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Open AccessArticle

Effectiveness of Ball Attachment Systems in Implant Retained- and Supported-Overdentures: A Three- to Five-Year Retrospective Examination

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Private Practice, 40123 Bologna, Italy
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Private Practice, 45014 Porto Viro, Italy
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Private Practice, 20831 Seregno MB, Italy
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Department of Dentistry, Fra G.B. Orsenigo-Ospedale San Pietro F.B.F., 00100 Rome, Italy
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Department of Clinical Science and Translational Medicine, University of Rome, Tor Vergata, 00100 Rome, Italy
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Department of Implantology and Prosthetic Aspects, Aldent University, 1001 Tirana, Albania
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Private Practice, 1001 Tirana, Albania
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Private Practice, 00151 Rome, Italy
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Author to whom correspondence should be addressed.
Dent. J. 2019, 7(3), 84; https://doi.org/10.3390/dj7030084
Received: 19 June 2019 / Revised: 31 July 2019 / Accepted: 14 August 2019 / Published: 1 September 2019
Purpose: To evaluate implant and prosthetic survival rates, complications, patient satisfaction, and biological outcomes of patients rehabilitated with a ball attachment system for implant retained- and supported-overdentures (IOV), which was in function for 3 to 5 years. Methods: This retrospective study evaluated data collected from patients treated between April 2001 and May 2018 with IOV on splinted and non-splinted implants and a ball attachment system. Patients were followed for 36 to 206 months (mean follow-up was 128.1 ± 51.9 months). Data were collected at the 3- and 5-year follow-up examination. Outcome measures were implant and prosthetic survival rates, technical complications, marginal bone loss (MBL), oral health impact profile (OHIP), and periodontal parameters (bleeding on probing and plaque index). Results: A total of 46 patients (16 males and 30 females) with 124 implants were included in this study. Twenty-five implant-retained overdentures were delivered on 53 unsplinted implants, while the other 21 patients received an implant-supported overdentures and the implants were splinted. At the five-year follow-up examination, one implant and one prosthesis failed in the unsplinted group, resulting in a cumulative survival rate of 97.8% at the patient level. Two minor technical complications were experienced. Conclusions: Implant overdenture retained or supported by ball attachment systems showed high implant and prosthetic survival and success rates. A low number of complications, high patient satisfaction, and successful biological parameters were experienced in the mid-term follow-up. Data need to be confirmed by further randomized trials. View Full-Text
Keywords: implant overdenture; metal bar; ball attachments; dental implants implant overdenture; metal bar; ball attachments; dental implants
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Ortensi, L.; Martinolli, M.; Borromeo, C.; Ceruso, F.M.; Gargari, M.; Xhanari, E.; Tallarico, M. Effectiveness of Ball Attachment Systems in Implant Retained- and Supported-Overdentures: A Three- to Five-Year Retrospective Examination. Dent. J. 2019, 7, 84.

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