Exploració per tema "Ortodòncia"

Ara es mostren els items 1-12 de 12

    • Effect of temperature on the orthodontic clinical applications of NiTi closed-coil springs 

      Espinar, Eduardo; Llamas Carreras, Jose Maria; Barrera Mora, Jose Maria; Ábalos, C.; Gil Mur, Francisco Javier (2013-07-01)
      Article
      Accés restringit per política de l'editorial
      NiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the austenitic ...

    • Estudi de sensibilitat dels components d'un disjuntor ortodòntic mitjançant simulacions 

      Delgado Guiu, Sergi (Universitat Politècnica de Catalunya, 2016-01)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Un disjuntor ortodòntic, també conegut com expansor ortodòntic, és un mecanisme utilitzat actualment en el camp de la medicina bucal. Es basa en una nova tecnologia mèdica que consisteix en implantar microcargols en el ...

    • Improvement in adhesion of the brackets to the tooth by sandblasting treatment 

      Espinar, Eduardo; Barrera, J.; Llamas, José María; Solano, E.; Rodríguez Rius, Daniel; Gil Mur, Francisco Javier (Springer, 2011)
      Article
      Accés restringit per política de l'editorial
      In oral orthodontic treatments, achievement of a good adhesion between brackets and teeth surfaces is essential. One way to increase adhesion is to apply a surface treatment of teeth facing surfaces through the ...

    • In vitro corrosion behavior of lingual orthodontic archwires 

      Suárez, Carlos; Vilar, Teresa; Sevilla Sánchez, Pablo; Gil Mur, Francisco Javier (2011)
      Article
      Accés obert
      To investigate the in vitro electrochemical corrosive behavior of archwires used in lingual orthodontics and the effects on the phase transition temperatures. Materials and Methods. Six different types of archwires of ...

    • Influence of Soft Drinks with Low pH on Different Ni-Ti Orthodontic Archwire Surface Patterns 

      Ábalos, C.; Paúl, A.; Mendoza, A.; Solano, E.; Palazon, C.; Gil Mur, Francisco Javier (2013-03)
      Article
      Accés obert
      The aim of this study was to determine the influence of soft drinks on the surface of Ni-Ti archwires and their corrosion behavior. Archwires with different patterns (smooth, scratch, dimple, and crack) were selected and ...

    • Influence of the microstructure on electrochemical corrosion and nickel release in NiTi orthodontic archwires 

      Briceño, J.; Romeu, A.; Espinar, Eduardo; Llamas Carreras, Jose Maria; Gil Mur, Francisco Javier (2013)
      Article
      Accés restringit per política de l'editorial
      The aim of this work was to determine the influence of the present phases and the chemical composition on the corrosion behavior and the nickel ion release of the NiTi orthodontic archwires. Eight Ni–Ti archwires from six ...

    • Influence of topographical feature on the fluoride corrosión of Ni-Ti orthodontic archwires 

      Abalos, C.; Paúl, A.; Mendoza, A.; Solano, E.; Gil Mur, Francisco Javier (Springer, 2011)
      Article
      Accés restringit per política de l'editorial
      Different manufacturing processes of Ni–Ti archwires respond differently to corrosion due to the surface conditions involved. In this study, several topographical features and their influence upon fluoride corrosion ...

    • Mechanical properties of a new thermoplastic polymer orthodontic archwire 

      Varela, Juan Carlos; Velo, Marcos; Espinar Escalona, Eduardo; Llamas Carreras, Jose Maria; Rupérez de Gracia, Elisa; Manero Planella, José María; Gil Mur, Francisco Javier (2014-09-01)
      Article
      Accés restringit per política de l'editorial
      A new thermoplastic polymer for orthodontic applications was obtained and extruded into wires with round and rectangular cross sections. We evaluated the potential of new aesthetic archwire: tensile, three point bending, ...

    • New Ni-free superelastic alloy for orthodontic applications 

      Arciniegas Angarita, Milena Patricia; Manero Planella, José María; Espinar, Eduardo; Llamas Carreras, Jose Maria; Barrera Mora, Jose Maria; Gil Mur, Francisco Javier (2013-08-01)
      Article
      Accés restringit per política de l'editorial
      A potential new Ni-free Ti alloy for biomedical applications was assessed in order to investigate the superelastic behavior, corrosion resistance and the biocompatibility. The alloy studied was Ti19.1Nb8.8Zr. The chemical ...

    • Reduction of Ni release and improvement of the friction behaviour of NiTi orthodontic archwires by oxidation treatments 

      Espinar, Eduardo; Llamas, José María; Michiardi, Alexandra; Ginebra Molins, Maria Pau; Gil Mur, Francisco Javier (2011-03-25)
      Article
      Accés restringit per política de l'editorial
      This work studies NiTi orthodontic archwires that have been treated using a new oxidation treatment for obtaining Ni-free surfaces. The titanium oxide on the surface significantly improves corrosion resistance and decreases ...

    • Relationship between the surface defects and the manufacturing process of orthodontic NiTi archwires 

      Paúl, A.; Ábalos, C.; Mendoza, A.; Gil Mur, Francisco Javier; Solano, E. (2011)
      Article
      Accés restringit per política de l'editorial
      The surface defects and roughness of orthodontic Ni–Ti archwires are related to the manufacturing and surface finishing processes employed. On grouping archwires according to their surface characteristics instead the ...

    • Variation of the superelastic properties and nickel release from original and reused NiTi orthodontic archwiresOriginal 

      Gil Mur, Francisco Javier; Espinar, Eduardo; Llamas, José María; Manero Planella, José María; Ginebra Molins, Maria Pau (2012)
      Article
      Accés restringit per política de l'editorial
      Reuse of NiTi orthodontic wires has become increasingly common in dental clinics. For sterilization and recovery of the original superelastic properties of the wires, a heat treatment is usually performed between 500 and ...