Examples of sprue

• Most retain casting sprues, and the suspension loops and resonators filled with metal during the casting process.

• Detached casting sprues were found, which could have been trimmed off suspension loops or other cast artifacts.

• Production tools and debris have also been found and include crucibles, casting sprues, prills, bell clusters, and failed bells.

• Casting sprues are remnants from the lost-wax casting process and the means by which the metal entered the mold to form the bell.

• The failed bells and casting sprues were then put into the crucibles to recycle them into new objects.

• A small number of patients have a true 'refractory sprue'.

• Other bells were miscast or retained the casting sprues, which may indicate local production.

• As noted in the four intact crucibles, the lumps of metal were composed of casting sprues and failed bells.

• Since a scale was unavailable for part of the study, weight was taken only of metal fragments and discarded casting sprues.

• Casting sprues were not trimmed from the suspension loops of 60.46% of bells at the site, and several bells had extra casting sprues adhering to the exterior surface.

• Immunopathology of the evolving celiac sprue lesion.

• Casting sprues form as metal fills the mold and may either be trimmed off after the bell has cooled or remain attached to the suspension loop.

• Once the crown has cooled, the technician can remove the sprue, fit and polish the crown ready for cementation.

• They were able to use liver extract therapy to treat tropical sprue successfully.

• The wax pattern can be removed from the model and a wax sprue pattern is attached.