title: Clinical Outcomes of Reamer- vs Osteotome-Mediated Sinus Floor Elevation with Simultaneous Implant Placement: A 2-Year Retrospective Study.
abstract: OBJECTIVE
  This retrospective study evaluated and compared the 2-year outcomes for sinus floor elevation performed via either an osteotome-mediated sinus floor elevation (OSFE) technique or a reamer-mediated sinus floor elevation (RSFE) technique. Implant survival, as well as surgical and postoperative complications, were used as measures of comparison.
  
  
  METHODS
  Patients were analyzed according to defined inclusion criteria. Orthopantography was used to assess preoperative; immediate postoperative; and 6-, 12-, and 24-month postoperative bone level changes. Implant survival and the incidence of complications, including sinus membrane perforation, were evaluated using appropriate statistical tests.
  
  
  RESULTS
  From 2008 to 2010, 126 implants were placed simultaneously with sinus floor elevation in 85 patients (n = 43 women and 42 men; mean age ± standard deviation [SD] = 58.1 ± 10.2 years). The OSFE procedure (control) was used to place 65 implants in 45 patients, and the RSFE procedure (experimental) was used to place 61 implants in 40 patients. The mean maxillary residual bone height was 7.1 ± 1.6 mm. Endosinus bone gains were 5.7 ± 1.5 mm and 5.6 ± 2.3 mm for the experimental and control groups (P = .164), respectively, and the 2-year survival rates were 98.4% and 98.5%, respectively. Although no significant differences were observed between the two groups, three (6.7%) membrane perforations occurred in the OSFE group, and none occurred in the RSFE group. Other postoperative complications, including nasal bleeding, postoperative headache, and dizziness, were documented in 7 (15.6%) of 45 OSFE cases and 3 (7.5%) of 40 RSFE cases.
  
  
  CONCLUSIONS
  The results presented herein indicate that comparable survival rates were achieved for implants placed in conjunction with a reamer- vs osteotome-mediated technique. Therefore, RSFE is a reliable and predictable procedure for implant placement in the posterior maxilla, with a low incidence of complications.
authors.forename: On-Yu
authors.initials: OY
authors.lastname: Bae
authors.forename: Young-Sung
authors.initials: YS
authors.lastname: Kim
authors.forename: Seung-Yun
authors.initials: SY
authors.lastname: Shin
authors.forename: Won-Kyung
authors.initials: WK
authors.lastname: Kim
authors.forename: Young-Kyoo
authors.initials: YK
authors.lastname: Lee
authors.forename: Su-Hwan
authors.initials: SH
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D018786:Bone Substitutes / Q000627:therapeutic use; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D004244:Dizziness / Q000209:etiology; D004844:Epistaxis / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006261:Headache / Q000209:etiology; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008437:Maxilla / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D008903:Minerals / Q000627:therapeutic use; D009297:Nasal Mucosa / Q000293:injuries; D010027:Osteotomy / Q000295:instrumentation* / Q000379:methods; D011183:Postoperative Complications; D011862:Radiography, Panoramic / Q000379:methods; D012189:Retrospective Studies; D059546:Sinus Floor Augmentation / Q000295:instrumentation* / Q000379:methods; D016019:Survival Analysis; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: C077540:Bio-Oss; D018786:Bone Substitutes; D015921:Dental Implants; D008903:Minerals