title: [Polarization microscopic studies of the dental enamel margin diagonal following the use of various preparation instruments and an etching gel].
abstract: The composite enamel bond considerably depends on mechanical produced surface beside the chemical conditioning. Polarization microscopic investigations at thin planes let recognize different profiles of surfaces, variations of medium etching depths and variable frequencies of enamel fractures in the area of enamel margin bevel after application of a preparing diamond cutter, a finishing diamond cutter, a wound geared tungsten carbide finisher and the combination of a preparing diamond cutter with a tungsten carbide finisher on the same conditioning with an etching gel of 37% phosphoric acid. The only application of a wound geared tungsten carbide finisher is not indicated if the enamel etch technique is used. There the combination of a preparing diamond cutter with a tungsten carbide finisher proved a success both relating to profiles of enamel bevel after acid etching, small disturbed enamel structure and as to clinical handling.
authors.forename: B
authors.initials: B
authors.lastname: Böhm
authors.forename: H
authors.initials: H
authors.lastname: Nossek
authors.forename: C
authors.initials: C
authors.lastname: Rienke
authors.forename: C
authors.initials: C
authors.lastname: Tümpfel
mesh_terms: D000134:Acid Etching, Dental; D001641:Bicuspid; D003743:Dental Enamel / Q000033:anatomy & histology* / Q000187:drug effects; D003750:Dental Fissures / Q000473:pathology; D003762:Dental Instruments; D005782:Gels; D006801:Humans; D066298:In Vitro Techniques; D008859:Microscopy, Polarization; D010756:Phosphoric Acids / Q000494:pharmacology*
chemical_list: D005782:Gels; D010756:Phosphoric Acids
vernacular_title: Polarisationsoptische Untersuchungen der Schmelzrandschrägung nach Anwendung unterschiedlicher Präparationsinstrumente und eines Atzgels.