In vitro study compares primary stability and insertion torque of different implant thread designs, suggesting design effectiveness varies by system.
Within the limits of this in vitro study, progressive thread designs were associated with increased primary stability in the overall analysis. However, this effect was not consistent across all manufacturer-matched implant systems, suggesting that macrodesign-related performance is system-specific rather than universally dependent on design.
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Gehrke et al. (2026) studied this question.
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