Biomedical Engineering Reference
In-Depth Information
Figure 1.4
3.5 mm diameter Timplant
(above) and 2.4 mm diameter Nanoimplant
(below).
of the oxide i lm, electrical charge state - on osseoinduction, osseoconduc-
tion, and osseointegration requires more detailed investigation.
One objective of the ef ort in [182] was to design, fabricate and implant
nanostructured CP Grade 4 titanium dental posts to clinically demonstrate
the benei ts associated with nanostructuring outlined previously. Toward
this end, a reduced diameter implant post Nanoimplant was designed and
fabricated. h is implant sustains the same load as a conventional 3.5 mm-
diameter titanium implant, the former having the added capability of being
used as a pillar in cases of insui cient thickness of the alveolar bone. h e
certii ed system of Timplant manufactured to standard EN ISO 13485:2003
was used during development of the Nanoimplant implant. h e implants
are shown in Figure 1.4, the nanoimplant intraosseal diameter 2.4 mm, hav-
ing a strength equivalent to the conventional of 3.5 mm diameter implant.
To date over 250 Nanoimplants have been implanted, most of them as
immediate load implants, with all results indicating the excellent primary
stability of Nanoimplants when compared to other implant types [http://
www.timplant.cz/e_stomatolog.asp]. For example, a 55-year-old male
with edentulous mandible and maxilla was treated by insertion of conical
implants laterally and Nanoimplants in the narrow anterior part. Primary
retention of all implants was very good; on the day of surgery the patient
received a complete provisional bridge. Post-operation healing at the sur-
gery site occurred without complications, with subsequent attachment of a
dei nitive metalloceramic bridge completing the treatment.
h e clinical tests, performed jointly with the R&D Institute of tooth
transplantation “Vitadent”, Ufa, coni rm also advantages of implantation
of nanotitanium over conventional titanium. h e dynamic densitometric
investigations showed that in 3 months at er implantation of nanotitanium
the new generated bone tissue has the radiological density of 6.8 units,
which exceeds bone density before implantation (4.7 units). For conven-
tionally used implants this result, as a rule, is achieved only in 6 months
