Prolonged and possibly permanent change in sensation due to nerve damage can occur after dental injections.
长期和永久的变化可能是由于感觉神经受损后，可能会发生牙科注射。
This article presents an advanced dental diagnostic instrument-the pre-pain sensation electric pulp tester with current indication.
本文报道了一种先进的牙科专用诊断仪器——痛前反应型电流指示式牙髓活的测试仪。
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