title: [All-ceramic resin bonded fixed partial denture made of IPS hot-pressed casting porcelain restore anterior missing teeth: a three years clinical observation].
abstract: OBJECTIVE
  To clinic observation of IPS Empress2 and IPS e.max all ceramic resin bonded fixed partial dentures used in one anterior teeth lost in upper jaw or less than two anterior tooth lost in lower jaw.
  
  
  METHODS
  22 patients, 26 restorations had been made, which included 16 single-retainer all ceramic resin bonded fixed partial dentures and 10 two-retainers all ceramic resin bonded fixed partial dentures. Secondary caries of the abutments, shade in the margin of the retainers and the integrity of the restorations had been observed at 3 months, 6 months, 1 year, 2 years and 3 years after all ceramic resin bonded fixed partial dentures having been bonded.
  
  
  RESULTS
  In the 3 years of clinic observation of the anterior all ceramic resin bonded fixed partial dentures, 1 two-retainers restoration lost bond after it had been made for 3 months, a retainer of one two-retainers restoration was broken after 6 months, but they are still used after modified as one-retainer all ceramic resin bonded fixed partial dentures, 1 two-retainers restoration lost bond two year later, It was integrity and re-bonded again that was still stable. No secondary carries and no shade in margin of the retainers had been found. Their color matches with the nature teeth excellently. The success rate was 88.5%.
  
  
  CONCLUSIONS
  IPS Empress 2 and IPS e.max all ceramic resin bonded fixed partial dentures should be a good selection in one or two teeth lose in anterior jaws.
authors.affiliation: Department of Prosthodontics, Peking Univesity School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Tuan feng
authors.initials: Tf
authors.lastname: Zhou
authors.forename: Xin zhi
authors.initials: Xz
authors.lastname: Wang
authors.forename: Gui rong
authors.initials: Gr
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D002484:Cementation; D002516:Ceramics / Q000737:chemistry*; D001840:Dental Bonding / Q000379:methods; D003776:Dental Porcelain / Q000737:chemistry*; D003779:Denture Design; D016379:Denture, Partial, Fixed, Resin-Bonded; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor; D008297:Male; D008875:Middle Aged; D016388:Tooth Loss / Q000628:therapy; D055815:Young Adult
chemical_list: D003776:Dental Porcelain