Projektseite der Selbsthilfe-Gruppe für Zahn-Implantat-Opfer
Forschungsprojekt von Betroffenen und Angehörigen


 2014 Mar 3;97(2):96-106. doi: 10.1016/j.lfs.2013.11.008. Epub 2013 Nov 16.
Titanium and zirconia particle-induced pro-inflammatory gene expression in cultured macrophages and osteolysis, inflammatory hyperalgesia and edema in vivo.
Obando-Pereda GA1, Fischer L2, Stach-Machado DR1.

Zahnimplantate sind eine tickende Zeitbombe
Auszug aus dem Artikel: (...) «Ich fürchte, da kommt ein GAU auf uns zu», sagt Thomas Imfeld, Professor an der Klinik für Präventivzahnmedizin der Universität Zürich. «Am Anfang hat man die Periimplantitis nicht so ernst genommen, doch inzwischen ist dies ein grosses Thema.» Sogar von einem «Tsunami» spricht Georg Bach, Vorstandsmitglied der Deutschen Gesellschaft für Zahnärztliche Implantologie. «Die Hersteller reden nicht gerne darüber. Früher wurde ich sogar von Kongressen ausgeladen, wenn ich zu diesem Thema ein Referat halten wollte», sagt Bach.

Teure Infektionen bei Zahnimplantaten
Jeder dritte Patient mit einem Zahnimplantat braucht
innerhalb von zehn Jahren eine Behandlung wegen einer Entzündung.

Mediziner suchen nach Therapien für die lange Zeit unterschätzte Komplikation.

Fälle / Diskussionen von Zahnimplantatopfern in Diskussionsforen

Zahnimplantate sind alles andere als harmlos


Zahnimplantat-Opfer fordern

Sofortige Sistierung von neuen Zahnimplantat-Operationen.

Zahnimplantat-Hersteller werden gebeten freiwillig einen Fond
einzurichten für die Opfer von Zahnimplantaten.

Überprüfung der Geschäftspraktiken der Zahnimplantathersteller
und Anpassung der Gesetzgebung hinsichtlich Haftbarmachung von
Implantatherstellern und implantierenden Zahnärzten.
Sicherung von Assets zur Einrichtung eines Entschädigungsfonds.

Stand: 14. April 2014

Sammlung von wissenschaftliche Artikel /


Abstract & Hyperlink

Ken-ichi Fukuda, Tatsuya Ichinohe, and Yuzuru Kaneko, “Pain Management for Nerve Injury following Dental Implant Surgery at Tokyo Dental College Hospital,” International Journal of Dentistry, vol. 2012, Article ID 209474, 9 pages, 2012. doi:10.1155/2012/209474

Pain Management for Nerve Injury following Dental Implant Surgery at Tokyo Dental College Hospital

"By allowing reconstruction of compromised occlusion, dental implants contribute to an improvement in quality of life (QOL) and diet. Injury to a nerve during such treatment, however, can result in a sudden decline in QOL. And once a nerve has been injured, the chances of a full recovery are slim unless the damage is only slight. If such damage causes neuropathic pain severe enough to prevent sleep, the patient's QOL will deteriorate dramatically."



Neuropathic orofacial pain after dental implant placement: review of the literature and case report.

Persistent and chronic pain is more common in the head and neck region than in any other part of the body; therefore, dentists are more likely to encounter these rather complex cases in their practices. In this report, we present a brief review of neuropathic orofacial pain (NOP) that can begin after deafferentation of trigeminal nerve fibers after root canal treatment, apicoectomy, tooth extraction, or implant placement or idiopathically. A case of NOP occurring after a surgical implant procedure in a 62-year-old woman is presented. Continuous pain started 6 months after the placement of 8 dental implants in the maxilla, at the time of positioning the prosthesis on her implants. After being subjected to a physical examination and relevant complementary radiologic imaging, the patient was diagnosed with an NOP secondary to nerve impingement due to dental implant placement as well as myofascial head and neck pain.


Study shows dental implants may cause damage
Posted on 08/06/2012

Dental implants may cause preventable nerve damage, warn dental experts, as study highlights surgery risks

Experts from King’s College London have warned that cases of permanent nerve damage caused by dental implants could rise further if steps are not taken to address risks and prevent injury.  

"In 1997, approximately 10 per cent of all nerve injuries caused by dental work were associated with implants and this increased to 30 per cent in 2007."




Statments from dental-implant-victims describing permanent pain:

Pain After Dental Implant Surgery

November 3, 2006 at 6:08 am

(..) Im wondering if im regaining so much feeling back why is the pain still with me my doctor says its normal that regeneration is going on and it can be painful is he right or just telling me that to make me feel better………
Pleases help im just so tired of being in pain.

"Six months ago I had a dental implant put in on my lower left side a molar. The dr put the dental implant too low into my jaw and he backed it out. For 3 months I have been numb and now I am experiencing electric shocking, prickling and uncomfortable sensations. When I bite down on my left side it is pain. The dr that put the implants denies he did anything wrong. Now suddenly there is no paperwork for him to send to the 2nd opinion dr. it suddenly got lost. The expert dr. has determined now that I have Trigeminal neuralgia from the 3rd branch (...)"


Macky says:

"(Long story short… I had my first implant done early in 2007. It was the bottom center tooth (my 2 adult bottom center teeth never came in, so I have had a bridge there for over 10 years. Now, we are trying to put an implant in). I remember soon after that, I was in a lot of pain, which the surgeon said was not common."




Titanium and material related issues (note: nerve injury and chronic pain as described above also occurs when implanting a ceramic or zirconium implant)

Strange nerve damage symptoms after dental implant .

After placement of an upper pre molar implant last October I noticed a very strange 'taste' in my mouth and strange sensation on my face and in my mouth.  It was difficult to describe, but I went back to the dental surgeon who assured me that the implant had been placed properly and there was noinfection which he thought would cause a strange taste.


Dr. Lina Garcia

Titanium is NOT Biologically Inert 

"Titanium implants release metal ions into your mouth 24 hours a day, and this chronic exposure may trigger inflammation, allergies, and autoimmune disease in susceptible individuals. They are a precursor to disease. 

Cases of intolerance to metal implants have been reported over the years, and the removal of this incompatible dental material has resulted in reduced metal sensitivity and long-term health improvement in the majority of patients. 

Titanium has the potential to induce hypersensitivity as well as other immunological dysfunctions. 

One study investigated 56 patients who developed severe health problems after receiving titanium-based dental implants. These medical problems included muscle, joint, and nerve pain; chronic fatigue syndrome; neurological problems; depression; and skin inflammation. (...)"


Implants Can Exacerbate Autoimmune Diseases

Currently, implants continue to be done without biocompatibility testing, and they are often used in extraction sites where cavitations (inflammation) are already developing.


Common signs and symptoms of galvanic toxicity include:

  • A metal taste in your mouth
  • A sensation of an electric charge when using metal utensils
  • Chronic insomnia





trigeminus / nervus mandibularis / nervus alveolaris


more statements describing chronic pain from nerve tissue injury and other complications:


Dental Implant Impinged On Nerve

I had a two dental implants placed in the upper right side of jaw. Prior to final surgery; placement of abutments, I felt odd sensations and numbness on upper and lower lip. Also pain felt in second implant site and in a root canaled tooth near implant site. I am sure I have developed nerved damage, as a CT scan revealed the implant was placed in bone at an agle and penetrated aveolor ridge. Should I have the implant removed or will it make matters worse? I am in horrendous pain all day long. Thanks!


norma demarco says:

I had two 3 and 4 upper implants, after 4 months I went in for the abutment. Periodontist said I needed some bone, no abutment. For the last 4 months, I have had skull pain, (explosion, brain inflamation) tremors, palpitations, feeling of vomit. No fever, sleeplessness nights. I had all kinds of test, mri, nuclear bone, 14 x rays, ultra sounds, been to cardiologist, neurologist, ent, and infectious dr. I returned to my perio and he said he has no idea what it is. ct scan was done,(5 weeks ago) and I have yet to get the report ) I said I think it is a nerve. Dr. said oh no there is no nerve near there. I think he thinks I fell out of a tree. What kind of a dr. should I see for nerve damage? I want to have the implants out now, but I am so frightened that it may exacerbate my condition.


Kathy Kline says:

I had 3 implants on left lower side a week ago. I can actually see the metal implant on the front one and it hurts like the dickens. Has anyone had pain in the hip from nerve damage during dental implants? My hip is really killing me, too. It never hurt at all until the implants were put in.



more statements describing chronic pain and other complications

(..) I had 2 implants placed in the back of my mouth about 4 years ago. I have been noticing when I floss or touch the inside of my gums, it is very painful. I just noticed that the entire gum line, on the inside of teeth, is very black and gums appear swollen. The surgeon not only put them on top of a nerve so I have no feeling on half of my lip, gums and some teeth and chin permanently, but there is a huge space under one of them that food gets trapped and can not be cleaned with dental floss.


16th March 2014:

I had an implant fitted 3 years ago without any problems. I also had another fitted next to it two years ago. both have always been fine but very occasionally I get a mild pain in my jaw. Today i was brushing my teeth and felt a sharp pain in gum below the implant. (...)



Articles and more Papers:

8 June 2012 Last updated at 15:08 GMT

Dental implants can cause nerve damage, warns study

Dental implant procedures have risen in number in recent years

Dentists are not being vigilant when carrying out implant surgery and are failing to inform patients about the risks of nerve damage, a study in the British Dental Journal says.


Inferior alveolar nerve injury in implant dentistry: diagnosis, causes, prevention, and management.


Minimising and managing nerve injuries in dental surgical

Tara Renton

The most significant complications from dental surgical interventions are iatrogenic trigeminal nerve injuries, which can result in permanent altered sensation and pain, causing considerable functional and psychological disability. This paper provides some useful tips on minimising the risks of these injuries. By understanding the risk factors and modifying the resulting intervention, more of these injuries may be prevented.

Post-implant neuropathy of the trigeminal nerve. A case series.
Renton T1, Dawood AShah ASearson LYilmaz Z.


Persistent pain after dental surgery

Tara Renton, Mar 1, 2011

This article aims to cover post surgical trigeminal neuropathy and other conditions related to chronic

trigeminal pain not specifically covered elsewhere in this series.

• Is estimated to occur in 4-5% of patients overall, considerably less compared with other site surgeries.

• Due to the high volume surgery undertaken in this region chronic post surgical pain remains common.

• Relatively few clinicians are aware of this condition and as a result it is frequently poorly managed.


Trigeminal Nerve Injuries


Very helpful / Lecture of this should be mandatory for patients and dentists:

Trigeminal Foundation

About Trigeminal Nerve Injuries

"(...) Trigeminal nerve injury is the most problematic consequence of dental surgical procedures with major medico-legal implications and many complaints to the General Dental Council are related to dental implant treatment"


Legal / Lawyers / Legislation

Dental Nerve Injuries

(...) Dental nerve injuries can be an upsetting event for those unfortunate enough to experience it. And depending on the nerve injured and the degree of damage to the nerve, such injuries can be debilitating and permanent.


Zur Zeit werden Zahnimplantate von Zahnärzten und Implantatherstellern als Routine-Eingriff beworben. 

Grundsätzliche Anmerkungen:
Es gibt Hinweise, dass Komplikationen, wie chronische Schmerzen häufiger auftreten als erwünscht. Es kursieren einige Prozentzahlen, dass etwa 5% der Implantate zu Komplikationen führen. Das würde heissen, jeder zwanzigste Patient wäre von negativen Effekten betroffen. Es ist gut möglich, dass der Prozentsatz höher ist, zumal es bisher keine Hinweise auf eine systematische Erhebung von Zahlen gibt und viele Fälle vorzugsweise mit Inkompetenz, Fehldiagnosen und Hinhaltetaktiken behandelt werden.

Die Kommunikation mit implantierenden Zahnärzten, die diesen sogenannten Routine-Eingriff an Patienten ausführen, scheint durch das Auftreten von chronischen Schmerzen oder anderen Komplikationen auf Grenzen zu stossen.

In wie weit Schulung der implantierenden Zahnärzte durch börsenkotierte Implantat-Hersteller diese Kommunikation beeinträchtigt, ist bis jetzt noch unklar. Es scheint der Industrie klar zu sein, dass die Probleme nicht unerheblich sind. Es dominiert in der Kommunikation, aber auch in der Wahl von Massnahmen das Topos der Beschwichtigung.




1) April 16, 2013

Nobel Biocare To Pay Up To $1.3M To Settle Dental Implant Suit

(...) Nobel Biocare Holding AG reached a deal Monday in which it will pay up to $1.3 million to settle a $450 million lawsuit by dentists who accused it of misrepresenting a dental implant they said caused bone and gum problems. 
(...) Yamada had filed the complaint in July 2010 on behalf of thousands of fellow dentists, seeking indemnification for alleged defects in the NobelDirect product, which the company had introduced in January 2004.

Complications such as bone resorption and gingival retraction had allegedly forced the proposed class members to perform surgery on dissatisfied patients, leaving them to pick up the tab for the surgeries and related staff costs.

According to the plaintiffs, the NobelDirect implant is inherently defective.(...)