Kuster C G, Udin R D
ASDC J Dent Child. 1985 May-Jun;52(3):183-7.
Blood was aspirated in 1.7 percent of the cases, 3.1 percent of inferior alveolar block cases, and 2.2 percent of the cases where infiltration was used for the maxillary molars. It was in children eight to ten years of age that 67.2 percent of the positive aspirations occurred, although that age-group composed only 44.5 percent of the sample.
在1.7%的病例、3.1%的下牙槽阻滞麻醉病例以及2.2%的上颌磨牙浸润麻醉病例中出现了血液抽吸情况。尽管8至10岁儿童仅占样本的44.5%，但该年龄组却出现了67.2%的阳性血液抽吸情况。
