The use of gutta-percha as a standard obturation material has made little changes in the obturation technique. Resilon has been developed as an alternative to gutta percha (GP), but its advantages over gutta percha remain controversial. The aim of this study was to prepare a new root canal filling m.....[更多]
To absorb the shocks of the roads the vehicle spend energy . in this shock absorber we absorb the shocks and convert them to electricity and save it in the battery to be used in driving.[更多]
