颌面裸露于外,易受外伤和异物刺入,如外伤明显,诊断不难;反之,易延误诊治。现将我科收治的无明显外伤史之颌面部非金属异物刺入4例介绍如下。病例情况:见附表。治疗经过:患者均因面部红肿、疼痛,曾在当地卫生所肌注抗生素及外用药和脓肿切开术等治疗,伤口未能痊愈而来我科求治。我们根据患者病变特点,细查口内外及全身情况,排除其它原因后,疑为非金 Maxillofacial exposed, vulnerable to trauma and foreign body penetration, such as trauma significantly, the diagnosis is not difficult; the other hand, easy to delay diagnosis and treatment. Now admitted to our department without obvious history of traumatic maxillofacial non-metallic foreign body into four cases described below. Case situation: see schedule. After treatment: patients were due to facial swelling, pain, antibiotics and antibiotics in the local health clinic and abscess incision and other treatment, the wound failed to cure my department for treatment. According to the characteristics of the patient's lesion, scrutinize both inside and outside the mouth and the general condition, excluding other reasons, the suspected non-gold