New experimental setup for the measurement of cleaning efficacy and force of interdental aids in 3D-reproduced interdental areas.

摘要: Interdental rubber picks (IRP) have become a frequent and convenient alternative for interdental cleaning. However, only little evidence exists supporting the effectiveness of newer designs available on market. Therefore, new in vitro model was evaluated to measure experimental cleaning efficacy (ECE), as well force needed insertion during use IRP, with high reproducibility. Five different sizes commercially marketed IRP elastomeric fingers (IRP-F) (GUM SOFT-PICKS® Advanced, Sunstar Deutschland GmbH, Schonau, Germany) or slats (IRP-S) (TePe EasyPick™, TePe D-A-CH Hamburg, were tested. tooth surfaces reproduced by 3D-printer (Form 2, Formlabs Sommerville, MA, USA) according human teeth matched morphologically equivalent pairs (isosceles triangle, concave, convex) fitting gap (1.0 mm, 1.1 mm, 1.3 mm). The pre−/post brushing situations at areas (standardized cleaning, computer aided ten cycles) photographically recorded quantified digital image subtraction calculate ECE [%]. Forces registered load cell [N]. IRP-F be inserted significant higher forces 3.2 ± 1.8 N compared IRP-S (2.0 ± 1.6 N; p < 0.001) independent size type artificial area. During process showed significantly lower values pushing/pulling (1.0 ± 0.8 N/0.5 ± 0.4 N) (1.6 ± 0.8 N/0.7 ± 0.3 N; concomitant (19.1 ± 9.8 vs. 21.7 ± 10.0%, p = 0.002). Highest measured largest IRP-F/IRP-S morphology New aids can tested setup supported 3D printing technology. Within limitations an study, cleaned more effectively IRP-S.