Dentalnews (en)

Differences in dental implants

Posted by Dental News Team On February - 4 - 2010

The good in your jaw, the bad in …?

Is there just one good implant system, or are all equally good?
Generally, it can be said that the systems currently on the market are by and large the same when it comes to effects on bone healing.
Although implant manufacturers advertise exceptional surfaces which supposedly speed up the healing process for bone, in practice and as shown by studies there is hardly any noticeable or proven difference. Depending on the quality of bone, dental implants take 0-3 months to heal completely, and even a little longer after operations involving bone reconstruction.
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When it comes to quality, what matters is the design of implant crowns. The dental crown is not directly connected to the implant, but rests on an intermediate layer, called an abutment (the red arrow in the picture).
The abutment is usually set onto the implant and screwed into place. This connection has its weak points, however. Some companies, such as Astra or Ankylos opted for a conical connection – and they turned out to be right!
More on this topic here !
Source: 2009_Implant-Systeme (Implant-systems)

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Implants, Bone reconstruction, Upper jaw

Posted by Dental News Team On November - 26 - 2009

What happens when a dental implant sticks out into the maxillary sinus?

ausgangssituationImplants and bone reconstruction!
In order for dental implants to hold securely you need to have enough bone. But if a patient has been missing teeth for too long or suffered periodontitis, often there is not enough bone left in the upper jaw. An operation designed to reconstruct bone – called a sinus lift -  has to be performed before implanting.

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Bone reconstruction in the upper jaw
Despite the most careful planning, implants sometimes end up sticking out into the maxillary sinus. Patients must be informed, as a lot of them get dental implants without realizing that the maxillary sinus got damaged in the process.

kieferhoehle_implantateIs there a greater risk of losing an implant?
Sinus infections may represent a risk, even during a common head cold, implants may get infected due to the lack of a protective bone layer. Then you can lose an implant.
The picture shows a patient with implants in her upper jaw (to the right in the picture). The implants (black) clearly stick out into the maxillary sinus (blue). The patient was not told about this problem – even though the implants stuck out from the very beginning. The operation took place three years ago, right now there are no inflammations around the implants – but there are some in the rest of the teeth!

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Dental implants can be hazardous to your health!

Posted by Dental News Team On November - 18 - 2009

As promised, today we shall give you a detailed explanation of yesterday’s implant x-ray!

What are the problems that should have been fixed before implanting, but weren’t?

implantation_erklaerungLet’s begin with the diagnosis:

  • Localised periodontitis (the red streak in the upper jaw on the left outlines the bone), it is obvious that in this area the bone has receded due to inflammation; periodontal treatment should have been performed before implanting.
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  • Infected bone in several places (red circles); these infections should also have been treated before implanting.
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  • Several teeth which received very poor root treatment (red arrows); root treatment should have been redone – correctly
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  • A tooth, probably dead, which is causing an inflammation in the maxillary membrane (blue arrow and blue line); root treatment followed by general treatment of the entire maxillary sinus would have been the right thing to do

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Implants, in and of themselves, are an excellent way to provide your jaw with a permanent denture. However, you do have to make sure that the mouth is well prepared and there are no other problems which would prevent the implant from settling in properly!

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Dental implants at any cost

Posted by Dental News Team On November - 17 - 2009

Dental implants may be hazardous to your health!

implantationThis female patient received dental implants at a clinic in a large European city 2 days ago. Before the implants were inserted, she informed her doctor that she felt pain in her jaw every once in a while – in various places. The dentist replied „we’ll take care of that later …“
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Question is, when? It would have been much better practice to „clean up“ the patient’s jaw before inserting an implant, as inflammations in the mouth can lead to implant loss.
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Tomorrow we will explain the x-ray to you in detail, until then you can try to figure out where the problems are. In order to „read“ the x-ray correctly you will simply need to watch the following video.

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Receding bone around implants

Posted by Dental News Team On November - 13 - 2009

Receding bone around implants

implantat_knochenabbauBone sometimes tends to recede slightly around implants. You may not even feel any pain!

About 0.2 mm a year is considered „normal“. This is usually attributable to the implant system used, for example Astra® and Ankylos® implants hardly cause any recession at all. Actually, these systems often cause bone to accrue beyond the head of the implant, due to the conical connection of the abutments. Watch a video on this topic here.

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If bone recedes more than 0.2 mm, this may be due either to a bad positioning of the implant or an inflammation. Dentists call this peri-implantitis. This can only be treated in the initial stages, making regular check-ups‚ called re-calls, after implantation a must. This can help save your implant!

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An x-ray plainly shows the outlines of the bones.

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Watch a video on dental implants here!

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