1. Twelve-Year Retrospective Follow-Up of Machined Implants in the Posterior Maxilla: Radiographic and Peri-Implant Outcome
- Author
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Giovanni Battista Grossi, Filippo Fontana, Massimo Simion, Luca Gionso, and F. Briguglio
- Subjects
Peri-implantitis ,Sinus Floor Augmentation ,medicine.medical_specialty ,business.industry ,Radiography ,Bleeding on probing ,Dentistry ,Retrospective cohort study ,Surgery ,Maxilla ,medicine ,Implant ,Oral Surgery ,medicine.symptom ,business ,General Dentistry ,Survival rate - Abstract
Purpose To retrospectively evaluate the survival rate of machined implants in sinus-lifted posterior maxilla after 12 years, with special reference to radiographic outcome and peri-implantitis. Materials and Methods From 37 possible candidates, 29 patients with 59 implants were evaluated. Implants were placed in the posterior maxilla in combination with a sinus elevation procedure (27 patients) or 6 months after sinus elevation (2 patients). Marginal bone level changes were radiographically evaluated at baseline and 1, 7, and 12 years post-loading. Probing depth was measured; presence/absence of plaque and bleeding on probing were recorded. Results Four out of 59 implants failed in 4 out of 29 patients (cumulative survival rate = 93.2%). The mean bone loss was 0.78 mm (± 0.88) after 12 years. Changes in the mean bone level were statistically significant between baseline and all the other follow-up intervals (p
- Published
- 2014
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