| ORIGINAL ARTICLE |
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| Year : 2020 | Volume
: 23
| Issue : 3 | Page : 309-313 |
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Synchrotron radiation-based micro-computed tomographic analysis of dentinal microcracks using rotary and reciprocating file systems: An in vitro study
Harikumar Vemisetty1, N Tulasi Priya2, Balwant Singh3, Pooja Yenubary2, Ashish Kumar Agarwal3, Jayaprada Reddy Surakanti1
1 Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
2 Department of Conservative Dentistry and Endodontics, Government Dental College, Hyderabad, Telangana, India
3 RRCAT, Indore, Madhya Pradesh, India
Correspondence Address:
Dr. N Tulasi Priya
Department of Conservative Dentistry and Endodontics, Govt. Dental College, Hyderabad, Telangana Dist
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/JCD.JCD_465_20
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Background: Advances in both X-ray sources and X-ray optics have dramatically improved the feasibility of these techniques in various fields.
Aims: We aimed to evaluate the frequency of dentinal microcracks observed after root canal preparation with ProTaper Gold (PTG), Hyflex electrodischarge machining (HEDM), Reciproc (RPC), and WaveOne Gold (WOG) using synchrotron radiation-based micro-computed tomographic (SR-μCT) analysis.
Subjects and Methods: Forty mandibular molars were assigned to 4 experimental groups (n = 10) according to the file system used for the root canal preparation: Group 1: PTG (25/0.08), Group 2: HEDM (25/0.08), Group 3: RPC (25/0.08), and Group 4: WOG (25/0.07). The specimens were scanned on SR-μCT system before and after root canal preparation. The pre- and postoperative cross-sectional images (N = 183,200) of the mesial roots were screened to identify the presence of dentinal microcracks. The number of microcracks was determined as a percentage for each group.
Statistical Analysis: There was no necessity of statistical analysis in the present study. The number of microcracks was determined as a percentage for each group.
Results: Among the four file systems tested, HEDM (0.9%) has shown a fewer number of new dentinal microcracks.
Conclusions: SR-μCT can be used as a reliable diagnostic tool for further implications.
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