thank you for your understanding.
Note: At times your comment may not appear on the website immediately, because it has been sent to our editors for approval. Once approved, we will publish the comment. There is NO need to resubmit your comment, if it does not appear on the website immediately.