BACKGROUND: Pre-implant augmentative surgery is a prerequisite in many cases in the anterior maxilla to achieve a stable, long-term esthetic final result. PURPOSE: The aim of the present study was to evaluate the outcome of ridge augmentation with cancellous freeze-dried block bone allografts in the anterior atrophic maxilla followed by placement of dental implants. MATERIALS AND METHODS: Thirty-one consecutive patients were included in the study. A bony deficiency of at least 3 mm horizontally and up to 3 mm vertically according to computerized tomography (CT) served as inclusion criteria. Sixty-three implants were inserted after a healing period of 6 months. Nineteen of sixty-three implants were immediately restored. Bone measurements were taken prior to bone augmentation, during implant placement, and at second-stage surgery. RESULTS: Forty-six cancellous allogeneic bone blocks were used. The mean follow-up was 34 ± 16 months. Mean bone gain was 5 ± 0.5 mm horizontally, and 2 ± 0.5 mm vertically. Mean buccal bone resorption was 0.5 ± 0.5 mm at implant placement, and 0.2 ± 0.2 mm at second-stage surgery. Mean bone thickness buccal to the implant neck was 2.5 ± 0.5 mm at implant placement, and 2.3 ± 0.2 mm at second-stage surgery. There was no evidence of vertical bone loss between implant placement and second-stage surgery. Block and implant survival rates were 95.6 and 98%, respectively. All patients received a fixed implant-supported prosthesis. CONCLUSION: Cancellous block allografts appear to hold promise for grafting the anterior atrophic maxilla.
BACKGROUND: Pre-implant augmentative surgery is a prerequisite in many cases in the anterior maxilla to achieve a stable, long-term esthetic final result. PURPOSE: The aim of the present study was to evaluate the outcome of ridge augmentation with cancellous freeze-dried block bone allografts in the anterior atrophic maxilla followed by placement of dental implants. MATERIALS AND METHODS: Thirty-one consecutive patients were included in the study. A bony deficiency of at least 3 mm horizontally and up to 3 mm vertically according to computerized tomography (CT) served as inclusion criteria. Sixty-three implants were inserted after a healing period of 6 months. Nineteen of sixty-three implants were immediately restored. Bone measurements were taken prior to bone augmentation, during implant placement, and at second-stage surgery. RESULTS: Forty-six cancellous allogeneic bone blocks were used. The mean follow-up was 34 ± 16 months. Mean bone gain was 5 ± 0.5 mm horizontally, and 2 ± 0.5 mm vertically. Mean buccal bone resorption was 0.5 ± 0.5 mm at implant placement, and 0.2 ± 0.2 mm at second-stage surgery. Mean bone thickness buccal to the implant neck was 2.5 ± 0.5 mm at implant placement, and 2.3 ± 0.2 mm at second-stage surgery. There was no evidence of vertical bone loss between implant placement and second-stage surgery. Block and implant survival rates were 95.6 and 98%, respectively. All patients received a fixed implant-supported prosthesis. CONCLUSION: Cancellous block allografts appear to hold promise for grafting the anterior atrophic maxilla.
Authors: Marta Krasny; Kornel Krasny; Artur Kamiński; Małgorzata Zadurska; Piotr Piekarczyk; Piotr Fiedor Journal: Cell Tissue Bank Date: 2012-12-13 Impact factor: 1.522
Authors: F S De Ponte; G Cutroneo; R Falzea; G Rizzo; L Catalfamo; A Favaloro; G Vermiglio; M Runci; A Centofanti; G Anastasi Journal: Eur J Histochem Date: 2016-12-06 Impact factor: 3.188
Authors: Oliver Blume; Lisa Hoffmann; Phil Donkiewicz; Sabine Wenisch; Michael Back; Jörg Franke; Reinhard Schnettler; Mike Barbeck Journal: Materials (Basel) Date: 2017-10-21 Impact factor: 3.623
Authors: Alberto Monje; Michael A Pikos; Hsun-Liang Chan; Fernando Suarez; Jordi Gargallo-Albiol; Federico Hernández-Alfaro; Pablo Galindo-Moreno; Hom-Lay Wang Journal: Biomed Res Int Date: 2014-09-11 Impact factor: 3.411
Authors: André Antonio Pelegrine; Marcelo Lucchesi Teixeira; Marcelo Sperandio; Thiago Sousa Almada; Karl Erik Kahnberg; Paulo José Pasquali; Antonio Carlos Aloise Journal: Contemp Clin Dent Date: 2016 Jan-Mar