Deciduous Mandibular First Molar with Single Root and Single Canal: An Astounding Occurrence

Area of Science:

• Pediatric Dentistry
• Endodontics
• Dental Anatomy

Background:

• Primary mandibular first molars typically exhibit complex root anatomy.
• Congenital anomalies in tooth development can lead to unusual root canal morphology.
• Understanding variations in primary teeth is crucial for effective pediatric dental treatment.

Observation:

• A rare case of a primary mandibular first molar with a single root and single root canal was identified.
• This unique morphology may result from the failure of Hertwig's epithelial root sheath (HERS) invagination.
• The tooth presented with distinct anatomical characteristics requiring specialized evaluation.

Findings:

• Successful endodontic treatment (pulpectomy, obturation, and restoration) was achieved for the affected primary molar.
• The treatment underscores the importance of comprehensive knowledge of root canal evaluation and primary tooth anatomy.
• The case demonstrates that even highly unusual dental anomalies can be managed effectively.

Implications:

• This case expands the understanding of dental anomalies in primary dentition.
• It emphasizes the need for advanced diagnostic and therapeutic skills in pediatric endodontics.
• Clinicians should be prepared to manage rare morphological variations in primary teeth for optimal patient outcomes.