Osseointegrated Oral Implants

Abstract

Fourteen Swedish teams outside the University of Gothenburg, each with minimally three years' experience in the Nobelpharma osseointegrated implant participated in a retrospective multiclinic study. The total number of consecutively inserted implants at the 14 clinics was 8139. The outcome of every implant was reported and all implant failures, irrespective of when they occurred, were published. The success criteria included absence of implant mobility, absence of radiolucent zones on x-rays, and an annual bone loss after the first year of less than 0.2 mm. In the mandible 334 implants were followed for five to eight years, with only three failures, for a success rate of 99.1%. In the maxilla 106 implants were followed for five to seven years, with a success rate of 84.9%. In irradiated and grafted mandibles, 56 implants were inserted and none was lost during a follow-up of up to five years. In the irradiated maxilla there were 16 implants inserted with three reported failures and in the grafted upper jaw 71 implants were inserted with 12 failures. The proportions of mandibular and maxillary sleeping implants were 0.8 and 0.3%, of patient drop-out implants 0.3 and 0.6%, and of patient death implants 0.9 and 1.2%, respectively. It was concluded that the osseointegrated implant, if inserted according to the guidelines of Brånemark, results in a very high degree of clinical success, thereby meeting any published oral implant success criteria.

Fibroblast and osteoblast adhesion and morphology on calcium phosphate surfaces

“…They are especially important in the context of implants and are considered to be determining influences in their success or failure (Albrektsson et al, 1981).…”

“…Fibrous encapsulation is known to occur to implants made of steel, usually with the presence of a liquid filled void between the tissue and implant (Woodward and Salthouse, 1986) and is thought to be due to the cells not adhering adequately to the surface (Richards, 1996), resulting in a destabilisation of the implant, an inhibition of tissue regeneration and repair as well as increasing the chances of infection (Albrektsson et al, 1981;Gristina, 1987;Brunette and Chehroudi, 1999). This invariably leads to the rejection and failure of the implant.…”

Maxillary restoration with complete maxillary prosthesis supported by implants with immediate loading: clinical retrospective study of 48 cases

“…Implant success: according to the criteria by Albrektson [19], an implant was classified as successful if it was motionless, free of signs of discomfort, pain, infection, neuropathy, and paresthesia's, useful to prosthetic reconstruction, without radiolucency around the implant under X-ray, and with <2 mm peri-implant vertical bone loss in the first year, and with <2 mm peri-implant vertical bone loss.…”

Characterization and Evaluation of Surface Modified Titanium Alloy by Pulse Nd:YAG Laser for Orthopaedic Applications: an Invivo Study

“…It is well established that oseteointegration is an important property of titanium implant surfaces and that the current success rate is satisfactory [Feng et al, 2003;Puleo et al, 1989;Albrektsson et al, 1981]. Osseointegration is a term introduced by Beraceras et al, 1977 to describe a loaded, stable implant in direct contact with bone.…”