title: [Application of bolt-like casting post in posterior fixed partial denture].
abstract: OBJECTIVE
  To study the manipulation procedure and application of a new post-core system in posterior fixed partial dentures.
  
  
  METHODS
  Abutment tooth canals were firstly prepared according to respective canal directions and then complete crown preparation was made following standard procedures. The impression of prepared abutment teeth was taken with silicone and specially made syringe. The fixed partial denture and bolt-like post were fabricated respectively and lastly the two parts were glued together in patient after try-in.
  
  
  RESULTS
  All the fixed partial denture with the new post-core system did not get loose and there was no abutment tooth fractured after 23 months in use.
  
  
  CONCLUSIONS
  This new post-core system could improve retention of the posterior fixed partial denture if the inter-occlusion distance of the abutment tooth was shorter than 3 mm.
authors.affiliation: Department of Prosthodontics, The Affiliated Stomatologic Hospital, College of Medical Sciences, Zhejiang University, Hangzhou 310006, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Hu
authors.forename: Fu-ming
authors.initials: FM
authors.lastname: He
authors.forename: Yan-li
authors.initials: YL
authors.lastname: Yang
authors.forename: Yi-feng
authors.initials: YF
authors.lastname: Cai
mesh_terms: D000044:Dental Abutments; D003830:Denture, Partial, Fixed; D005500:Follow-Up Studies; D006801:Humans; D008963:Molar; D011176:Post and Core Technique; D016388:Tooth Loss / Q000628:therapy