Prof. Stéphane Simon
The traditional single cone technique is still very popular among practitioners being quick and easy to perform. This technique consists in by employing a single cone with a large amount of sealer, which acts as a filling material. Unfortunately, the currently used sealers are poorly resistant to dissolution. As a consequence, with time, the canal is again contaminated with bacteria, leading to treatment failure and the development of an inflammatory apical lesion. Thereby, although being easy to accomplish, the single cone technique is not recommended for root canal filling (Beatty 1987; Pommel et Camps 2001).
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