The application of heat to the gutta-percha filling permits improved lateral and vertical compaction of the softened material. Ordinary hand and finger spreaders are not designed for this purpose, but the instruments illustrated in Figure 27 may be used. They are of various sizes, and have both a pointed tip for lateral spreading, and a flat tip for vertical compaction.
The instrument shown in Figure 28 is a System B, for the controlled and precise application of heat to the gutta-percha filling. Figure 29 shows an Obtura machine, used to deliver heated gutta-percha directly to the root canal. The use of these and other similar machines is described in Part 8.
The instrument shown in Figure 28 is a System B, for the controlled and precise application of heat to the gutta-percha filling. Figure 29 shows an Obtura machine, used to deliver heated gutta-percha directly to the root canal. The use of these and other similar machines is described in Part 8.