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South African Dental Journal

versão On-line ISSN 0375-1562
versão impressa ISSN 0011-8516

Resumo

VAFAEI, N  e  FERRETTI, C. A single centre retrospective review of 25 patients treated for full arch edentulism with the All-on-4® concept. S. Afr. dent. j. [online]. 2019, vol.74, n.6, pp.287-292. ISSN 0375-1562.  http://dx.doi.org/10.17159/2519-0105/2019/v74no6a1.

PURPOSE: To establish the outcomes and their reproducibility for the All-on-4® treatment protocol for full arch edentulism. MATERIALS AND METHODS: A retrospective observational cohort study of patients treated at a surgical private practice. Primary outcomes were three year cumulative implant and prosthesis survival. Secondary outcomes were surgical or prosthetic complications not resulting in implant or prosthesis loss. Marginal bone loss, measured on standardized panoramic radiographs was recorded if the loss exceeded Albrektsson's standards (less than 1 mm in the first year and maximum of 0.2 mm per year thereafter). RESULTS: Twenty-five patients (15 women, 10 men) were reviewed, with 124 implants supporting 31 full-arch fixed prostheses. Twenty had greater than three year follow-ups (range 40.7-139.7 months, mean 96.9 months), comprising 96 implants, and 26 jaws. Three implants failed in two patients, (survival rate 97.9%). One prosthesis failed (96.2% survival rate). Two patients required prosthesis replacement due to implant loss. One abutment screw fractured, which required replacement. A total of seven implants, in four different patients, had marginal bone loss in excess of the Albrektsson norm. CONCLUSION: This study found that the reliability and predictability of the All-on-4® concept is verifiable for the treatment of total edentulism.

Palavras-chave : All-on-4®; implant rehabilitation; long-term survival.

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