Purpose: To evaluate a new method to treat the posterior atrophic edentulous maxilla: dental implants placed in the ulna and transplanted with their surrounding bone blocks as inlays into the sinus. Conventional sinus augmentation with particulated autogenous bone grafts served as a control procedure. Materials and Methods: Fifty-two implants were placed in the ulnas of 20 patients. After 6 weeks, bone blocks containing 1 to 3 implants were harvested and transplanted into the sinuses protruding 3 to 4 mm. Implants were left to heal for 6 weeks. Twenty patients with similar treatment indications treated with particulated bone grafts from the mental symphysis, tibia, or iliac crest acted as controls. Grafts were allowed to heal for 6 months in the control group. Fifty-two control-group implants were allowed to heal for 4 months. The main outcome measures were prosthetic and implant success. Stability of individual implants was assessed with Osstell and Periotest at baseline and after 6 and 12 months of loading. Independent sample chi-square tests, t tests, and paired t tests were used with a significance level of .05. Results: No patient dropped out or withdrew; no prosthesis or implant failed. No major surgical complications were occurred. There were no differences between the 2 groups at any time point in implant stability. Both modalities resulted in a significant increase of implant stability at 6 and 12 months. The mean change ( SD) from baseline to 1 year in Periotest measurements was 1.44 (0.48) in the test and 1.29 (0.58) in the control ( paired t tests; P <.001). For the Osstell, these values were - 5.88 (4.18) and - 5.48 (3.93) for the test and control groups, respectively ( paired t tests: P <.001). Conclusions: Ulna implant block grafting represents an alternative to conventional sinus augmentation, particularly when vertical augmentation is desirable or large iliac crest grafts are needed.

Augmentation of the posterior atrophic edentulous maxilla with implants placed in the ulna: a prospective single-blind controlled clinical trial / Cannizzaro, G; Leone, M; Consolo, Ugo; Ferri, V; Licitra, G; Worthington, H; Esposito, M.. - In: THE INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS. - ISSN 0882-2786. - STAMPA. - 22:2(2007), pp. 280-288.

Augmentation of the posterior atrophic edentulous maxilla with implants placed in the ulna: a prospective single-blind controlled clinical trial

CONSOLO, Ugo;
2007

Abstract

Purpose: To evaluate a new method to treat the posterior atrophic edentulous maxilla: dental implants placed in the ulna and transplanted with their surrounding bone blocks as inlays into the sinus. Conventional sinus augmentation with particulated autogenous bone grafts served as a control procedure. Materials and Methods: Fifty-two implants were placed in the ulnas of 20 patients. After 6 weeks, bone blocks containing 1 to 3 implants were harvested and transplanted into the sinuses protruding 3 to 4 mm. Implants were left to heal for 6 weeks. Twenty patients with similar treatment indications treated with particulated bone grafts from the mental symphysis, tibia, or iliac crest acted as controls. Grafts were allowed to heal for 6 months in the control group. Fifty-two control-group implants were allowed to heal for 4 months. The main outcome measures were prosthetic and implant success. Stability of individual implants was assessed with Osstell and Periotest at baseline and after 6 and 12 months of loading. Independent sample chi-square tests, t tests, and paired t tests were used with a significance level of .05. Results: No patient dropped out or withdrew; no prosthesis or implant failed. No major surgical complications were occurred. There were no differences between the 2 groups at any time point in implant stability. Both modalities resulted in a significant increase of implant stability at 6 and 12 months. The mean change ( SD) from baseline to 1 year in Periotest measurements was 1.44 (0.48) in the test and 1.29 (0.58) in the control ( paired t tests; P <.001). For the Osstell, these values were - 5.88 (4.18) and - 5.48 (3.93) for the test and control groups, respectively ( paired t tests: P <.001). Conclusions: Ulna implant block grafting represents an alternative to conventional sinus augmentation, particularly when vertical augmentation is desirable or large iliac crest grafts are needed.
2007
22
2
280
288
Augmentation of the posterior atrophic edentulous maxilla with implants placed in the ulna: a prospective single-blind controlled clinical trial / Cannizzaro, G; Leone, M; Consolo, Ugo; Ferri, V; Licitra, G; Worthington, H; Esposito, M.. - In: THE INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS. - ISSN 0882-2786. - STAMPA. - 22:2(2007), pp. 280-288.
Cannizzaro, G; Leone, M; Consolo, Ugo; Ferri, V; Licitra, G; Worthington, H; Esposito, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/612363
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