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  Indian J Med Microbiol
 

Figure 24: The effect of the quality of cleaning and shaping on root-filling adaptation. Root canals were treated with either rotary files with syringe and needle irrigation or the SAF System with continuous irrigation. Before and after, micro-CT scans were used to defi ne the "percent of canal wall that was unaffected by the procedure". Obturation was performed using lateral compaction with a sealer, and a third scan was taken after obturation. The last two scans were used to define the "percent of canal wall untouched by the root filling". (a) Oval canal treated with the SAF; red: Before; blue: After instrumentation. Almost the entire wall was affected by the procedure. (b) Oval canal treated with a rotary file; red: Before; blue: After instrumentation. A high percent of the canal wall was unaffected by instrumentation. (c and d) Same canals as in "a" and "b" but after obturation. Blue: Area untouched by the root filling; yellow: Area touched by the root filling. Note the un-instrumented fin of "b", which is also likely not clean, as the sealer failed to enter this area (Blue in "d"). (e) The correlation between the two parameters: The rotary file-treated group had a higher percent of "area unaffected by cleaning and shaping" and, accordingly, had a high percent of "area untouched by the root filling". (adapted from Metzger et al. 2010)[11]

Figure 24: The effect of the quality of cleaning and shaping on root-filling adaptation. Root canals were treated with either rotary files with syringe and needle irrigation or the SAF System with continuous irrigation. Before and after, micro-CT scans were used to defi ne the et al. 2010)[11]">