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患者,女,20岁,因右下后牙舌侧异物感就诊。检查:右下颌两前磨牙间有3mm间隙,舌侧可见异常突起,内含一多生牙,牙尖部分萌出且与前磨牙颈部紧密接触。X线片显示,此多生牙牙根基本发育完成,牙冠形态与前磨牙相似,牙全长19mm,最大
Patient, female, 20 years old, treated by right lower back lingual foreign body sensation. Check: There is a 3mm gap between the two teeth of the right lower jaw. Abnormal protrusion can be seen on the lingual side, which contains a multiplicity of teeth. The cusp part erupts and comes into close contact with the neck of the premolar. X-ray film shows that the basic development of the root of this multiple tooth is completed. The shape of the tooth crown is similar to that of the premolar. The total length of the tooth is 19 mm and the maximum