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.
Highlights
Permanent Mandibular Molars (PMM) usually have two roots: mesial and distal [1]
Supernumerary root was diagnosed using a 3T whole-body Magnetic Resonance Imaging (MRI) system. This case confirmed the association between supernumerary roots and increased buccal crown cusps in a mandibular molar
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
Summary
Permanent Mandibular Molars (PMM) usually have two roots: mesial and distal [1]. In certain cases, a supernumerary third root is present. Depending on the anatomic location of the supernumerary root, it is either called Radix entomolaris (RE) if it is located lingually or Radix paramolaris (RP) if it is located buccally [2, 3]. Both RE and RP may be separate or fused with other roots. 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%. Before the second phase of treatment, unilateral radix paramolaris on the second right permanent mandibular molar was discovered
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