Recent advances in technology have led to development many gutta-percha obturating systems. One of the thermoplasticized gutta-percha injection system is Obtura II. This system may stand alone or be used along with standard obturation techniques. Many practitioners use the Obtura gun during classic warm vertical obturation to “BACKFILL” root canal systems after the “down- pack” of the master cone. The temperature range of the gutta percha is 165° to 200°C when injected into the canal space. The recommended technique for backfilling involves application of gutta percha in 4- to 5-mm increments, followed by uniform compaction with pluggers .
REF: JOE ,2009
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