In addition to assessment of restricting
anatomical structures, the potential implant sites need to be assessed to rule out any disease that
may compromise and complicate the outcome of
the dental implant therapy. Commonly occurring
local diseases, such as chronic odontogenic
inflammatory lesions, may complicate healing of
the surgical site. Local changes in normal bone
architecture (as seen in fibro-osseous conditions like
periapical cemento-osseous dysplasia, enostosis, or
idiopathic osteosclerosis) and systemic conditions
(such as osteoporosis) should be taken into
consideration prior to implant placement. Thorough
clinical assessment as well as assessment of all
available radiographic images is necessary to rule
out pathology. In the event of surgical removal of a
pathologic lesion in a given implant site, care must
be taken to initiate the process of implant placement
after healing and remodeling of the surgical defect
to ensure the availability of sufficient healthy bone
for osseointegration with implants. Hard and/or soft
tissue grafts may be required prior to successful
implant placement in some of those cases.
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