Abstract
ObjectivesThis retrospective study examined the mid- to long-term clinical and radiographic performance of a tapered implant in various treatment protocols in patients with local and systemic risk factors (RFs).Material and methodsTwo hundred seven NobelActive implants were inserted in 98 patients in the period from 10/2008 to 02/2015. The subdivision of the cohort was defined by local (n = 40), systemic (n = 6), local and systemic (n = 8), or without any RFs (n = 44) to analyze implant survival and marginal bone levels.ResultsFifteen implants failed within the follow-up period. The mean follow-up period of the remaining implants was 34 months (range 12 to 77 months). The cumulative survival rate according to Kaplan-Meier was 91.5%. The survival rate for 93 implants in 45 patients with no RFs was 94.8% whereas it was 94% for 83 implants in 48 patients with local RFs (p = 0.618), 81.3% for 14 implants in 6 patients with systemic RFs (p = 0.173), and 76.5% for 17 implants in 6 patients with local and systemic risk factors (p = 0.006). The interproximal marginal bone level was − 0.49 ± 0.83 mm at the mesial aspect and − 0.51 ± 0.82 mm at the distal aspect in relation to implant shoulder level and showed no relevant difference in the various risk factor groups.ConclusionsIt can be assumed that the negative effects of the local or/and systemic risk factors were partially compensated by the primary stability and grade of osseointegration of the NobelActive implant.Clinical relevanceThe use of this system in patients with risk factors and immediate loading procedures.
Highlights
IntroductionBased on published demographic data, the median age of the world population constantly increases [1]
Based on published demographic data, the median age of the world population constantly increases [1]. This has led to an increase in the number of dental implants inserted in senior individuals with local and systemic risk factors [2]
The survival rate for 93 implants in 45 patients with no RFs was 94.8% whereas it was 94% for 83 implants in 48 patients with only local RFs, 81.3% for 14 implants in 6 patients with only systemic RFs (p = 0,173), and 76.5% for 17 implants in 6 patients with both local and systemic risk factors (p = 0.006) (Fig. 2)
Summary
Based on published demographic data, the median age of the world population constantly increases [1]. Despite numerous studies having been conducted on this topic, the results remain controversial, almost 50 years after the first dental implant placement, In the presence of diabetes, there is a delayed wound healing [3], especially in patients with poor glycemic control [4]. In both experimental [5] and clinical [6] studies, a reduced osseointegration was noticed, which may have led to an increased risk of failure. In patients who are undergoing or who earlier received treatment
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