title: Five-year evaluation of posterior all-ceramic three-unit (In-Ceram) FPDs.
abstract: OBJECTIVE
  The purpose of this study was to investigate whether the properties of the In-Ceram material are adequate for use in posterior three-unit fixed partial dentures (FPD) and to evaluate the clinical method regarding preparation technique, design, and choice of cement.
  
  
  METHODS
  Eighteen patients were treated with a total of 20 posterior three-unit FPDs according to the In-Ceram technique. The FPDs were constructed with bilateral support and one pontic and were all replacing one premolar or a molar (11 replacing premolars and 9 replacing molars). They were evaluated 6 months after delivery and then once yearly.
  
  
  RESULTS
  Eighteen of the 20 FPDs (90%) showed no defects at any of the follow-up examinations and were functioning well after 5 years. No caries or signs of gingivitis or periodontitis exceeding those found in the rest of the dentition were registered.
  
  
  CONCLUSIONS
  The In-Ceram technique is, in a 5-year perspective and adopted for three-unit FPDs, an acceptable treatment alternative. Further studies must, however, be performed before the material can be recommended for more extensive restorations than the FPDs included in this study.
authors.affiliation: Department of Prosthetic Dentistry, Malmö University, Carl Gustafs väg 34, SE-214 21 Malmö, Sweden. per.vult@od.mah.se
authors.forename: P
authors.initials: P
authors.lastname: Vult von Steyern
authors.forename: O
authors.initials: O
authors.lastname: Jönsson
authors.forename: K
authors.initials: K
authors.lastname: Nilner
mesh_terms: D000328:Adult; D000368:Aged; D000537:Aluminum Oxide; D001641:Bicuspid; D002484:Cementation; D003776:Dental Porcelain; D019232:Dental Restoration Failure; D003779:Denture Design; D003830:Denture, Partial, Fixed; D006801:Humans; D008137:Longitudinal Studies; D008875:Middle Aged; D008963:Molar
chemical_list: D003776:Dental Porcelain; C070870:In-Ceram; D000537:Aluminum Oxide