BACKGROUND@#This study aims to examine the outcome of simultaneous
maxillary sinus lifting,
bone grafting, and vertical
ridge augmentation through
retrospective studies.@*
METHODS@#From 2005 to 2010,
patients with exhibited severe
alveolar bone loss received simultaneous sinus
lifting,
bone grafting, and vertical
ridge augmentations were selected. Fifteen
patients who visited in
Seoul National
University Bundang
Hospital were analyzed according to clinical
records and
radiography.
Postoperative complications; success and
survival rate of implants;
complications of
prosthesis; implant stability quotient (ISQ); vertical resorption of grafted
bone after 1, 2, and 3Â years after
surgery; and final
observation and marginal
bone loss were evaluated.@*RESULTS@#The average age of the
patients was 54.2Â years. Among the 33 implants, six failed to survive and succeed, resulting in an 81.8%
survival rate and an 81.8% success rate.
Postoperative complications were characterized by eight cases of
ecchymosis, four cases of exposure of the
titanium mesh or
membrane, three cases of
peri-implantitis, three cases of
hematoma, two cases of
sinusitis, two cases of fixture fracture, one case of
bleeding, one case of
numbness, one case of
trismus, and one case of fixture loss. Prosthetic
complications involved two instances of screw loosening, one case of abutment fracture, and one case of
food impaction. Resorption of grafted
bone material was 0.23Â mm after 1Â year, 0.47Â mm after 2Â years, 0.41Â mm after 3Â years, and 0.37Â mm at the final
observation. Loss of marginal
bone was 0.12Â mm after 1Â year, and 0.20Â mm at final
observation.@*CONCLUSIONS@#When sinus
lifting,
bone grafting, and vertical
ridge augmentation were performed simultaneously,
postoperative complications increased, and
survival rates were lower. For positive long-term
prognosis, it is recommended that a sufficient recovery period be needed before implant placement to ensure good
bone formation, and implant placement be delayed.