16.有關被動式注射筒根管沖洗(passive syringe irrigati..-阿摩線上測驗
2F Cc 高二下 (2024/07/09)
Cohen's pathways of the pulp p.249
(B) 27 gauge injection needle external diameter 0.42mm, 30 gauge 0.32mm
(D) Narrow needles require more pressure and extrude the irrigant with higher velocity than large needle sizes, which extrude greater amounts of irrigants but cannot be introduced as deep. |