RESULTS: Vitality testing caused the SP-, CGRP-immunoreactive nerve fibers disappeared completely in the pulp but not in the periodontium or the gingiva.

• 结果：电活力测试仪刺激可使被测牙牙髓内SP、CGRP阳性纤维完全脱失，牙周组织及邻牙不受影响。