期刊
JOURNAL OF ENDODONTICS
卷 47, 期 5, 页码 721-731出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.joen.2021.02.002
关键词
3D; canal transportation; center point; cross-sectional image; longitudinal image; removed material
资金
- Ministry of Higher Education, Science and Technology of the Republic of Slovenia, Slovenia [P30293]
This review compared and discussed transportation evaluation methods in root canal studies, revealing similarities and correlations between different methods. The canal center point distance was identified as the most suitable method for describing canal transportation.
A comparison between root canal transportation studies is nearly impossible because of nonstandardized transportation evaluation methods. The aim of the present review was to search, compare, and critically discuss transportation evaluation methods. Methods: A search of PubMed, Web of Science, Scopus, ScienceDirect, and reference lists of articles was conducted up to March 2020 using appropriate key words to identify transportation evaluation methods. The methods in the included articles were extracted, compared, and categorized. Results: Seventy-four articles using original methods were selected. All studies share 3 main steps: image acquisition, image measurements, and calculation of parameters. Images were acquired by photography, radiography, and computed tomographic imaging. Two types of measurements were used: the amount of removed material and the canal center point distance. The parameters were calculated and reported as distance or ratio. Relationships between the different transportation parameters were found and confirmed with mathematical simulation. Conclusions: Although methods were proposed as being novel, similarities between them were found, enabling the classification of the methods and identifying correlations. The canal center point distance is the most suitable for the description of canal transportation because it is comprehensible and it relates to the mathematical concept of translation. Removed material-based measurements are double the value of the canal center point distance. Ratio parameters are not suitable for reporting transportation. (J Endod 2021;47:721-731.)
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