Comparison of 4 sinus augmentation techniques for implant placement with residual alveolar bone height <= 3 mm

Chia-Fang Tsai, Whei-Lin Pan, Yi-Ping Pan, Chiu-Po Chan, Yuh-Ren Ju, Yuan-Min Wang, Cho-Ying Lin, Chi-Ching Chang

Research output: Contribution to journalJournal Article peer-review

11 Scopus citations


This study compared implant outcomes following maxillary sinus floor augmentation (MSFA) in edentulous patients with a residual alveolar bone height <= 3 mm. Four techniques were evaluated: 1-stage bone-added osteotome sinus floor elevation procedure (BAOSFE) with simultaneous implant placement; 2-stage BAOSFE with delayed implant placement; 1-stage lateral window sinus floor elevation with simultaneous implant placement; and 2-stage lateral window sinus floor elevation with delayed implant placement. Patients were followed for 18 to 72 months (mean: 52.5 months) after prosthesis placement. Data were analyzed with cone-beam computed tomography. A total of 96 implants from 71 patients were analyzed; pretreatment, there were no significant differences between patients. Total implant survival was 98.9%. The mean residual bone height was significantly higher in the 1-stage BAOSFE group than the other groups (P < .01); 1 implant in this group failed at 3 months. There was no significant difference in total bone height gain between groups. However, the bone height gain of 1st sinus lifting with 2-stage BAOSFE was significantly lower than the 2-stage lateral window procedure (P < .01). There was no prosthesis failure. The favorable implant outcomes suggest these 1-stage and 2-stage MSFA procedures should be considered as alternative treatment options for patients with extremely atrophic posterior maxilla.
Original languageAmerican English
JournalMedicine (United States)
Issue number46
StatePublished - 2020


  • LIFT
  • atrophic maxilla
  • dental implants
  • lateral window sinus augmentation
  • transalveolar sinus augmentation


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