Donkor P, Wong J
Department of Oral Surgery and Oral Medicine, Faculty of Dentistry, University of Sydney, Surry Hills, New South Wales.
Aust Dent J. 1991 Feb;36(1):47-50. doi: 10.1111/j.1834-7819.1991.tb00808.x.
Three patients with severe gagging problems requiring mandibular molar extractions and who could not tolerate conventional block injections were successfully given closed-mouth mandibular block injections without provoking any retching. This technique permits patients to concentrate on clenching their teeth during the injection. This displacement activity, combined with the reduction in tactile sensation following anaesthesia, helps to prevent gagging.
三名有严重恶心问题、需要拔除下颌磨牙且无法耐受传统阻滞注射的患者成功接受了闭口下颌阻滞注射，未引发任何干呕。该技术使患者在注射过程中能够专注于咬紧牙关。这种替代活动，再加上麻醉后触觉的降低，有助于防止恶心。
