title: [Importance of blackening of films and conditions of assessment of films for diagnostic decision of X-rays of teeth, the tooth supporting apparatus and adjacent structures of the jaw].
abstract: The influence of blackening of films and conditions of assessment of films for diagnostic decisions had been examined. Various pictures of the Periodontitis apikalis chronica at x-ray pictures had been chosen the subject of examination. It should be ascertained by means of the ROS concept to what extent variations of the above-mentioned parameters will result in false diagnoses. The most favourable result is gained with film blackening of 1.2 SE and a lightness of the film equipment of 12,000 Lx. A reduced lightness of the equipment will reduce the quality of diagnostics in essential manner. Optimum conditions for evaluation of the film are given for pictures over- and under-exposed.
authors.forename: I
authors.initials: I
authors.lastname: Winkelmann
authors.forename: G A
authors.initials: GA
authors.lastname: Brandt
authors.forename: U
authors.initials: U
authors.lastname: Rother
mesh_terms: D006801:Humans; D007568:Jaw / Q000000981:diagnostic imaging; D010519:Periodontium / Q000000981:diagnostic imaging; D011861:Radiography, Dental / Q000379:methods*; D014070:Tooth / Q000000981:diagnostic imaging; D014962:X-Ray Film
vernacular_title: Die Bedeutung der Filmschwärzung und Filmbetrachtungsbedingungen für die diagnostische Entscheidungsleistung bei Röntgenaufnahmen der Zähne, des Zahnhalteapparates und der angrenzenden Kieferstrukturen.