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  • Non-Surgical Root...

Non-Surgical Root Canal Resolves Rare Mandibular Molar Malformation in Teenager: Case Report

Written By : Medha Baranwal |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2025-06-16T20:45:31+05:30  |  Updated On 17 Jun 2025 9:42 AM IST
Non-Surgical Root Canal Resolves Rare Mandibular Molar Malformation in Teenager: Case Report
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Spain: In a recently published case report in the Journal of Endodontics, researchers from Spain have detailed the successful non-surgical management of a rare and complex dental anomaly—Dens Invaginatus (DI)—in a mandibular first molar of a teenage boy, emphasizing the value of conservative treatment paired with advanced diagnostic imaging.

The case involved a 14-year-old boy who presented with pain and swelling in the lower right molar region, specifically tooth #30. Upon examination, the tooth exhibited an unusual crown shape but no visible signs of decay. Despite these atypical features, the tooth remained firm with normal periodontal probing depths. Further investigation through intraoral radiographs and cone beam computed tomography (CBCT) revealed the presence of Oehlers’ Type II Dens Invaginatus—an uncommon developmental anomaly where enamel and dentin fold into the pulp cavity—and a large radiolucent area around the root, indicative of periradicular pathology.

The patient’s medical history was also noteworthy. Born prematurely at 32 weeks, he had undergone intrauterine feto-fetal blood transfusion and had experienced both stroke and respiratory arrest at birth. Despite these early health complications, he was in good general health at the time of evaluation.

Given the complexity of the case, a conservative, non-surgical approach was selected. Root canal therapy was carried out with precision to thoroughly clean and disinfect the canal system, which is often complicated in teeth affected by DI due to their highly variable internal anatomy. The root canal system was subsequently sealed with a biocompatible filling material, ensuring long-term integrity.

The patient was monitored for 46 months. Throughout this follow-up, he remained asymptomatic, with no pain or sensitivity, and the treated tooth remained stable and functional. Most significantly, radiographic examinations confirmed progressive and ultimately complete healing of the periapical tissues.

The authors emphasized that, to their knowledge, very few cases of DI in mandibular molars have been conservatively managed with guidance from CBCT imaging. This report not only showcases a successful treatment outcome but also underscores the critical role of advanced imaging tools in diagnosing and planning treatment for complex dental anomalies. CBCT allowed for precise visualization of the abnormal anatomy, which contributed to the tailored, effective treatment strategy.

The authors conclude, "The case contributes to the limited body of literature on non-surgical treatment of Dens Invaginatus in lower molars, demonstrating that even challenging anatomical cases can be managed effectively with modern endodontic techniques and technology."

Reference:

Cantarini, J. M., Sans, F. A., Abbott, P. V., & Garcia-Font, M. (2025). Non-surgical endodontic treatment of an atypical mandibular first molar with a Dens Invaginatus and a large periradicular radiolucency – A case Report. Journal of Endodontics. https://doi.org/10.1016/j.joen.2025.05.023


Journal of EndodonticsRoot Canal TreatmentEndodonticsDens InvaginatusPediatric DentistryMandibular MolarCBCT ImagingMinimally Invasive DentistryTooth Anomalies
Source : Journal of Endodontics
Medha Baranwal
Medha Baranwal

    MSc. Biotechnology

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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