Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis
The aim of this study was to evaluate the contact pressure distribution of two different nickel-titanium (NiTi) endodontic rotary instruments against the root canal walls and to virtually predict their centering ability during shaping with finite element analysis (FEA). Resin blocks simulating root...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/8/2981 |
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| author | Giorgia Carpegna Mario Alovisi Davide Salvatore Paolino Andrea Marchetti Umberto Gibello Nicola Scotti Damiano Pasqualini Alessandro Scattina Giorgio Chiandussi Elio Berutti |
| author_facet | Giorgia Carpegna Mario Alovisi Davide Salvatore Paolino Andrea Marchetti Umberto Gibello Nicola Scotti Damiano Pasqualini Alessandro Scattina Giorgio Chiandussi Elio Berutti |
| author_sort | Giorgia Carpegna |
| collection | DOAJ |
| description | The aim of this study was to evaluate the contact pressure distribution of two different nickel-titanium (NiTi) endodontic rotary instruments against the root canal walls and to virtually predict their centering ability during shaping with finite element analysis (FEA). Resin blocks simulating root canals were used. One was shaped with ProGlider and ProTaper Next (PTN) X1-X2 and one with ScoutRace and BioRace (BR) 1, 2 and 3. Both resin blocks were virtually replicated with computer-aided design (CAD) software. The endodontic instruments ProTaper Next (PTN) X2 and BioRace BR3 were also replicated with CAD. The NiTi instruments and the shaped blocks geometries were discretized and exported for FEA. The instrument rotation in the root canals was simulated. The finite element simulation was performed by applying an insertion and extraction force of 2.5 N with a constant rotational speed (300 rpm). To highlight possible differences between pressure distributions against the root canal portions outside and inside the canal curvature, the parameter <i>Var</i> was originally defined. <i>Var</i> values were systematically lower for PTN X2, revealing a better centering ability. FEA proved effective for the virtual prediction of the centering ability of NiTi instruments during an early design phase without the use of prototypes. |
| first_indexed | 2024-03-10T20:15:11Z |
| format | Article |
| id | doaj.art-2b32386637d94f10a263860bca832703 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T20:15:11Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-2b32386637d94f10a263860bca8327032023-11-19T22:37:05ZengMDPI AGApplied Sciences2076-34172020-04-01108298110.3390/app10082981Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element AnalysisGiorgia Carpegna0Mario Alovisi1Davide Salvatore Paolino2Andrea Marchetti3Umberto Gibello4Nicola Scotti5Damiano Pasqualini6Alessandro Scattina7Giorgio Chiandussi8Elio Berutti9Department of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyDepartment of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItayDepartment of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyDepartment of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyDepartment of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyDepartment of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItayDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItayDepartment of Surgical Science, Dental School Department of Endodontic and Restorative Dentistry, University of Torino, 10126 Torino, ItalyThe aim of this study was to evaluate the contact pressure distribution of two different nickel-titanium (NiTi) endodontic rotary instruments against the root canal walls and to virtually predict their centering ability during shaping with finite element analysis (FEA). Resin blocks simulating root canals were used. One was shaped with ProGlider and ProTaper Next (PTN) X1-X2 and one with ScoutRace and BioRace (BR) 1, 2 and 3. Both resin blocks were virtually replicated with computer-aided design (CAD) software. The endodontic instruments ProTaper Next (PTN) X2 and BioRace BR3 were also replicated with CAD. The NiTi instruments and the shaped blocks geometries were discretized and exported for FEA. The instrument rotation in the root canals was simulated. The finite element simulation was performed by applying an insertion and extraction force of 2.5 N with a constant rotational speed (300 rpm). To highlight possible differences between pressure distributions against the root canal portions outside and inside the canal curvature, the parameter <i>Var</i> was originally defined. <i>Var</i> values were systematically lower for PTN X2, revealing a better centering ability. FEA proved effective for the virtual prediction of the centering ability of NiTi instruments during an early design phase without the use of prototypes.https://www.mdpi.com/2076-3417/10/8/2981CADendodonticsengineeringfinite element analysis (FEA)computer simulationdental informatics/bioinformatics |
| spellingShingle | Giorgia Carpegna Mario Alovisi Davide Salvatore Paolino Andrea Marchetti Umberto Gibello Nicola Scotti Damiano Pasqualini Alessandro Scattina Giorgio Chiandussi Elio Berutti Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis Applied Sciences CAD endodontics engineering finite element analysis (FEA) computer simulation dental informatics/bioinformatics |
| title | Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis |
| title_full | Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis |
| title_fullStr | Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis |
| title_full_unstemmed | Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis |
| title_short | Evaluation of Pressure Distribution against Root Canal Walls of NiTi Rotary Instruments by Finite Element Analysis |
| title_sort | evaluation of pressure distribution against root canal walls of niti rotary instruments by finite element analysis |
| topic | CAD endodontics engineering finite element analysis (FEA) computer simulation dental informatics/bioinformatics |
| url | https://www.mdpi.com/2076-3417/10/8/2981 |
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