OBTURATION MATERIALS
GUTTA PERCHA
66% Zinc Oxide*
20% GP content
Barium sulphate- radio opacifier
Property - inertness
Available alpha α & beta β forms, but most commonly used is beta form clinically
Sterilization-best option is NaOCl, Secondary option is CHX & Hydrogen peroxide
Alpha α GP – 42 to 49 °C, Thermoplasticised is the transition temperature of alpha GP.
This technique is called Thermoplasticised Tech.
SILVER POINTS
Best indicated in straight canals / fine canals
Instrument to hold silver pts – Stiglitz plier
This plier – extraction of fractured root tip
