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dc.contributor.author | Martín Micó, Milagros | es |
dc.contributor.author | Forner Navarro, Leopoldo | es |
dc.contributor.author | Almenar García, Amelia del Pilar | es |
dc.date.accessioned | 2017-09-06T10:53:48Z | |
dc.date.available | 2017-09-06T10:53:48Z | |
dc.date.issued | 2009 | es |
dc.identifier.citation | Martín Micó, Milagros ; Forner Navarro, Leopoldo ; Almenar García, Amelia del Pilar. Modification of the working length after rotary instrumentation. : a comparative study of four systems. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 14 3 2009: 10- | es |
dc.identifier.uri | http://hdl.handle.net/10550/60562 | |
dc.description.abstract | Objective: To determine variation in post-instrumentation working length and root area in the following rotary systems: ProTaper, RaCe, Mtwo and K3. Study design: A sample of 40 resin blocks with double curvature (at 14 and 16 mm) and a 33º angle was used. Working length was verified with a digital measure using a number 10 K file. The specific sequence for each rotary system was followed. The canal was measured between each file, and the variation noted to determine which file showed the greatest variation within a same system and the different systems were compared. 1.5 X pre and post-instrumentation microscopic photographs were taken and measurements of the area were taken with an image analysis programme. Results: The area was found to increase by the following amounts: ProTaper: 21.85 mm²; Mtwo: 20.16 mm²; K3: 17.24 mm² and RaCe: 16.09 mm² The differences in variation of the working length were: ProTaper: 0.81 mm; Mtwo: 1.07 mm; K3: 0.31 mm and RaCe: 0.81 mm Conclusions: The values for the variation in working length are clinically not very significant. All the rotary systems analysed showed a tendency to straighten the canal and eliminate the apical curvature, and the ProTaper system was found to produce the greatest modification to the canal area and structure. | es |
dc.title | Modification of the working length after rotary instrumentation. : a comparative study of four systems | es |
dc.type | journal article | es_ES |
dc.subject.unesco | UNESCO::CIENCIAS MÉDICAS | es |
dc.identifier.doi | es | |
dc.type.hasVersion | VoR | es_ES |