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Effectiveness of Parameters in Quantifying Root Canal Morphology Change after Instrumentation with the Aid of a Microcomputed Tomography
Joint Authors
Hegedűs, Csaba
Juhasz, Alexander
Marton, Ildiko
Orhan, Kaan
Dobó-Nagy, Csaba
Benyó, Balázs
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-02
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The objective of this study was to analyse the effectiveness of some parameters which characterise the change in morphology in human root canals subjected to ProTaper rotary enlargement with the help of an X-ray microfocus computed tomography (MCT) and to introduce a novel parameter that is effective in quantifying changes in root canal morphology.
Ten each straight and curved root canals with mature apices chosen from extracted human upper incisor and canine teeth were scanned with MCT before and after canal shaping using ProTaper rotary instruments in order to facilitate three-dimensional digital reconstruction and quantitative gauging of relevant instrumental parameters and changes therein (surface area and volume).
Root canal geometry change and the effectiveness of shaping were quantified with Structure Model Index change (ΔSMI) and surface area change to volume change ratio (ΔSA/ΔV).
These two parameters were also tested on simulated canals.
Postinstrumentation cross-sectional changes were also analysed, but only on the plastic blocks.
Statistical analysis of parameters was carried out to verify the significance of results.
Analysis of cross-sectional shape of postinstrumented resin simulated canals showed statistically significant decrease in Form Factor (p<0.05) and statistically significant increase in Eccentricity (p<0.005).
ΔSMI did not show significant difference between straight and curved canals.
SMI values showed bidirectional change during root enlargement which questions the reliability of this metric in analysing instrumentation.
Statistically significant (p<0.005) deviations in ΔSA/ΔV were quantified as 1.92 and 3.22 for straight and curved human canals, respectively.
Instrumentation-induced canal geometry change was determined to be more pronounced in curved canals using the novel parameter ΔSA/ΔV.
This has been proven as being a statistically accurate and reproducible parameter for quantitative characterisation of root canal geometry change and differentiation of preparational efficacy for both straight and curved root canals.
American Psychological Association (APA)
Juhasz, Alexander& Hegedűs, Csaba& Marton, Ildiko& Benyó, Balázs& Orhan, Kaan& Dobó-Nagy, Csaba. 2019. Effectiveness of Parameters in Quantifying Root Canal Morphology Change after Instrumentation with the Aid of a Microcomputed Tomography. BioMed Research International،Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1128819
Modern Language Association (MLA)
Juhasz, Alexander…[et al.]. Effectiveness of Parameters in Quantifying Root Canal Morphology Change after Instrumentation with the Aid of a Microcomputed Tomography. BioMed Research International No. 2019 (2019), pp.1-6.
https://search.emarefa.net/detail/BIM-1128819
American Medical Association (AMA)
Juhasz, Alexander& Hegedűs, Csaba& Marton, Ildiko& Benyó, Balázs& Orhan, Kaan& Dobó-Nagy, Csaba. Effectiveness of Parameters in Quantifying Root Canal Morphology Change after Instrumentation with the Aid of a Microcomputed Tomography. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1128819
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128819