A retrospective study on 1592 consecutively performed operations in one private referral clinic. Part I: Early inflammation and early implant failures.
2017
Background
Few large-scale follow-up studies are reported on routine implant treatment.
Purpose
To report retrospective data on early inflammatory and early implant failures in a large number of routine patients at one private referral clinic.
Materials and Methods
A total of 1017 patients were consecutively provided with 3082 implants with an anodized surface (Nobel Biocare AB) at 1592 implant operations between 2000 and 2011. All patients reported with mucosa inflammation and bone loss and/or implant failures to the first annual examination were identified. A logistic multivariate data analysis was performed to identify possible factors with an association to the two events.
Results
Altogether 33 patients/operations presented early inflammation (2.1% operations). “History of periodontitis” (OR 3.91; 95% CI: 1.86-8.21), “numbers of implants” (OR1.33; 95% CI:1.07-1.67 per implant), “two stage surgical technique” (OR 3.70; 95% CI: 1.75-7.85), and “lower jaw” treatment (OR 4.73; 95% CI: 2.12-10.57) increased the risk for early mucositis with bone loss (P 2011; OR 1.22; 95% CI;1.08-1.39).
Conclusion
History of periodontitis and two-stage surgery protocols with bone grafts in the (posterior) lower jaw increased the risk for early inflammatory problems after surgery (P < .05), with the highest risk for mid-aged patients (P < .05). Preventable factors related to the patient (smoking) and experience of surgeon showed to have a significant association to early implant failures in routine clinical practice (P < .05).
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