上颌第三磨牙牙根的数目和形态变异较大,但为五个牙根者极为少见。现将我院口腔科一例报告如下。患者,女,28岁。主因右上后牙持续性疼痛8日,逐渐加剧,来我科诊治。检查:■下垂■阻生拔除一年余),面大部分用树脂修复,叩痛(+)。在右上牙槽后神经、腭前神经阻滞麻醉下 The number and morphology of maxillary third molars varied greatly, but it was extremely rare for five root molars. Now a report of our hospital stomatology is as follows. Patient, female, 28 years old. The main cause of persistent pain on the right upper teeth on the 8th, gradually aggravated, to our department diagnosis and treatment. Check: ■ drooping ■ impacted black removal more than a year), most of the noodles with resin repair, percussion pain (+). In the upper right alveolar nerve, palate anterior nerve block anesthesia