Buccal defect: how to deal with this?

I recently extracted a #9 [maxillary left central incisor; 21] which had a failing post crown. The extraction was atraumatic and relatively uneventful (controlled force use of periotomes and luxtaors). The buccal cortical plate was left intact without any evidence of fracture. About 10 weeks later a flap was raised and a v-shaped buccal defect in the bone was encountered. Unfortunately I had no Vital Fortoss at hand to graft the defect. I installed a 3.75×11.5mm implant fixture and sutured the flap. Approximately 3-4mm of threads were still exposed. Bone was scraped from the surrounding area to cover the threads but this was only a small amount of bone. I would appreciate some advice on how best to proceed. The post radiograph looks great. But I know that the coronal portion of the buccal plate is not continuous. Would it be reasonable to re-enter the site in 6-8 weeks and place a good layer of Fortoss over the threads and then wait another 4-6 months before restoring?

16 Comments on Buccal defect: how to deal with this?

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Sb oms
8/17/2013
Get some inventory please, if you are going to be placing implants, that's the first step. It's not fair that this patients outcome was poor due to your lack of planning. This is an anterior case. You can't afford to have it not go well. Open up ASAP and graft accordingly. The buccal crestal bone is crucial for anterior implants!!! You sound like you've had some experience with fortoss- that's an allograft, right?? You need to do a proper gbr, and there are many techniques available. But do it right away for your patients sake. If you can't, refer to someone who can.
CRS
8/17/2013
For consistant results always graft the extraction sites with failing fractured posts especially in the anterior maxilla. Let them heal. I recommend human allograft since it is easier to drill thru and gives a natural result. Then place the implant possibly with a CT graft if needed. The implant will only be as good as the base bone especially in the maxillary anterior. It is not wise to cut corners on site preparation anywhere it will come back to haunt you. This site is full of complications on poorly prepared implant sites. This is tissue biology not technical dentistry like a core build up. Sb OMS has good advice, hopefully the residual bacteria in the failed implant are no longer present and it will heal. You compromised the result and that buccal crest will not grow back well in this area. The crest is important for long term stability other wise get out the pink porcelain. As a big fancy oral surgeon I routinely tell my patients that I do not know what I will find when I enter a site and may have to graft first for a better result they appreciate the extra time and concern. I also tell them that I don't know if an implant is integrated until I uncover it. Surgery is very humbling and I try to do my best to get a good result, we can't control healing. Y
Sper
9/5/2013
Please tell me, how do you get paid, upon praxis or upon success of each case? I recently started to make written agreements between me and the patient as it is not easy to explain % of non osseointegration or ridge absorbment, believe me.So, how do we get paid?
hamer
8/17/2013
Thanks for the advice.But like all of us, I am forever learning and want improve. I have since spoken to an oral surgeon colleague who recommended that I open the site and place Bio-Oss and a membrane and then aim to restore in 4-6 months. He even suggested Fortoss was fine, but he generally uses Bio-Oss hence his preference. I'll be seeing the patient next week so will aim to graft at the next visit. Anymore constructive comments and advise as always would be appreciated especially with regards to choice of material.
CRS
8/18/2013
I hope that my comments are taken constructively, instead of working backwards to correct a problem, prepare the site optimally first then place the implant. I get that the procedure is already done and you got the fix from your colleague. Since you stated that you are forever learning then simply change the order of this treatment learning that the site needs to be prepared first. It is a consistent problem on this site which can be avoided. Leaving 3-4 mm of exposed implant with a v shaped defect then placing a patch four months later would not be my first choice. The implant width seems too small on a central but I don't have a film. My advice is given with good intent when I hear a defensive response, deep down I think you know what needs to be done. Please post the final result to see how things tuned out. Thanks for reading
Thomas VanBuskirk
8/21/2013
In anterior implant cases the buccal plate is crucial to success. Site developement is the best investment toward preserving the buccal plate which is perilously thin. I have placed and restored implants for over twenty years. My observation has been that small diameter implants placed at least 3mm from the buccal plate and deep yield the best cosmetic results. This allows for plenty of room to develope emergence profile and tissue support. My humble opinion, but echoed by the likes of Tarnow and Salama.
Peter Fairbairn
8/19/2013
Hi Hammer , there are a number of factors with all of this and maybe need to get more of a basic understanding of what you are trying to acheive and how the body functions . As you will know I have used Fortoss Vital for about 10 years ( It is an Alloplastic material , BTcP in a CaSO4 matrix so the graft is its own membrane ) . In this tiem I have done about 2,000 grafts , and 5 research papers including and animal study with the material although I do not use it anymore as have found another material that moves things on significatly results wise . Firstly root fracture of a post retained crown , ALWAYS and issue buccally and infected site as well . The buccal plate is as well bundle bone dependant on PDL blood nutrients which is disrupted with tooth removal. So a defect will exist as you saw at 10 weeks post xla . The protocol with the use of Vital was not followed and the outcome bears witness to this but it can be repaired and a specific protocol is required . Never be short of materials or Implants leading to the "iI will use what I have" philosophy , Implantology cannnot be a "part time " affair . Maybe e-mail me as or get someone to help you a bit . I think the 2 well known ,very capable surgeons above have said it all . Regards Peter
Paul
8/19/2013
Hi Peter, Thank you and CRS/Sb for your responses. I started using fortoss a few years ago after it was recommended on an implant course and also after reading some of your research papers and doing my own background reading. I really wasn't expecting to see the defect especially after such a relatively straightforward xla. But then again a lesson has been learnt to ensure that I have whatever I might need to hand to help in situations like this. It would be great if I could have your email address to drop you a line as I would be interested in which material you prefer to use nowadays and how best to manage this case.
peter Fairbairn
8/19/2013
Hi Paul , just e-mail me at Scarsdale Dental address and we can arrange something . We are all always learning ! Peter
CRS
8/19/2013
Peter as always you state things so well!
miles
8/20/2013
Hi Peter, I was wondering what you preferred for socket preservation/augmentation if Vital was indicated- what do you use now? Thank you for your help
gary weider
8/20/2013
HI, I too am interested in what you are using now and maybe why? Can you send me some information. Thanks Gary R Weider DMD, FAGD, AF-AAID
Peter Fairbairn
8/21/2013
Hi Miles , Vital is a good material and we are showing 2 Posters at the EAO using it in Socket Grafting with great results . In difficult open large sockest I have used Easygraft as closure is not important but have been working on something else as well . Peter . Gary e-mail me please
hiten
8/24/2013
Hi Peter Would love to find out what you use currently as your Bone graft material of choice. Thanks
Paul
8/20/2013
Hi Peter, I've sent you an email at Scarsdale. Hope to hear from you soon.
Jeff Khoury
8/21/2013
Hello there, Definitely you need to do a gbr here. You can use bioss, encore etc.. But with a resorbable membrane and with pins or screws to fix it. Always fix your membrane and trust me you will have much better results. Since you are doing a gbr in the esthetic zone i would recommend you to do also a gum graft at the same time . If you read all the articles (kan and al or others) about this subjet, you will be much more convinced. Like they said before, plan everything, do a cbct of the region, even for a single tooth . Good luck with your treatment

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