Dens in Dente, also called Dens en Dente or Dens Invaginatus or translated literally as “Tooth Within a Tooth” is a dental condition that develops during teeth formation in which the outer surfaces of the tooth become folded inward, resulting in what appears on dental x-rays as a small tooth growing inside the middle of a large tooth.
This happens most frequently on the crown of maxillary (upper) lateral incisors. Treatment and tooth prognosis are always unpredictable due to the highly variable anatomy.
I have personally seen dozens of patient with absolutely no dental decay in their mouths except for one tooth – a tooth with dens en dente.
Pre-op Diagnosis of Dens in Dente
This patient, a 36 year old male with no significant medical conditions, presented for a comprehensive dental exam and radiographs. His last visit was over 5 years ago. He avoided dental care due to fear.
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On clinical and radiographic exam, there were findings consistent with dens in dente on tooth #10 – maxillary left lateral incisor. I tested the tooth to insure vitality and it responded normally.