Rabah Nedir1, Nathalie Nurdin1, Lydia Vazquez2, Semaan Abi Najm3,4, Mark Bischof5. 1. Swiss Dental Clinics Group, Ardentis Clinique Dentaire, Vevey, Switzerland. 2. Department of Orofacial Rehabilitation, Oral and Maxillofacial Radiology, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 3. Swiss Dental Clinics Group, Ardentis Clinique Dentaire, Geneva, Switzerland. 4. Department of Oral and Maxillofacial Surgery, Oral Surgery and Implantology Unit, Geneva University Hospitals, Geneva, Switzerland. 5. Swiss Dental Clinics Group, Ardentis Clinique Dentaire, Lausanne, Switzerland.
Abstract
BACKGROUND: Little is known about the long-term outcome of implants placed in the atrophic maxilla using osteotome sinus floor elevation (OSFE) without grafting. PURPOSE: The study aims to evaluate the long-term efficiency of the procedure and stability of the peri-implant bone formed following implant placement without grafting into resorbed posterior maxilla. MATERIALS AND METHODS: Twenty-five implants (≤10 mm in length) were placed in 17 patients using OSFE without grafting. The mean residual bone height was 5.4 ± 2.3 mm. Bone levels were evaluated at 1, 3, 5, and 10 years using periapical radiographs. RESULTS: Fifteen patients (23 implants) participated in the 10-year examination. All implants fulfilled the survival criteria. Following surgery, the implant sites gained endo-sinus bone (mean: 3.0 ± 1.4 mm). The mean crestal bone loss (CBL) was limited to 1.0 ± 0.9 mm. The difference in mean endo-sinus bone gain and CBL was statistically significant between 1 and 10 years, but not between 3 and 5, 3 and 10, and 5 and 10 years. CONCLUSIONS: At 10 years, the implant survival rate was 100%. Endo-sinus bone was mainly gained during the first year. This study demonstrates the long-term predictability of OSFE without grafting and simultaneous implant placement.
BACKGROUND: Little is known about the long-term outcome of implants placed in the atrophic maxilla using osteotome sinus floor elevation (OSFE) without grafting. PURPOSE: The study aims to evaluate the long-term efficiency of the procedure and stability of the peri-implant bone formed following implant placement without grafting into resorbed posterior maxilla. MATERIALS AND METHODS: Twenty-five implants (≤10 mm in length) were placed in 17 patients using OSFE without grafting. The mean residual bone height was 5.4 ± 2.3 mm. Bone levels were evaluated at 1, 3, 5, and 10 years using periapical radiographs. RESULTS: Fifteen patients (23 implants) participated in the 10-year examination. All implants fulfilled the survival criteria. Following surgery, the implant sites gained endo-sinus bone (mean: 3.0 ± 1.4 mm). The mean crestal bone loss (CBL) was limited to 1.0 ± 0.9 mm. The difference in mean endo-sinus bone gain and CBL was statistically significant between 1 and 10 years, but not between 3 and 5, 3 and 10, and 5 and 10 years. CONCLUSIONS: At 10 years, the implant survival rate was 100%. Endo-sinus bone was mainly gained during the first year. This study demonstrates the long-term predictability of OSFE without grafting and simultaneous implant placement.
Authors: Adrián Maximiano Millán; Rocío Bravo Álvarez; Miguel Plana Montori; María Guerrero González; David Saura García-Martín; Blanca Ríos-Carrasco; Francesca Monticelli; José Vicente Ríos-Santos; Ana Fernández-Palacín Journal: Int J Environ Res Public Health Date: 2020-03-14 Impact factor: 3.390
Authors: Luigi V Stefanelli; Nicola Pranno; Francesca De Angelis; Silvia La Rosa; Antonella Polimeni; Stefano Di Carlo Journal: BMC Oral Health Date: 2020-10-07 Impact factor: 2.757
Authors: Giovanni Battista Menchini-Fabris; Paolo Toti; Giovanni Crespi; Ugo Covani; Roberto Crespi Journal: Int J Environ Res Public Health Date: 2020-10-01 Impact factor: 3.390