title: [Measurement and comparison of the spectral transmittance of cerinate porcelain and human enamel].
abstract: OBJECTIVE
  To measure the spectral transmittance of Cerinate porcelain veneer and enamel in different color and different thickness.
  
  
  METHODS
  Samples of Cerinate porcelain veneers were prepared in different thickness (0.50 mm, 0.75 mm, 1.00 mm) and different Vita shade (A1, A2, A3). Enamel samples in shade A2 were made with three thickness (0.50 mm, 0.75 mm, 1.00 mm). A spectrophotometer with spectra range (380-800 nm) was employed to measure the spectral transmittance.
  
  
  RESULTS
  Spectral transmittance decreased with the increasing in the thickness of specimens and decreasing in the color darkness. The transmittance of Cerinate porcelain veneer material and enamel in the same color and same thickness hadn't significant difference.
  
  
  CONCLUSIONS
  The key factor to spectral transmittance of porcelain veneer materials is veneer's thickness, and the color of the materials has also some influence on it. Cerinate porcelain veneers can properly recover the transparency of teeth.
authors.affiliation: Dept. of Prosthodontics, College of Stomatology, The Fourth Military Medical of University, Xi'an 710032, China.
authors.forename: Ji-Hua
authors.initials: JH
authors.lastname: Chen
authors.forename: Guo-Feng
authors.initials: GF
authors.lastname: Zhou
authors.forename: Zhang-Rui
authors.initials: ZR
authors.lastname: Wei
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: San-Jun
authors.initials: SJ
authors.lastname: Zhao
mesh_terms: D002516:Ceramics; D003116:Color; D003743:Dental Enamel; D003776:Dental Porcelain; D003801:Dental Veneers; D006801:Humans; D013053:Spectrophotometry
chemical_list: C085095:Cerinate; D003776:Dental Porcelain