Zoran Čarija
University of Rijeka
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Publication
Featured researches published by Zoran Čarija.
Croatian Medical Journal | 2012
Damir Šnjarić; Zoran Čarija; Alen Braut; Adelaida Halaji; Maja Kovačević; Davor Kuiš
Aim To analyze the influence of the needle type, insertion depth, and irrigant flow rate on irrigant flow pattern, flow velocity, and apical pressure by ex-vivo based endodontic irrigation computational fluid dynamics (CFD) analysis. Methods Human upper canine root canal was prepared using rotary files. Contrast fluid was introduced in the root canal and scanned by computed tomography (CT) providing a three-dimensional object that was exported to the computer-assisted design (CAD) software. Two probe points were established in the apical portion of the root canal model for flow velocity and pressure measurement. Three different CAD models of 27G irrigation needles (closed-end side-vented, notched open-end, and bevel open-end) were created and placed at 25, 50, 75, and 95% of the working length (WL). Flow rates of 0.05, 0.1, 0.2, 0.3, and 0.4 mL/s were simulated. A total of 60 irrigation simulations were performed by CFD fluid flow solver. Results Closed-end side-vented needle required insertion depth closer to WL, regarding efficient irrigant replacement, compared to open-end irrigation needle types, which besides increased velocity produced increased irrigant apical pressure. For all irrigation needle types and needle insertion depths, the increase of flow rate was followed by an increased irrigant apical pressure. Conclusions The human root canal shape obtained by CT is applicable in the CFD analysis of endodontic irrigation. All the analyzed values –irrigant flow pattern, velocity, and pressure – were influenced by irrigation needle type, as well as needle insertion depth and irrigant flow rate.
International Journal of Refrigeration-revue Internationale Du Froid | 2014
Zoran Čarija; Bernard Franković; Marko Perčić; Marko Čavrak
Strojarstvo : časopis za teoriju i praksu u strojarstvu | 2008
Zoran Čarija; Zoran Mrša; Sanjin Fućak
Engineering review | 2012
Zoran Čarija; Lado Kranjčević; Vjekoslav Banić; Marko Čavrak
4th International Congress of Croatian Society of Mechanics | 2003
Zoran Čarija; Zoran Mrša
Strojarstvo | 2008
Zoran Čarija; Zoran Mrša; Sanjin Fućak
5th International Congress of Croatian Society of Mechanics | 2006
Zoran Čarija; Zoran Mrša; Luka Dragović
Archive | 2000
Vladimir Medica; Zoran Čarija; Bernard Franković
Engineering review | 2014
Zoran Čarija; Emil Marušić; Zdenko Novak; Sanjin Fućak
Proceedings CADAM 2012 | 2013
Zdenko Novak; Zoran Čarija