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Endodontic treatment aims to eliminate infection from the root canal system and prevent reinfection of periapical tissues. Inadequate endodontic procedures, such as insufficient canal debridement, improper working length determination, or poor obturation, may result in persistent intracanal infection. This can lead to periapical inflammation and the development of swelling, commonly presenting as a dentoalveolar abscess. Such complications not only cause patient discomfort but may also compromise the prognosis of the affected tooth. This case report highlights a clinical presentation of facial swelling resulting from failed endodontic treatment and discusses its management

A patient came to my attention complaining about impossibility to chew on the right side of the mouth. A defective restoration was found on the first upper molar, with a distal secondary decay. A decay was also present on the second upper molar. The diagnosis was of apical periodontitis in a previously treated tooth (16) […]

Re-treatment of C-shaped mandibular molars demands 3D cleaning and sealing beyond files; a stepwise strategy improves predictability.

Instrument separation is a well-recognized complication in endodontic practice, and its management can significantly influence the long-term prognosis of the tooth. While some fractured instruments are readily visible and accessible, others remain hidden, particularly when located beyond canal curvatures. Non-visible fragments pose a greater challenge, as blind retrieval attempts risk excessive dentin removal, perforation, or structural weakening of the root.

Mandibular molar retreatment due to an missed middle mesial canal. CBCT and Operanting Microscope are essential to identify the etiology and achieve three-dimensional disinfection. A Case Report

An interdisciplinary approach to dental treatment enables successful clinical outcomes and allows for the long-term functionality of seemingly hopeless teeth. A crucial stage in tooth preservation is the development of a treatment plan, which must be scientifically and clinically justified.   When formulating the plan, three key elements involved in the preservation process must be […]

Endodontic retreatment of a mandibular second molar with a C-shaped canal configuration presents unique clinical challenges due to its complex and variable anatomy. C-shaped canals, are commonly found in mandibular second molars, retreatment becomes complicated by the difficulty in completely cleaning, disinfecting, and obturating the root canal . Reasons related to treatment failure include missed […]

This case details the non-surgical retreatment of tooth 46 in a 40-year-old female presenting with symptomatic apical periodontitis. Clinical and radiographic evaluation revealed a poorly adapted crown, metallic posts, secondary caries, and tenderness. During retreatment, four canals were located, and a stripping perforation was identified in the mesiolingual canal—an area predisposed due to root concavity […]

The introduction of implant dentistry, in some cases, eliminated the need for non-surgical endodontic retreatment as well as the need for apical surgery. Proverb says: «When you have a hammer, everything around seems to be nails.» It’s well accepted that non-surgical retreatment of case of previously failed endodontic therapy provides good results.Success rates between 70% […]

This clinical case presents the nonsurgical endodontic retreatment of a mandibular first molar initially obturated with silver points. The tooth exhibited persistent periapical pathology and contained a missed, partially calcified canal, contributing to endodontic failure. The retreatment strategy involved the careful retrieval of silver points followed by meticulous canal negotiation and shaping using a modern […]

The R-One Mini System from Fanta Dental is an advanced reciprocating file system designed for efficient and conservative root canal shaping. In case of retreatment the reciprocating motion is a real key point to achieve a new patency inside the root.

The success of endodontic treatment depends on removing microorganisms from root canal system, three dimensionally sealing and the placement of a good coronal seal to prevent communications between oral cavity and the periradicular tissues  The operator should be able to assess the endodontic case and know about tooth anatomy and the suspected anatomical variations one […]