Preclinical performance of a novel dental implant design reducing mechanical stress in cortical bone
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MDPI
Abstract
This animal study compared the healing performance of a novel implant design
characterized by a shift in thread geometry and core diameter with two different surfaces
with that of an apically tapered implant. Test Bioactive (n = 9), Test Porous (n = 7) and
Control (n = 8) implants were placed in the mandibles of minipigs. Following healing,
bone samples were harvested for determining bone-to-implant contact (BIC) and marginal
bone loss (MBL). Comparative statistics were based on Levene’s test, Shapiro–Wilk tests,
the Kruskal–Wallis test and Wilcoxon tests with Holm correction (α = 0.05). The mean
undersizing of the osteotomy was 0.15 mm for Control, while in the test groups 0.33 mm and
0.34 mm were calculated. Insertion torques ranged from 61.5 Ncm (Control) to 76.1 Ncm
(Test Bioactive). Maximum BIC was seen in Test Porous with 55.83%, while Test Bioactive
showed only 48.11%. MBL was 4.1 mm in Test Bioactive, while Test Porous and Control
exhibited 2.8 mm. No significant differences between the implant groups were observed
(p > 0.05). Despite greater undersizing, the novel implant type performed comparably to
the established Control implants. The rougher surface of the bioactive implants increased
the insertion torque and led to more MBL.
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Philipps-Universität Marburg
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Except where otherwised noted, this item's license is described as Attribution 4.0 International