Result:One case originated from the supernumerary teeth on the floor of left nasal cavity, and the other left reversed lateral incisor.

• 结果:1例起源于左鼻腔底额外牙的含牙囊肿,另1例起源于左鼻腔底倒生侧切牙的含牙囊肿,均有同侧上唇、鼻旁的反复肿胀史。