•
Cutting, shaving, contouring and resection of oral osseous tissues
(bone - the porous calcified substance from which bones
are made)
• Osteotomy
Oral
implants for original entry and re-entry procedures have implant
portions that are positioned in grooves in the bone such that
they are submergible below the upper rim of the bone. A post
assembly for immediate installation of an artificial tooth structure
may be detachably corrected to the implant portion. Alternatively,
a cap may be attached and covered by tissue. Once the bone has
grown over the implant portion, except in the area of the cap,
the tissue is reopened and the cap is replaced by the post.
In narrow bone areas the implant portion is a blade with a snap-on
cap. In broad bone areas, the implant portion is box shaped
and has a screw on post. If desired, the artificial tooth structure
may be detachably connected to the post assembly for easy removal.
An
osteotomy is a precision surgical cut into bone. The word comes
from osteo meaning bone and -otomy meaning to cut. This procedure
is commonly used in Dentistry to prepare the jaw bone for placing
dental implants. Osteoplasty is performed to change the outside
shape of bone and does not enter inside the jaw.
A dental implant osteotomy forms a precision hole in the bone
that exactly matches the shape of the implant being inserted.
It is done using a slow speed dental hand piece with specially
designed bone cutting burs. Several burs are used with increasing
diameters so that the hole in gradually enlarged without burning
or damaging the surrounding jaw bone. Most dentists use cool
saline to irrigate the bone while carefully preparing the site.
The osteotomy should not cut into the roots of the adjacent
teeth and should stay in the bone. Without careful planning
and design, the preparation can go through the bottom of the
bone out into the soft tissue. This can cause constant aggravating
pain. In the maxillary posterior area, the preparation can go
into the maxillary sinus. In the maxillary anterior area, the
preparation can accidentally go into the base of the nose. Careful
planning is essential.
