II. Technical description of the HEROfill
Obturators
An obturator is a core of biocompatible plastic, sized according to ISO
standards, which is coated with thermoplastic gutta percha. A single unit
is all that is needed to totally obturate a root canal.
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A HEROfill
OBTURATOR CONSISTS OF THREE PARTS:
1. Plastic handle with a metal - insertion pin
The injection moulded plastic handle is colour-coded according to the size
of the obturator. The stainless steel insertion pin is 9 mm long and is
permanently attached to the plastic handle. The hollow portion of the
plastic core surrounds 6 mm of the pin.
2. Outer layer of thermoplastic Natural GP™ gutta percha
The gutta percha is reversible thermoplastic. This means that it becomes
soft and highly adhesive when heated to temperatures above approx.
100°C. When cooled it returns to a firm, rigid state.
3. Plastic core with endo stop
The tapered plastic core is sized according to ISO standards and is
sufficiently flexible to negotiate curved canals.
The length of the core is 24 mm. The coronal 6 mm of the core is hollow to
accommodate the metal insertion pin. A rubber endo stop is provided to
indicate the working distance measurement. The plastic core and gutta
percha are radiopaque.
24
Easily Detachable
ISO colour coded
handle
9 mm
24 mm
Hollow core
Rubber stop
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Metal pin
Rubber stop