This study was designed to evaluate whether resin embedded transparent teet
h are as convenient to use as classical transparent teeth. For this purpose
demineralized human teeth were divided into coronal and radical portions,
and pulp tissue was extracted from the pulp chamber and root canals, into w
hich drawing ink was injected. After dehydration, the specimens were made t
ransparent in methyl salicylate and immersed in polyester resin. The divide
d portions were recombined at the polymerization. The resin embedded teeth
maintained transparency and the black-stained pulp chamber and root canals
showed morphological details. The resin embedded specimens could be handled
manually and observed freely from any angle. Previously, transparent teeth
have been observed in transparent media through a capped glass bottle. In
this respect the resin embedding method is superior to the classical method
. The new method will be helpful for investigating root canal morphology.