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Thus, non-restorable carious destruction is the main reason for extraction of teeth after root canal therapy, accounting for up to two-thirds of these extractions. [32] Therefore, it is very important to have regular X-rays taken of the root canal to ensure that the tooth is not having any problems that the patient would not be aware of.
The cost of the restoration is typically cheaper than composite restorations. Disadvantages of amalgam include poor aesthetic qualities due to its colour. Amalgam does not bond to tooth easily, hence it relies on mechanical forms of retention. Examples of this are undercuts, slots/grooves or root canal posts.
Therefore, in order to assess this risk and inform the patient, the position of the inferior alveolar nerve in relation to a lower wisdom tooth needs to be assessed radiographically prior to extraction. [20] The proximity of the root to the canal can be assessed radiographically and there are several factors which can indicate high risk of ...
A root end surgery, also known as apicoectomy (apico-+ -ectomy), apicectomy (apic-+ -ectomy), retrograde root canal treatment (c.f. orthograde root canal treatment) or root-end filling, is an endodontic surgical procedure whereby a tooth's root tip is removed and a root end cavity is prepared and filled with a biocompatible material.
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.
Coronectomy should be considered if there are signs that the patient is at a high risk of nerve damage during extraction: Lower wisdom tooth is shown to be close to the inferior alveolar canal radiographically: [6] Signs of narrowing or diversion of the canal; Roots are darkened/ Canal is interrupted; Interruption of lamina dura