Shaping ability of rotary or reciprocating systems for oval root canal preparation: a micro-computed tomography study

Abstract

A preparation that volumetrically increases the root canal is not necessarily associated with better cleaning. Shaping and hard-tissue debris removal depends on root canal anatomy, kinematics, number of instruments, and instrument design.

Methodology for Morphometric Analysis of Modern Human Contralateral Premolars

“…The use of micro-CT in endodontic research revolutionized the field allowing for the non-destructive comparison of pre-versus post-instrumentation data such as debris accumulation, anatomy (morphology, transportation, centering ability, SMI), changes in volume, and surface, from different types of instruments and kinematics [157][158][159][160][161][162][163].…”

Influence of activation mode and preheating on intracanal irrigant temperature

“…Root canal disinfection is crucial because endodontic disease is mainly caused by the presence of intracanal microorganisms . Given that mechanical preparation alone cannot fully reduce infection , enhancing mechanical flushing action and chemical ability of irrigants seems mandatory to increase debridement and disinfection of the root canal system .…”

Influence of voxel size on micro-CT analysis of debris after root canal preparation

“…Considering that the statistical significance is dependent on the sample variance, 35 the larger standard deviation of the results may have contributed to the statistical similarities among the analyses performed at different voxel sizes. Several studies that have evaluated debris accumulations by micro-CT have also shown a large standard deviation 2,4,7,8,11,12 or non-normal distribution of data. 5,6 Even using methods that improve the sample selection criteria, such as micro-CT analyses for tooth selection and sample randomization, 5 it is difficult to standardize the debris accumulated in each root canal after its preparation.…”

“…10 Different Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript. micro-CT acquisition resolutions are used to analyze debris accumulation, using scanning voxel sizes of 9 µm, 5,7 14 µm 8,11 , 18 µm, 6,12 and up to 20 µm. 2 The different means of image acquisition and image evaluation make it difficult to discuss results and compare different studies.…”