髓石是牙髓组织常见的一种退行性改变,是牙髓组织发生钙化的一种形式。髓石形成多见于髓室,一般无明显症状,长至一定大小(呈团块状)可从X线片见到。由于髓石不断地增大致髓腔狭窄压迫牙髓神经末梢而引起神经痛。髓石虽然多见,但引起神经痛的病例却不多,且这种神经痛常无牙体、牙周病变,因此诊断较困难,在临床上易和其它病混淆。现将笔者治疗的一例介绍如下。 Myeloid stone is a common degenerative changes in pulp tissue, is a form of calcification of pulp tissue. More to form pith in the pulp chamber, generally no obvious symptoms, grow to a certain size (was lumpy) can be seen from the X-ray. Neuralgia causes neuropathic pain due to myelosuperior enlargement of the medullary canal and the compression of the pulp nerve endings. Although more common stone, but cause of neuralgia cases are not many, and this neuralgia often no teeth, periodontal lesions, so the diagnosis is more difficult and clinically easy to be confused with other diseases. The author is an example of treatment are as follows.