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Fifty-nine dental implants were placed in the lower back jaw of 40 volunteers.  These implants were followed for 12 months after implant loading.  All implants placed in the study were asymptomatic and fully integrated without complications at the 12-month follow-up.  The use of dental implants was found to be a good, reasonable, predictable and well tolerated treatment.

(The Success of endosseous implants in HIV positive patients receiving antiretroviral therapy.

Oliveira, et al JADA142(7) Sept 2011)

Smoking increases the risk of implant infection, but is not a strict contraindication.  A smoker also generally has more loss of bone and risk of infection around their natural teeth.  (Kerduongbundit and Wikesjo J. Periodontol. March 2000)

Age may prevent placing implants in young people before they complete physiologic growth.  This would be about sixteen for girls and  seventeen or eighteen for boys.  (Renouard, Rungert. Risk Factors in Implant Dentistry)

The scientific basis upon which modern implant dentistry rests is the result of research by Professor P. I. Branemark and co-workers which  began in 1952 in Sweden.  Dr. Branemark was an orthopedic surgeon who began animal studies to investigate what type of metal should be used to make bone screws to stabilize bone fractures.  These studies produced thirty-five Ph.D. theses on various aspects of wound healing.  Bone was found to have a great affinity for titanium.

In 1966, Dr. Branemark began to place titanium screws in humans.  He and co-workers reported a ten year follow-up on these cases in the Scandinavian Journal of Plastic and Reconstructive Surgery (Branemark P.I. :Osseointegration and its experimental background.  J. Prosthet Dent. 1983; 50: 399-410.)

See more about Dr. Branemark and the history of Dental Implant development at Nobel Biocare (click here).

“Research has shown that there is a ten percent prevalence of bisphosphonate  induced osteonecrosis (in the jaw bones) in patients without cancer and receiving medications like Fosamax, Actonel, and Boneva. For cancer patients receiving drugs like Zometa or Aredia (IV and higher doses) the only studies with documented follow-up showed a prevalence of 13.3 percent.   

(Prevalence of bisphosphonate related osteonecrosis in patients with cancer could be as high as 13.3 percent. Comesh Nalliah BDS. JADA 143(2) Feb. 2012)

The past ten years has brought many improvements in the implant shapes, surfaces, and in techniques to graft bone and soft tissue to sites that need implants.  

Physical Factors of Dental Implants

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