to use a vacuum assisted curing process in this embodiment the mold of the root canal void is filled with wax which is molded to approximate the shape of the intended shape of the post 14 then a kneadable silicone compound is used to form a secondary mold or u201c index u201d around the wax the wax may then be removed and the mold and index filled with the composite material this combination may then be inserted into a light curing vacuum unit such as a vectris u00ae vs 1 unit in a machine such as this a membrane is placed over the mold and index and a vacuum applied underneath the membrane while the composite material is light cured the application of a vacuum during the curing process may increase the strength of the cured product by reducing air bubbles present in the composite material without the additional support of the index the application of the vacuum to the membrane may cause the shape of the post to distort during the curing process after curing the index may be removed and the post 14 is now ready for application of the core 16 and the crown 18 upon curing the bundle 14.