Extensive external localized idiopathic root resorption - An unusual case report.

Area of Science:

• Dental Science
• Endodontics
• Oral Pathology

Background:

• External root resorption (ERR) is a complex dental condition with multiple contributing factors.
• Idiopathic external root resorption presents a diagnostic challenge due to the absence of identifiable causes.
• The management of extensive root resorption requires specialized endodontic approaches.

Observation:

• An unusual case of localized idiopathic extensive external root resorption affected the entire mesial root of a mandibular first molar in a 42-year-old female.
• No clear systemic, dental, or familial etiological factors were identified.
• The idiopathic nature of the resorption made diagnosis and treatment planning complex.

Findings:

• Nonsurgical endodontic therapy was performed using mineral trioxide aggregate (MTA) to obturate the resorbed root canals.
• A comprehensive 5-year follow-up demonstrated favorable clinical and radiographic outcomes.
• Tooth mobility remained within acceptable physiological limits post-treatment.

Implications:

• This case highlights the potential efficacy of nonsurgical endodontic treatment with MTA for managing extensive idiopathic external root resorption.
• Mineral trioxide aggregate serves as a viable biomaterial for sealing resorbed canals and promoting healing.
• Further research into the etiology and advanced treatment modalities for idiopathic external root resorption is warranted.