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A study on the transverse changes resulting from treatment with Herbst connecting rods connected to splints*

  • Tania Stakowski

Abstract

The goal of this study was to discern the nature of the transverse changes that a treatment of sequence propulsions with Herbst connecting rods with no expansion component produced. Thirty one patients treated with Herbst connecting arms9,14,15 attached to splints that had no expansion screw were selected. After this propulsion stage, treatment for these patients was continued with appliances that also had no expansion component. On study models, we recorded distances between opposite first molars and measured angular variations of these teeth in the frontal plane. We compared these figures with Moorrees12 tables that furnish natural increase in transverse distance and used the Marshall11 table to give a base measurement of natural angular modifications (“torque”). Our results showed that a sequence of propulsion treatment created enough adaptation of the shape of the upper arch to make the application of expansion mechanics unnecessary.

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Corresponding author

Address de correspondence: T. STAKOWSKI, 149, rue de Rennes, 75006 Paris. tania.stako@orange.fr

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The English version of this paper is not available; to read the French version, go to http://odf.edpsciences.org/10.1051/odf/2009006

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* The English version of this paper is not available; to read the French version, go to http://odf.edpsciences.org/10.1051/odf/2009006

Directeurs de mémoire : Claude CHABRE et Michel AMORIC / Paris VII

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A study on the transverse changes resulting from treatment with Herbst connecting rods connected to splints*

  • Tania Stakowski

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