title: Post and core fabrication for divergent canals with a cast post and core and a prefabricated dowel.
abstract: A post and core fabrication technique for multirooted teeth with divergent canals uses a combination cast post and core and prefabricated dowel. This method modifies and improves a previously reported method by using a nickel-silver technique post during casting to preserve the channel in the resin core pattern. Following casting, the nickel-silver post is dissolved with nitric acid. Minimal hand instrumentation with a post drill leaves a clean and accurate channel for cementation of an accessory prefabricated stainless steel or titanium post.
mesh_terms: D003735:Dental Casting Technique; D003786:Dental Pulp Cavity / Q000033:anatomy & histology; D006801:Humans; D009532:Nickel; D011176:Post and Core Technique / Q000295:instrumentation; D012834:Silver; D019553:Tooth, Nonvital