Osteotome sinus floor elevation with or without grafting: a 3‐year randomized controlled clinical trial

Abstract

To evaluate the clinical and radiographic results of dental implant placed using osteotome sinus floor elevation (OSFE) with and without simultaneous grafting. Forty-five patients were randomly assigned into two groups: Group1: OSFE with deproteinized bovine bone mineral (DBBM) mixed with autogenous bone chips, and Group2: OSFE without grafting. The endo-sinus bone gain (ESBG) was assessed on radiographs at 6, 12, 24, 36months following surgery as primary outcome measurement. Implant survivals and marginal bone loss (MBL) were assessed as secondary outcome measurements. Twenty-one implants in Group1 and 20 implants in Group2 were analysed. The residual bone height (RBH) was 4.63±1.31mm in average (4.67±1.18mm for Group1 and 4.58±1.47mm for Group2). The 3-year cumulative survival rates of implants were 95.2% for Group1 and 95.0% for Group2. The ESBG in Group1 reduced from 5.66±0.99mm at 6months to 3.17±1.95mm at 36months, whereas the ESBG in Group2 increased from 2.06±1.01mm at 6months to 3.07±1.68mm at 36months. The MBL after 3years was 1.33±0.46mm in Group1 and 1.38±0.23mm in Group2. OSFE and simultaneous implant installation with and without grafting both resulted in predictable results. The application of grafting materials has no significant advantage in terms of clinical success.