Gordon Sharon M
University of Maryland, School of Dentistry Baltimore, Maryland, USA.
Compend Contin Educ Dent. 2007 May;28(5):248-60; quiz 261, 282.
Pain is a multistep process that originates in the peripheral nervous system at the site of injury, is transmitted and processed within the central nervous system, and is perceived at the level of the cerebral cortex. Each of these steps in pain transmission is subject to intervention, with the possibility of reducing or blocking the nociceptive information to result in decreased pain. Based on knowledge of pain processes, dentists can use analgesic strategies to prevent or reduce pain.
疼痛是一个多步骤过程,始于损伤部位的外周神经系统,在中枢神经系统内进行传递和处理,并在大脑皮层水平被感知。疼痛传递的每一个步骤都可能受到干预,从而有可能减少或阻断伤害性信息,以减轻疼痛。基于对疼痛过程的了解,牙医可以采用镇痛策略来预防或减轻疼痛。