A method for three-dimensional analysis of the root canal system, before and after mechanical instrumentation, using X-ray Micro-computed tomography.
Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning › fagfællebedømt
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A method for three-dimensional analysis of the root canal system, before and after mechanical instrumentation, using X-ray Micro-computed tomography. / Markvart, Merete; Bjørndal, Lars; Larsen, Per; Dalstra, Michel; Kreiborg, Sven.
2007. Abstract fra The 7th IFEA congress, Vancouver BC, Canada, 2007., Vancouver, Canada.Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning › fagfællebedømt
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T1 - A method for three-dimensional analysis of the root canal system, before and after mechanical instrumentation, using X-ray Micro-computed tomography.
AU - Markvart, Merete
AU - Bjørndal, Lars
AU - Larsen, Per
AU - Dalstra, Michel
AU - Kreiborg, Sven
PY - 2007
Y1 - 2007
N2 - Clinical studies have shown a connection between the reduction of micro-organisms in the root canal and the degree of apical enlargement. The aim of this study was to create a non-invasive 3D model for monitoring the apical enlargement in molar teeth before and after mechanical instrumentation. Extracted molar teeth were embedded in resin and kept moisturized. Each root canal was instrumented with NiTi instruments to #40. The teeth were scanned before and after instrumentation, using a microCT40 micro-tomography (SCANCO Medical AG, Bassersdorf, Switzerland). The reconstructed slices were imported into Analyze7.0. In-house software, Landmarker, was applied to calculate the distance between two equal points on the superimposed 3D models. Fig. 1 exemplifies the results of the reconstructed root canals before and after instrumentation. In Fig. 2 the colour scale indicates increasing dentin removal during instrumentation. In conclusion, the method is useful for quantitative analysis of apical enlargement during root canal instrumentation.
AB - Clinical studies have shown a connection between the reduction of micro-organisms in the root canal and the degree of apical enlargement. The aim of this study was to create a non-invasive 3D model for monitoring the apical enlargement in molar teeth before and after mechanical instrumentation. Extracted molar teeth were embedded in resin and kept moisturized. Each root canal was instrumented with NiTi instruments to #40. The teeth were scanned before and after instrumentation, using a microCT40 micro-tomography (SCANCO Medical AG, Bassersdorf, Switzerland). The reconstructed slices were imported into Analyze7.0. In-house software, Landmarker, was applied to calculate the distance between two equal points on the superimposed 3D models. Fig. 1 exemplifies the results of the reconstructed root canals before and after instrumentation. In Fig. 2 the colour scale indicates increasing dentin removal during instrumentation. In conclusion, the method is useful for quantitative analysis of apical enlargement during root canal instrumentation.
M3 - Conference abstract for conference
Y2 - 22 August 2007 through 25 August 2007
ER -
ID: 174591841