Objective: Computational fluid dynamic analysis (CFD) is claimed to be a reliable tool for analysing the fluid flow and the generated apical pressures in the simulated root canal. The current study aimed to analyse the apical pressures in extracted teeth with single and joining canals.
Methods: Forty-six freshly extracted teeth were collected for the present study. The power was set at 95%, with an effect size of 0.55 (1-β=95%, α=0.05). Once the root canal anatomy was confirmed with cone-beam computed tomography (CBCT), they were divided into two groups: group I: mandibular second premolars with Vertucci type-I (n=23), and group II: maxillary second premolars with Vertucci type-II (n=23). The instrumentation of the specimens was carried out to a 0.04-taper using rotary instruments. A post-instrumentation CBCT was obtained, and computer-aided design models were obtained. The CFD simulations were then con- ducted with simulated 30-gauge side vented needles at 25, 50, and 75% short of the working length (WL).
Results: Group I recorded significantly (p<0.05) higher apical pressures at needle positions 25% short of the WL. However, no significant differences were elicited in the groups at other needle positions.
Conclusion: Single canal specimens recorded higher apical pressures at needle positions 25% short of the WL. However, no differences were elicited between single and joining canals at higher needle positions.
{"title":"Assessment of Apical Pressures in Single and Joining Canals - An Ex Vivo Study Based on Computational Fluid Dynamic Analysis.","authors":"Sahil Choudhari, Kavalipurapu Venkata Teja, Sindhu Ramesh, Raja Kumar, Gianrico Spagnuolo","doi":"10.14744/eej.2023.57060","DOIUrl":"10.14744/eej.2023.57060","url":null,"abstract":"<p><strong>Objective: </strong>Computational fluid dynamic analysis (CFD) is claimed to be a reliable tool for analysing the fluid flow and the generated apical pressures in the simulated root canal. The current study aimed to analyse the apical pressures in extracted teeth with single and joining canals.</p><p><strong>Methods: </strong>Forty-six freshly extracted teeth were collected for the present study. The power was set at 95%, with an effect size of 0.55 (1-β=95%, α=0.05). Once the root canal anatomy was confirmed with cone-beam computed tomography (CBCT), they were divided into two groups: group I: mandibular second premolars with Vertucci type-I (n=23), and group II: maxillary second premolars with Vertucci type-II (n=23). The instrumentation of the specimens was carried out to a 0.04-taper using rotary instruments. A post-instrumentation CBCT was obtained, and computer-aided design models were obtained. The CFD simulations were then con- ducted with simulated 30-gauge side vented needles at 25, 50, and 75% short of the working length (WL).</p><p><strong>Results: </strong>Group I recorded significantly (p<0.05) higher apical pressures at needle positions 25% short of the WL. However, no significant differences were elicited in the groups at other needle positions.</p><p><strong>Conclusion: </strong>Single canal specimens recorded higher apical pressures at needle positions 25% short of the WL. However, no differences were elicited between single and joining canals at higher needle positions.</p>","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"10 1","pages":"89-94"},"PeriodicalIF":1.8,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10777085/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67323592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.134090
Michael Wang
{"title":"A measurement model for assessing the impact of the COVID-19 pandemic on supply chains","authors":"Michael Wang","doi":"10.1504/ijasm.2023.134090","DOIUrl":"https://doi.org/10.1504/ijasm.2023.134090","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136209385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.10059291
Happiness Sunday Akam, Eko Hodo Anna, Monica Peter Lebo, Samuel Etim Ndem, Ekpenyong Bassey Obo, Charles Effiong, Alfred Jalagbeyiwa MacLean Edama, Joseph Akam Mpuon
{"title":"Impact of agile business transformation dynamics on supply chain performance of manufacturing firms","authors":"Happiness Sunday Akam, Eko Hodo Anna, Monica Peter Lebo, Samuel Etim Ndem, Ekpenyong Bassey Obo, Charles Effiong, Alfred Jalagbeyiwa MacLean Edama, Joseph Akam Mpuon","doi":"10.1504/ijasm.2023.10059291","DOIUrl":"https://doi.org/10.1504/ijasm.2023.10059291","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135600730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.10058245
Michael Wang
{"title":"A measurement model for assessing the impact of the COVID-19 pandemic on supply chains","authors":"Michael Wang","doi":"10.1504/ijasm.2023.10058245","DOIUrl":"https://doi.org/10.1504/ijasm.2023.10058245","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135948895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.10059205
Rui Gonçalves, Renato Lopes Da Costa, Álvaro Dias, Francisco Simões, Carlos Jerónimo, Leandro Pereira
{"title":"Project virtual teams: systematic literature review","authors":"Rui Gonçalves, Renato Lopes Da Costa, Álvaro Dias, Francisco Simões, Carlos Jerónimo, Leandro Pereira","doi":"10.1504/ijasm.2023.10059205","DOIUrl":"https://doi.org/10.1504/ijasm.2023.10059205","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135502437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.10059435
Guilherme F. Frederico, Ferry Jie, Michael Wang
{"title":"Measuring supply chain agility during the COVID-19 pandemic: empirical evidence from the firms in UAE","authors":"Guilherme F. Frederico, Ferry Jie, Michael Wang","doi":"10.1504/ijasm.2023.10059435","DOIUrl":"https://doi.org/10.1504/ijasm.2023.10059435","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135799949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.134068
Mark Wever, Niall O', N.A. Leary, Munir Shah, Nel Wognum, George Onofrei
{"title":"Towards a transdisciplinary framework for systemic risk detection","authors":"Mark Wever, Niall O', N.A. Leary, Munir Shah, Nel Wognum, George Onofrei","doi":"10.1504/ijasm.2023.134068","DOIUrl":"https://doi.org/10.1504/ijasm.2023.134068","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"538 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136209404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.10059992
Sergio Materi, Paolo Renna
{"title":"Peak power policies in job shop manufacturing systems","authors":"Sergio Materi, Paolo Renna","doi":"10.1504/ijasm.2023.10059992","DOIUrl":"https://doi.org/10.1504/ijasm.2023.10059992","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135106762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.134062
Hotlan Siagian, Zeplin Jiwa Husada Tarigan, Sautma Roni Basana, Ferry Jie
{"title":"The impact of top management commitment on green manufacturing, supplier integration, and customer integration in improving operational performance","authors":"Hotlan Siagian, Zeplin Jiwa Husada Tarigan, Sautma Roni Basana, Ferry Jie","doi":"10.1504/ijasm.2023.134062","DOIUrl":"https://doi.org/10.1504/ijasm.2023.134062","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136258021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1504/ijasm.2023.10060265
Claudia Aparecida De Mattos, Lalesca Lopes Bego
{"title":"Interplay between agile manufacturing and the Internet of Things","authors":"Claudia Aparecida De Mattos, Lalesca Lopes Bego","doi":"10.1504/ijasm.2023.10060265","DOIUrl":"https://doi.org/10.1504/ijasm.2023.10060265","url":null,"abstract":"","PeriodicalId":38028,"journal":{"name":"International Journal of Agile Systems and Management","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135501348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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