title: Deviations of inorganic and organic carbon content in hypomineralised enamel.
abstract: OBJECTIVE
  The purpose of this study was to discriminate hypomineralised enamel of permanent first molars from normal enamel by means of spectroscopic methods.
  
  
  METHODS
  The present study was conducted using Multi spot Raman Fourier Transform Spectroscopy, Diffuse Reflectance Infrared Fourier Transform Spectroscopy (FTIR) and X-ray diffraction (XRD).
  
  
  RESULTS
  Raman spectroscopy indicated significantly more B-type carbonate and hydrocarbons in hypomineralised enamel diagnosed as MIH (Molar Incisor Hypomineralisation). From XRD analysis, no changes in crystallinity of the enamel apatite could be found.
  
  
  CONCLUSIONS
  Using multi spot Raman-spectroscopy, a significant molecular discrimination between normal and hypomineralised enamel could be made.
  
  
  CONCLUSIONS
  Detailed surface studies are needed in order to achieve better restorative materials, specifically designed for restoration of hypomineralised enamel, and are also needed in order to understand and predict the clinical consequences of hypomineralised enamel with the condition MIH.
authors.affiliation: Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden. Electronic address: fabian.taube@amm.gu.se.
authors.forename: F
authors.initials: F
authors.lastname: Taube
authors.affiliation: Department of Applied Physics, Chalmers University of Technology, Gothenburg, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Marczewski
authors.affiliation: Department of Pediatric Dentistry, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
authors.forename: J G
authors.initials: JG
authors.lastname: Norén
mesh_terms: D002244:Carbon / Q000032:analysis*; D003743:Dental Enamel / Q000737:chemistry* / Q000648:ultrastructure; D003744:Dental Enamel Hypoplasia / Q000378:metabolism*; D006801:Humans; D007287:Inorganic Chemicals / Q000032:analysis*; D008859:Microscopy, Polarization; D009930:Organic Chemicals / Q000032:analysis*; D011208:Powders; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D007287:Inorganic Chemicals; D009930:Organic Chemicals; D011208:Powders; D002244:Carbon
keywords: Enamel; FT-Raman; FTIR; HME; Hypomineralised; MIH; SEM; XRD