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Related Experiment Video

Updated: Apr 19, 2026

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry

Published on: February 2, 2018

Complete pre-eruptive idiopathic crown resorption.

Gianguido Cossellu¹, Francesca Angiero², Giampietro Farronato³

¹School of Dentistry, Department of Biomedical, Surgical and Dental Sciences, Unit of Orthodontics and Pediatric Dentistry, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy. studiocossellu@hotmail.it.

Pediatric Dentistry

|December 17, 2014

Summary

This study details a rare case of complete idiopathic tooth resorption before eruption in a 12-year-old boy. This unusual dental condition affected the permanent mandibular third molar, leading to its absence.

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Area of Science:

Dentistry
Oral Pathology

Background:

Idiopathic tooth resorption is a rare dental anomaly.
Most reported cases involve partial crown resorption, affecting teeth after mineralization.
Complete pre-eruptive idiopathic crown resorption is exceptionally uncommon.

Observation:

A 12-year-old boy presented with incidental radiographic findings during orthodontic evaluation.
The case involved complete idiopathic resorption of a permanent mandibular third molar.
Secondary failure of eruption was noted for the permanent mandibular first molar.

Findings:

Cone beam computed tomography and computed tomography confirmed the resorption.
A one-year follow-up panoramic radiograph verified the absence of the third molar.
No known preventive or therapeutic strategies exist for this condition.

Implications:

This case highlights the importance of thorough radiographic examination in orthodontics.
It expands the understanding of idiopathic tooth resorption spectrum.
Further research is needed to explore the etiology and potential management of this rare condition.