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After endodontic therapy has been executed, or re-executed, successfully, and the canals can no longer provide a nutrient-rich habitat for microbes, [31] the issue of bone healing comes into focus. Ostensibly, then, for regeneration to occur, the root canal system must have been decontaminated and further access to microbial invasion must be ...
The filling promotes cementum and bone formation, [21] [22] blocks bacteria, and is a barrier for the root canal. Inflammation of the periradicular site due to bacteria could cause recovery to deteriorate and induce periradicular infection. [22] Careful evaluation of root canal filling material is required to optimise healing after the procedure.
Unless they are symptomatic, teeth treated with root canal therapy should be evaluated at 1- and 2-year intervals after the root canal therapy to rule out possible lesional enlargement and to ensure appropriate healing. Abscesses may fail to heal for several reasons: Cyst formation; Inadequate root canal therapy; Vertical root fractures
Risk of occurrence of a phoenix abscess is minimised by correct identification and instrumentation of the entire root canal, ensuring no missed anatomy. Treatment involves repeating the endodontic treatment with improved debridement, or tooth extraction. Antibiotics might be indicated to control a spreading or systemic infection.
A specialist can often re-treat failing root canals, and these teeth will then heal, often years after the initial root canal procedure. [citation needed] The survival or functionality of the endodontically treated tooth is often the most important aspect of the endodontic treatment outcomes, rather than its apical healing alone. [48]
Removal of the necrotic pulp and the inflamed tissue as well as proper sealing of the canals and an appropriately fitting crown will allow the tooth to heal under uninfected conditions. [2] Surgical options for previously treated teeth that would not benefit from root canal therapy include cystectomy [12] and cystostomy. [12]
An unusual root canal shape, complex branching (especially the existence of horizontal branches), and multiple root canals are considered as the main causes of root canal treatment failures. (e.g. If a secondary root canal goes unnoticed by the dentist and is not cleaned and sealed, it will remain infected, causing the root canal therapy to fail).
The most common location of dry socket: in the socket of an extracted mandibular third molar (wisdom tooth). Since alveolar osteitis is not primarily an infection, there is not usually any pyrexia (fever) or cervical lymphadenitis (swollen glands in the neck), and only minimal edema (swelling) and erythema (redness) is present in the soft tissues surrounding the socket.