000K  utf8
1100  $c2022
1500  eng
2050  urn:nbn:de:gbv:8:3-2024-00334-3
2051  10.1007/s00784-022-04525-7
3000  Graetz, Christian
3010  Cyris, Miriam
3010  Dörfer, Christof Edmund
3010  Düffert, Paulina
3010  Geiken, Antje
3010  Hülsbeck, Viktor
3010  Schorr, Susanne
3010  Straßburger, Martin
4000  Influence of flow rate and different size of suction cannulas on splatter contamination in dentistry: results of an exploratory study with a high-volume evacuation system$hSpringer Science and Business Media LLC  [Graetz, Christian]
4030  $nSpringer Science and Business Media LLC
4209  Objectives SOPs recommend high-volume evacuation (HVE) for aerosol-generating procedures (AGPs) in dentistry. Therefore, in the exploratory study, the area of splatter contamination (SCON in %) generated by high-speed tooth preparation (HSP) and air-polishing (APD) was measured when different suction cannulas of 6 mm diameter (saliva ejector (SAE)), 11 mm (HC11), or 16 mm (HC16) were utilized versus no-suction (NS). Materials and methods Eighty tests were performed in a closed darkened room to measure SCON (1m circular around the manikin head (3.14 m2) via plan metrically assessment through fluorescence technique. HSP (handpiece, turbine (Kavo, Germany)) or APD (LM-ProPowerTM (Finland), Airflow®-Prophylaxis-Master (Switzerland)) for 6 min plus 5 s post-treatment were performed either without suction or with low-flow (150 l/min for SAE) or high-flow rate (250 l/min/350 l/min for HC11/HC16) suction. All tests were two-tailed (p≤0.05, Bonferroni corrected for multi-testing). Results Irrespective the AGP, SCON was higher for NS (median [25th; 75th percentiles]: 3.4% [2.6; 5.4]) versus high-flow suction (1.9% [1.5; 2.5]) (p=0.002). Low-flow suction (3.5% [2.6; 4.3]) versus NS resulted in slightly lower but not statistically significantly lower SCON (p=1.000) and was less effective than high-flow suction (p=0.003). Lowest contamination values were found with HC16 (1.9% [1.5; 2.5]; p≤0.002), whereat no significant differences were found for HC11 (2.4% [1.7; 3.1]) compared to SAE (p=0.385) or NS (p=0.316). Conclusions Within study's limitations, the lowest splatter contamination values resulted when HC16 were utilized by a high-flow rate of ≥250 l/min. Clinical relevance It is strongly recommended to utilize an HVE with suction cannulas of 16mm diameter for a high-flow rate during all AGPs and afterwards also to disinfect all surface of patients or operators contacted.
4950  https://doi.org/10.1007/s00784-022-04525-7$xR$3Volltext$534
4950  https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00334-3$xR$3Volltext$534
4961  https://macau.uni-kiel.de/receive/macau_mods_00004616
5051  610
5550  Aerosols
5550  Air-polishing
5550  Cannula
5550  Dentistry
5550  Experimental Setup
5550  Finland
5550  Humans
5550  Sars-cov2
5550  Splatter Contamination
5550  Suction
5550  Suction System
5550  Tooth Preparation
5550  Tooth Preparation