Endodontic Retreatment
Endodontic Retreatment - Related Videos
03:07
Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses
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Cited by 1 •
2024
Here, we present a protocol for evaluating the surface characteristics of endodontic retreatment files after repeated use in retreatment procedures, utilizing scanning electron microscopy to identify and analyze potential surface defects.
07:14
Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
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Cited by 4 •
2022
Guided endodontics describes a template-aided approach for access cavity preparation. The procedure requires cone-beam computed tomography and a surface scan to produce a template. An incorporated sleeve guides the drill to the target point. This allows the preparation of minimally invasive endodontic access cavities in calcified teeth.
07:03
Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
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Cited by 8 •
2022
Dynamic navigation systems (DNS) provide real-time visualization and guidance to the operator during endodontic access cavities preparation. The planning of the procedure requires three-dimensional imaging utilizing cone beam computed tomography and surface scans. After the export of the planning data to the DNS, access cavities can be prepared with minimal invasion.
06:03
The Active Place Avoidance (APA) Test, an Effective, Versatile and Repeatable Spatial Learning Task for Mice
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Cited by 3 •
2024
Here, we present a protocol for the active place avoidance test, a hippocampus-dependent spatial learning paradigm designed for rodents. Altering key parameters allows for re-testing of animals before and after treatments or over time.
09:06
Stereotactic Injection of MicroRNA-expressing Lentiviruses to the Mouse Hippocampus CA1 Region and Assessment of the Behavioral Outcome
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Cited by 23 •
2013
MicroRNAs have significant roles in brain structure and function. Here we describe a method to enforce hippocampal miRNA over-expression using stereotactic injection of an engineered miRNA-expressing lentivirus. This approach can serve as a relatively rapid way to assess the in vivo effects of over-expressed miRNAs in specific brain regions.
FAQs
Persistent disease after prior treatment can reflect canals that were missed or inadequately treated, allowing infection to remain within the canal system. Microbial leakage through an incompletely sealed system may also contribute to recurrent symptoms or new periapical pathology. Retreatment targets these sources rather than simply observing the tooth’s existing filling.
Removing the existing obturation materials gives the clinician access to the canal system beneath the previous filling. This access permits evaluation for missed or inadequately treated canals, followed by disinfection and preparation before replacement of the filling. The final resealing step is important because it helps limit microbial leakage into the treated system.
Radiographic assessment helps determine whether retreatment is appropriate by showing findings associated with persistent disease, recurrent symptoms, or new periapical pathology. It also provides a basis for evaluating the tooth and supporting treatment planning. After treatment, radiographic follow-up can help assess whether periapical healing is developing.
The procedure begins by reopening the access cavity and removing the previous root canal filling. The clinician then seeks canals that were missed or inadequately treated, disinfects and prepares the canal system, and replaces the obturation material. Resealing the system completes the procedure and helps reduce the possibility of microbial leakage.
Clinicians may consider endodontic retreatment when a previously treated tooth remains diseased, develops recurrent symptoms, or shows new periapical pathology. Radiographic assessment helps determine whether the tooth is suitable for this approach. When appropriate, retreatment offers a way to address ongoing disease while preserving the natural tooth rather than removing it.
The treatment is directed toward conditions that can interfere with healing around the root, including persistent infection and microbial leakage from an inadequately sealed canal system. By locating, disinfecting, and resealing the canals, retreatment addresses these factors. Its clinical relevance lies in supporting periapical healing while maintaining the natural tooth.