Canal transportation caused by one single-file and two multiple-file rotary systems: A comparative study using cone-beam computed tomography

ConclusionNo significant difference exists among different rotary systems in the amount of canal transportation caused in the middle and apical third of the mesio-buccal canal in mandibular first molars. Although all rotary files caused some degrees of canal transportation, the rotary single-file instrument caused significantly greater canal transportation than the multiple-file sequences in the coronal third.
Source: Dental Technology Blog - Category: Dentistry Source Type: news