Impact of Contracted Endodontic Access Cavity on Shaping Ability of Hyflex Electrical Discharge Machining Single File Using Cone Beam Computed Tomography: An Ex Vivo Study

Open Access Macedonian Journal of Medical Sciences

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Field Value
 
Title Impact of Contracted Endodontic Access Cavity on Shaping Ability of Hyflex Electrical Discharge Machining Single File Using Cone Beam Computed Tomography: An Ex Vivo Study
 
Creator Bayoumi, Ahmed
Magdy Mohamed Aly
Hassan, Reham
 
Subject HyFlex electrical discharge machining
Cone-beam computed tomography
Traditional access
Contracted access
Canal transportation
Centering ability
Control memory
Nickel-titanium instruments
 
Description AIM: The aim of the study was to evaluate and compare the effect of different access cavity designs, using cone-beam computed tomography (CBCT), on root canal transportation, and centralization performed on two rooted maxillary premolars.


METHODS: Twenty maxillary premolars were randomly divided into two groups. In Group 1, traditional endodontic cavities (TECs) were prepared. In Group 2, contracted endodontic cavities (CECs) were prepared. Mechanical preparation was done by HyFlex electrical discharge machining (EDM) single file in both groups. CBCT imaging was performed pre- and post-root canal preparation for calculations of root canal transportation and centering ability.


RESULTS: Data were analyzed using Mann–Whitney U test and Kruskal–Wallis test. For transportation, teeth with CECs showed the statistically significantly highest median amount of transportation, while as for centering ability, results showed no significant difference between both groups.

CONCLUSION: Under the conditions of this study, HyFlex EDM prepared canals with different access cavity designs without significant shaping errors. TEC showed less transportation than CEC, while both TEC and CEC had no effect on the file centering ability.
 
Publisher Scientific Foundation SPIROSKI, Skopje, Republic of Macedonia
 
Date 2021-10-10
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://oamjms.eu/index.php/mjms/article/view/6623
10.3889/oamjms.2021.6623
 
Source Open Access Macedonian Journal of Medical Sciences; Vol. 9 No. D (2021): D - Dental Sciences; 221-228
1857-9655
 
Language eng
 
Relation https://oamjms.eu/index.php/mjms/article/view/6623/6173
 
Rights Copyright (c) 2021 Ahmed Bayoumi, Magdy Mohamed Aly, Reham Hassan (Author)
http://creativecommons.org/licenses/by-nc/4.0
 

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