口腔颌面部损伤可致异物存留。在临床上常见的异物为金属异物和非金属异物两大类。导致异物存留的原因与年龄、性别、职业,甚至与爱好习惯有一定的关系。口腔颌面部外伤后植物性异物的存留,多见于儿童,因儿童爱玩树枝、木棍或爬树不慎摔跤戳伤致异物存留。对这类异物的诊断,X 线片诊断难以发现异物, Oral and maxillofacial lesions can cause foreign body retention. Common clinical foreign body metal foreign body and non-metallic foreign body two categories. Causes of foreign body retention and age, gender, occupation, and even hobbies have a certain relationship. Oral and maxillofacial traumatic plant foreign body retention, more common in children, because children love playing branches, sticks or tree climbing accidentally wrestling poaching caused by foreign body retention. The diagnosis of such foreign body, X-ray diagnosis difficult to find foreign body,