happens when the bone is missing ?
Replacing missing teeth with new roots made of
titanium is a therapy that is finding growing approval
among patients and dentists. But what if the necessary
bone for grafting the implant is missing? At one time the
phrase “there is not enough bone” was enough to make
us feel inevitably condemned to wearing dentures. Today
the means for restoring missing bone are many. At the
most delicate and extraordinary interventions are needed,
which are able to be carried out only by expert and
careful hands. With just a warning: only a capable and
trustworthy dentist will be able to assist us in choosing
the most suitable therapy as well as the most appropriate
minor deficiencies, it is possible to increase the jaw
bone thickness, by the grafting of the patient's bone
fragments which are then anchored to the implant and to
any remaining bone (particulate bone grafting). A
small intervention that can either precede the implant
insertion or be carried out simultaneously.
After a few months, the grafted bone and that
already present fuse together and become strong,
healthy and able to withstand the mastication forces.
Not only. It is possible to install bone free implants,
but also fill in non-aesthetic dips or regain the presence
of an aesthetic and pleasant smile. In the most difficult
cases and with even less residual bone, it is possible to
screw in a small bone screw from material always taken
from the patient's mouth. The screw with fuse with the
pre-existant bone (on-lay bone grafting).
In both cases, there is often the use of an
extraordinary artifice researched and applied around the
world. In the blood, as is well known, there is the
presence of various substances (proteins) that stimulate
wound healing. In our case, there is a faster and more
efficient recovery by drawing these substances from the
patient's blood before the intervention, concentrating
them and subsequently applying them on the wounds and
grafts (platelet-rich plasma).
surgeons prefer using the erbium laser which
stimulates wound healing and sterilizes the operated area
in which blood flow increases. In cases even more
difficult there is the application of a technique invented
by a Russian doctor noted as: mandibular symphyseal
distraction osteogenesis. It consists in separating a
fragment of mandibular bone from the surrounding bone by
means of a small saw: a small screw then ensures that it
is gradually distanced. There will be a resulting
formation of a bone callus during healing within the small
bone cavity formed between the jaw bone and the fragment.
However, this is stretched and flattened by the fragment's
gradual movement. Hence, there is the formation of new
and abundant bone tissue on which the new titanium
roots can be placed.
alternative other equally efficient interventions are
available, which however require a short hospital recovery.
As a matter of fact, a large bone screw can be drawn from
the leg and screwed into the mouth as to obtain all
necessary tissue. Naturally, every surgical intervention,
from the smallest to the most important, requires a
careful and attentive patient exam. The surgical
indications, the counter-indications, and the possible
complications must be carefully assessed, explained and
last update: 21 January 2008