Mandibular second molar with 3 mesial canals and a radix paramolaris

Area of Science:

• Dentistry
• Endodontics
• Anatomy

Background:

• Mandibular molars typically possess two roots: mesial and distal.
• Variations include radix entomolaris (lingual extra root) and the rarer radix paramolaris (RP) (buccal extra root).
• Recent studies identify additional canals within mesial and distal roots, such as middle mesial and middle distal canals.

Observation:

• This report focuses on a mandibular second molar exhibiting unique anatomical features.
• The observed anomaly includes three distinct canals within the mesial root.
• A radix paramolaris (RP) was also identified on the buccal side.

Findings:

• The mandibular second molar presented with a highly unusual root canal morphology.
• Specifically, the mesial root contained three separate canals.
• The presence of a radix paramolaris (RP) represents a rare anatomical variation.

Implications:

• Understanding these complex root anatomies is crucial for successful endodontic treatment.
• This case underscores the importance of thorough radiographic and clinical examination in diagnosing root canal variations.
• Such findings contribute to the existing knowledge base on mandibular molar anatomy, aiding clinicians in complex cases.