Why shouldn’t we, as responsible
professionals make oral implantology less invasive and as simple as
possible? This will not only lower costs, it would
decrease clinical time for the doctor and recovery time for the patient. On top
of it, such procedures have been proven to be relatively pain free.
(6) One reason why mini- implants can be
loaded immediately as a matter of routine is because there is minimal trauma
to the bone. As such, the process of osseointegration begins immediately
on implantation. There is no transitional margin of necrosis between the
implant and bone which is found in conventional implant placement. Also,
because the mini- implant is small, the healing challenge to the surrounding
tissue is correspondingly small and the tissue heals rapidly and almost
immediately.
The healing challenge of the
surrounding tissue in the case of the conventional implants is much more and
requires a longer time, thus immediate loading of conventional implants often
is less successful.
(7) The actual surface area of minis are
actually comparable to the surface area of conventional size dental implants.
This is because minis are usually place deeper and therefore longer than
conventionals, thus increasing its effective surface area available for
osseointegration.
- A conventional sized dental implant 4mm diameter and 10mm long has a surface area of about 125 sq mm.
- A reduced diameter dental implant 2.5mm diameter and 10mm long has a surface of about 80sq mm.
- A reduced diameter dental implant 2.5mm diameter and 13mm long has a surface of about 100sq mm.
- A reduced diameter dental implant 2.5mm diameter and 16mm long has a surface of about 125 sq mm.
- A reduced diameter dental implant 2.5mm diameter and 19mm long has a surface of about150 sq mm.
Thus
a mini that is 2.5mm diameter and 16mm long in its threaded area has a
surface area equivalent to a conventional sized dental implant 4mm diameter and
10mm long.
In my experience, this length is one of the
most common mini used and very often 2 minis are used to restore one molar. Two
minis 2.5mm diameter and 10mm long has a surface area of 160 sq mm! This is
more than that of a conventional 4mm diameter and 10mm long. Two minis 10mm
long is more than adequate for one molar since very often one molar is restored
by a conventional that has a surface area of only 125 to 150sq mm.