Danielsson K, Evers H, Nordenram A
Swed Dent J. 1984;8(6):265-9.
In an experimental study, comprising 1662 injections performed by 120 dental students, the number of aspirations, which were positive for blood was recorded. The highest frequency of positive blood findings in the cartridges by aspiration was found with the mandibular block injections (11,3 per cent). The results are similar to those described in earlier investigations, in which experienced clinicians made the injections. Thus, the clinical experience does not seem to be of determining importance in this connection.
在一项实验研究中，120名牙科学生进行了1662次注射，并记录了回抽见血的次数。在下颌阻滞注射中，回抽时药筒内出现阳性血液发现的频率最高（11.3%）。这些结果与早期由经验丰富的临床医生进行注射的调查中所描述的结果相似。因此，在这方面，临床经验似乎并不是决定性的因素。
