THE BONE LOSS OF ONE MAXILLARY ALLOGENIC GRAFT ASSESSED BY
CONE BEAM COMPUTED TOMOGRAPHY
Introduction: The allogenic bone grafts, which are performed with bones from
other individuals of the same species, have been used in rehabilitation of
atrophic jaws for placement of dental implants. Some literature reports have
associated bone loss, in variable rates, to cases of bone graft with allogenic
bone. Objective: The aim of this case report is to demonstrate in cone beam
computed tomography (CBCT) images, the rate of bone resorption occurred in
one clinical case where a graft with fresh frozen human bone from the Bank of
Musculoskeletal Tissues Hospital of Marilia – UNIOSS was used. Case Report:
For that, the CBCT image for planning (prior to the graft) was compared with a
second scan performed for diagnosis of bone gain (before placing the titanium
implants), and finally, there was a subjective visual comparison in a third
tomographic image, 02 years after the implant insertion. The first scan showed
a thickness of 4.3mm in the region of the right central incisor and the graft was
performed in september of 2011. Six months later, a second Cone Beam
Computed Tomography image showed a 6.05mm bone thickness in that área,
with the graft fixation screws. The implants were placed in march of 2012. Two
years after implant insertion, a third image showed a total loss of the buccal
bone graft. Clinically, there are no signs of implant mobility, but a decrease in
bone volume and a consequent upper lip bulging can be noted. Conclusion: In
cases where frozen human bone graft is used, they should be followed up by
cone beam computed tomography images to assess the rate of the grafted
bone loss and the consequences that this can induce.