match of the appropriate gutta percha core cone 10 allows the dentist to achieve a precision fit in endodontics much like a precision fit in industry as a result of this technique clinicians can now not only fill a root canal 2 faster thereby saving the patient time but also they can fill it better in a true three dimensional sense because the fit is precise the cement layer of luting agent sealer 8 between the gutta percha core cone 10 and the tooth structure 1 inside walls of the root canal 2 is very thin a thin cement layer of luting agent sealer 8 is far less prone to shrinkage as compared to heated gutta percha which shrinks significantly upon cooling additionally when the interior of the root canal is properly conditioned with a chelating agent such as etda the dentinal tubules and lateral canals are opened sufficiently to allow the sealer luting agent to fill the spaces the result is a better bond retention between the gutta percha and the dentinal wall as well as more effective obturation of the lateral canals also the modification of the gutta percha with silanated particles that bond to similar particles in the luting agent will result in less shrinkage consequently the goal of a true hermetic seal is closer to being achieved with the gutta percha core cone technique than any other prior art methods the unique design features of the gutta percha core cone 10 along with the characteristics achieved by optionally.