title: [Experimental measurement of force exerted by palatal bars. 1].
abstract: The Authors have prepared a protocol of research to evaluate the forces of lateral expansion expressed by the palatal bar et different degrees of activation. A special instrument has been built to this purpose. The forces expressed at the different degrees of activation are then evaluated and confronted in relation to the following variables: --length of the bar;--the presence or the absence of a U loop; --the more or less bowed conformation given to the bar. It is shown how, on the same terms, the presence of the U loop reduces the force made by the bar by about the half and that the more or less bowed conformation of the bar influences the force in the same way.
authors.affiliation: Università degli Studi di Parma.
authors.forename: V
authors.initials: V
authors.lastname: Fano
authors.forename: S
authors.initials: S
authors.lastname: Pizzi
authors.forename: D
authors.initials: D
authors.lastname: Pizzoni
mesh_terms: D003799:Dental Stress Analysis; D009967:Orthodontic Appliances; D010155:Palatal Expansion Technique / Q000295:instrumentation*
vernacular_title: Misurazione sperimentale delle forze esercitate dalle barre palatali--parte I.