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CASE REPORT

The Use of Magnetic Resonance Imaging in Diagnostics of Radix Paramolaris: A Case Report

The Open Dentistry Journal 31 December 2021 CASE REPORT DOI: 10.2174/1874210602115010760

Abstract

Background and Objectives:

This case report aims to present a rare morphological variation of Radix Paramolaris (RP) diagnosed using Magnetic Resonance Imaging (MRI) to discuss its morphological associations and possible implications on dental treatment. Radix paramolaris is a buccally located supernumerary root of the permanent mandibular molars. It is very rare in the European population, with a prevalence below 4%.

Case Presentation:

A 7-year-old boy with severe Class II malocclusion is presented. The first phase of orthodontic treatment consisted of therapy with a removable activator appliance. Before the second phase of treatment, unilateral radix paramolaris on the second right permanent mandibular molar was discovered.

Results:

Supernumerary root was diagnosed using a 3T whole-body MRI system. This case confirmed the association between supernumerary roots and increased buccal crown cusps in a mandibular molar. Furthermore, it demonstrated the effectiveness of non-invasive MRI as a complementary diagnostic tool, offering clear advantages in diagnosing rare morphological variations such as supernumerary roots. Unlike conventional radiography, MRI is able to distinguish the soft tissues, including the dental pulp, and does not emit ionizing radiation.

Conclusion:

To diagnose a supernumerary root and the state of its pulpal tissue, a precise radiographic and clinical examination is required since awareness of exact root morphology can be of paramount importance in clinical decision-making for several dental procedures.

Keywords: Mandibular molar, Supernumerary tooth root, Magnetic resonance imaging, Dental pulp, Radix paramolaris, Case report, Orthodontic malocclusion.
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