原发性三叉神经痛疗法颇多,但疗效多不巩固或不明显,颅内手术尚有一定危险性。我科自1979年5月起,对10例三叉神经痛患者应用由颌面部骨孔内注入维生素B_(12)治疗,取得了一定效果,现报告如下。临床资料一般情况:10例中,男性6例,女性4例;年龄44～61岁;病程1～3个月者2例, A lot of primary trigeminal neuralgia, but the effect is not consolidated or more obvious, intracranial surgery is still a certain risk. Our department from May 1979 on the application of 10 cases of trigeminal neuralgia from the maxillofacial bone injection of vitamin B_ (12) treatment, and achieved some results are as follows. Clinical data General: 10 cases, 6 males and 4 females; aged 44 to 61 years; duration of 1 to 3 months in 2 cases,