title: [A short term clinical evaluation of IPS e.max Press all-ceramic crowns].
abstract: OBJECTIVE
  The aim of this study was to evaluate the clinical effect of IPS e.max Press crowns.
  
  
  METHODS
  A total of 127 IPS e.max Press crowns was placed in forty-one patients from 2007 to 2009. The crowns were evaluated with a modified USPHS criteria for color match, marginal discoloration, fracture, secondary caries, marginal adaptation and gingival health for a period of 12 to 42 months, with a mean of 28 months after insertion. A,B,C and D ratings were assigned.
  
  
  RESULTS
  94.49% of the crowns were rated as A and 5.51% rated as B for color match and marginal adaptation. 1.57% of the crowns was detected with marginal discoloration and one crown(0.79%) was detected with veneer chipping. No secondary caries was detected, and 93.70% of the crowns were rated as A, 4.72% rated as B and 1.58% rated as C for gingival health.
  
  
  CONCLUSIONS
  IPS e.max Press crowns exhibit excellent clinical performance over a mean evaluation period of 28 months.
authors.affiliation: Department of Prosthodontics, Shanghai Xuhui Dental Diseases Center. Shanghai 200032,China. venson_wu@163.com
authors.forename: Wen-sheng
authors.initials: WS
authors.lastname: Wu
authors.forename: Pei-cheng
authors.initials: PC
authors.lastname: Xu
authors.forename: Man-li
authors.initials: ML
authors.lastname: Zhou
mesh_terms: D002516:Ceramics; D003116:Color; D003442:Crowns; D003776:Dental Porcelain; D006801:Humans
chemical_list: C508050:IPS e.max Press; D003776:Dental Porcelain