OBJECTIVES: To present the clinical, radiographic, and patient-related outcomes of patients presenting with severely resorbed ridges reconstructed with autogenous calvarial bone blocks and rehabilitated with implant-supported prostheses. MATERIAL AND METHODS: From 1998 to 2014, 72 patients presenting with severe bone defects were reconstructed with autogenous calvarial bone blocks covered with bovine bone mineral granules and collagen membranes. Four to 9 months later, 330 implants were placed and loaded 3-9 months later. The follow-up ranged from 3 to 19 years (mean: 8.1 years). The following parameters were recorded: (a) complication rate of the reconstructive procedure; (b) bone resorption before implant placement; (c) implant survival rate and implant-related complications; (d) peri-implant bone resorption; and (e) patient's satisfaction inquired with a dedicated questionnaire. RESULTS: No patients developed severe complications, such as complete loss or resorption of the grafts. A dehiscence occurred in six patients, which developed a mild graft resorption. The mean peri-implant bone resorption before implant placement was 0.13 mm (SD ± 0.71). All patients received the planned number of implants. Three patients were lost during the follow-up. The survival rate of implants at the end of the observation period was 98.5%. The mean peri-implant bone resorption ranged from 0.00 to 4.87 mm (mean: 1.11 mm). At last, 90% of the patients were very satisfied as regards the treatment received. CONCLUSIONS: Results from this study suggested that: (a) bone volume in the areas reconstructed with calvarial grafts was stable over time; (b) survival rates of implants were consistent with those reported for implants placed in native bone; (c) patient's satisfaction was high.
Dental implants placed in severely atrophic jaws reconstructed with autogenous calvarium, bovine bone mineral and collagen membranes : a 3 to 19 year retrospective follow-up study / M. Chiapasco, G. Tommasato, D. Palombo, D. Scarnò, M. Zaniboni, M. del Fabbro. - In: CLINICAL ORAL IMPLANTS RESEARCH. - ISSN 0905-7161. - 29:7(2018 Jul), pp. 725-740.
|Titolo:||Dental implants placed in severely atrophic jaws reconstructed with autogenous calvarium, bovine bone mineral and collagen membranes : a 3 to 19 year retrospective follow-up study|
CHIAPASCO, MATTEO FRANCESCO (Primo) (Corresponding)
TOMMASATO, GRAZIA (Secondo)
DEL FABBRO, MASSIMO (Ultimo)
|Parole Chiave:||autogenous bone; bone atrophy; bone reconstruction; calvarium; complication; dental implant; patient satisfaction|
|Settore Scientifico Disciplinare:||Settore MED/28 - Malattie Odontostomatologiche|
|Data di pubblicazione:||lug-2018|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1111/clr.13281|
|Appare nelle tipologie:||01 - Articolo su periodico|