Aspects in the Root Apex of an Immature Permanent Incisor Due to Trauma

Considerations of Dental Treatments and the Structural Mechanical Methods

Abstract

We encountered a case of intrusion of an immature permanent incisor caused by trauma. We examined the aspect of the root apex by performing dental treatment and structural mechanics analysis using the finite element method.
The results were as follows:
1. Because there is little effect on the root apex in the case of light tooth intrusion, we felt that we do not particularly need to perform dental treatments so that we let the root apex formation continue.
2. With the example of medium or severe tooth intrusion, we need to apply root apex obliteration so that the apecification of the root apex can be applied for pulp necrosis and the retention of root formation after restoration required due to severe tooth mobility.
We suggest protracted observation of the root ape x as root resorption and root fracture after root apex obliteration occasionally occur.