title: [The manufacture and application of compound cast post-core in maxillary molars].
abstract: OBJECTIVE
  To investigate the clinical results of compound cast post-core in maxillary molars.
  
  
  METHODS
  Compound cast post-core was used to repair maxillary molars which had wide defects in crowns and had difficulty in finding the common insert path.
  
  
  RESULTS
  Compound cast post-cores were used in 32 patients for 35 teeth. Full crown or fixed bridge were then fabricated. There was no post-core lost during a follow up of 1 to 5 years.
  
  
  CONCLUSIONS
  Compound casting post-core not only solved the problem of making cast post-core in complex maxillary molars, but also improved the retention of these post-cores and strengthened the restorations by using the undercut area of the teeth.
authors.affiliation: Department of Dentistry, Shanghai Youdian Hospital, Shanghai, China. LJ591008@hotmail.com
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.forename: Jue
authors.initials: J
authors.lastname: Xu
authors.forename: Wei-cheng
authors.initials: WC
authors.lastname: Wang
mesh_terms: D003442:Crowns; D003764:Dental Materials; D006801:Humans; D008437:Maxilla; D008963:Molar; D011176:Post and Core Technique / Q000295:instrumentation*
chemical_list: D003764:Dental Materials