Predin Djuric Natasa, Van Der Vyver Peet, Vorster Martin, Vally Zunaid Ismail
Department of Odontology, Faculty of Health Sciences, School of Dentistry, Oral and Dental Hospital, University of Pretoria, Pretoria, Gauteng, South Africa.
Aust Endod J. 2021 Dec;47(3):394-400. doi: 10.1111/aej.12490. Epub 2021 Feb 27.
The aim was to evaluate apical debris extrusion produced by a single-file system used in counter-clockwise reciprocation and compare it to rotary single-file systems used in clockwise rotation and clockwise reciprocation. A total of 100 first mandibular molars were divided into five groups (n = 20): (i) WaveOne Gold Glider and Primary instrument in counter-clockwise reciprocation; (ii) One G and One Curve file in clockwise rotation; (iii) One G and One Curve file in clockwise reciprocation; (iv) TruNatomy Glider and Prime instrument in clockwise rotation; and (v) TruNatomy Glider and Prime instrument in clockwise reciprocation. Apical debris extruded was measured after glide path preparation and canal preparation. WaveOne Gold displayed significantly higher amounts of apical debris extrusion in all the groups (P < 0.05). The lowest mean values were recorded by clockwise reciprocation groups: TruNatomy Glider, One Curve and TruNatomy Glider and Prime combined value, for glide path, canal preparation and combined mean values, respectively.
本研究旨在评估逆时针往复运动中使用的单根管器械所产生的根尖碎屑挤出情况，并将其与顺时针旋转和顺时针往复运动中使用的旋转单根管器械进行比较。总共100颗下颌第一磨牙被分为五组（n = 20）：（i）WaveOne Gold Glider和Primary器械进行逆时针往复运动；（ii）One G和One Curve锉进行顺时针旋转；（iii）One G和One Curve锉进行顺时针往复运动；（iv）TruNatomy Glider和Prime器械进行顺时针旋转；（v）TruNatomy Glider和Prime器械进行顺时针往复运动。在预备引导通路和根管预备后测量根尖碎屑挤出量。WaveOne Gold在所有组中均显示出显著更高的根尖碎屑挤出量（P < 0.05）。顺时针往复运动组记录到的平均值最低：分别为TruNatomy Glider、One Curve以及TruNatomy Glider和Prime组合器械在引导通路、根管预备及综合平均值方面的最低值。
