title: [The use of modified inlay in restoration of posterior molars with large defect].
abstract: OBJECTIVE
  This study evaluated the clinical effectiveness of Co-Cr alloy inlays/onlays in the restorations of posterior teeth with large defects.
  
  
  METHODS
  96 inlays were examined in 83 patients. The interval between placement and assessment was 6 months,1 year and 2 years. Restorations still present at the time of evaluation were clinically assessed according to modified USPHS criteria. Rank sum test was used to assess the difference in each of these criteria by SPSS11.5 software.
  
  
  RESULTS
  2 inlays failed, one was due to dislocation and the other due to recurrent caries. No significant difference was observed in each of these criteria at the time of 2 years after placement. A success rate of 97.9% at 2 years was estimated.
  
  
  CONCLUSIONS
  The innovative preparation design of dovetail with adaptable pin hole or groove yielded a better retention for inlay/onlay and was proved to be practicable in the restoration of posterior teeth. However, very careful consideration of clinical operation and laboratory work must be taken for a successful restoration.
authors.affiliation: Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang 110002, Liaoning Province, China. linniecn@hotmail.com
authors.forename: Lin
authors.initials: L
authors.lastname: Wu
authors.forename: Hong-jun
authors.initials: HJ
authors.lastname: Ai
mesh_terms: D003731:Dental Caries; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain; D019232:Dental Restoration Failure; D006801:Humans; D007284:Inlays / Q000379:methods*; D008963:Molar; D014070:Tooth
chemical_list: D003776:Dental Porcelain