Eugenio Pedullà, Emanuele Ambu, Fabio Rovai, Seok-Woo Chang, Federico Campedelli, Giacomo Corsentino, Silvia Rapisarda, Giusy R. M. La Rosa, Simone Grandini
{"title":"适当或往复最佳转矩反向运动学对四单锉循环疲劳的影响","authors":"Eugenio Pedullà, Emanuele Ambu, Fabio Rovai, Seok-Woo Chang, Federico Campedelli, Giacomo Corsentino, Silvia Rapisarda, Giusy R. M. La Rosa, Simone Grandini","doi":"10.1111/jicd.12409","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Aim</h3>\n \n <p>The aim of the present study was to evaluate the resistance to cyclic fatigue of heat-treated single files used in proper or in reciprocating optimum torque reverse motions.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>Ninety-six HyFlex electrical discharge machining (EDM), Reciproc R25 (Rec), WaveOne Primary (WO), and WaveOne Gold (WOG) Primary were used. Resistance to cyclic fatigue was determined by recording time to fracture in a stainless steel artificial canal. Differential scanning calorimetric analysis was performed. Data were analyzed by two-way analysis of variance and Bonferroni post-hoc tests at 0.05.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>In both movements, HyFlex EDM showed higher time to fracture than other files (<i>P </i><<i> </i>0.0001). Rec showed higher time to fracture than WO (<i>P </i><<i> </i>0.0001), while WOG showed higher cyclic fatigue resistance than Rec and WO with both movements (<i>P </i><<i> </i>0.005).</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Reciprocating optimum torque reverse motion improved significantly cyclic fatigue resistance of gold and controlled memory wire single files.</p>\n </section>\n </div>","PeriodicalId":16204,"journal":{"name":"Journal of Investigative and Clinical Dentistry","volume":"10 3","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/jicd.12409","citationCount":"3","resultStr":"{\"title\":\"Influence of proper or reciprocating optimum torque reverse kinematics on cyclic fatigue of four single files\",\"authors\":\"Eugenio Pedullà, Emanuele Ambu, Fabio Rovai, Seok-Woo Chang, Federico Campedelli, Giacomo Corsentino, Silvia Rapisarda, Giusy R. M. La Rosa, Simone Grandini\",\"doi\":\"10.1111/jicd.12409\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Aim</h3>\\n \\n <p>The aim of the present study was to evaluate the resistance to cyclic fatigue of heat-treated single files used in proper or in reciprocating optimum torque reverse motions.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>Ninety-six HyFlex electrical discharge machining (EDM), Reciproc R25 (Rec), WaveOne Primary (WO), and WaveOne Gold (WOG) Primary were used. Resistance to cyclic fatigue was determined by recording time to fracture in a stainless steel artificial canal. Differential scanning calorimetric analysis was performed. Data were analyzed by two-way analysis of variance and Bonferroni post-hoc tests at 0.05.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>In both movements, HyFlex EDM showed higher time to fracture than other files (<i>P </i><<i> </i>0.0001). Rec showed higher time to fracture than WO (<i>P </i><<i> </i>0.0001), while WOG showed higher cyclic fatigue resistance than Rec and WO with both movements (<i>P </i><<i> </i>0.005).</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusions</h3>\\n \\n <p>Reciprocating optimum torque reverse motion improved significantly cyclic fatigue resistance of gold and controlled memory wire single files.</p>\\n </section>\\n </div>\",\"PeriodicalId\":16204,\"journal\":{\"name\":\"Journal of Investigative and Clinical Dentistry\",\"volume\":\"10 3\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-03-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1111/jicd.12409\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Investigative and Clinical Dentistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/jicd.12409\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Investigative and Clinical Dentistry","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jicd.12409","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Medicine","Score":null,"Total":0}
Influence of proper or reciprocating optimum torque reverse kinematics on cyclic fatigue of four single files
Aim
The aim of the present study was to evaluate the resistance to cyclic fatigue of heat-treated single files used in proper or in reciprocating optimum torque reverse motions.
Methods
Ninety-six HyFlex electrical discharge machining (EDM), Reciproc R25 (Rec), WaveOne Primary (WO), and WaveOne Gold (WOG) Primary were used. Resistance to cyclic fatigue was determined by recording time to fracture in a stainless steel artificial canal. Differential scanning calorimetric analysis was performed. Data were analyzed by two-way analysis of variance and Bonferroni post-hoc tests at 0.05.
Results
In both movements, HyFlex EDM showed higher time to fracture than other files (P <0.0001). Rec showed higher time to fracture than WO (P <0.0001), while WOG showed higher cyclic fatigue resistance than Rec and WO with both movements (P <0.005).
Conclusions
Reciprocating optimum torque reverse motion improved significantly cyclic fatigue resistance of gold and controlled memory wire single files.
期刊介绍：
Journal of Investigative and Clinical Dentistry (JICD) aims to publish quality, peer reviewed original research and topical reviews on all aspects of investigative and clinical dentistry and craniofacial research, including molecular studies related to oral health and disease. Although international in outlook, the Editor especially encourages papers from the Asia Pacific. The journal also aims to provide clinicians, scientists and students of dentistry with a knowledge transfer platform for rapid publication of reports through an international journal, which will be available free online until 2012. Its scope, therefore, is broad, inclusive and international, but with a particular focus on Asia Pacific. The Editor welcomes manuscripts in the following key thematic areas in oral and maxillofacial sciences: Community Dentistry and Oral Epidemiology, Conservative Dentistry, Dental Biomaterials, Dental Pedagogy, Endodontics and Traumatology, Implant Dentistry, Oral Biosciences, Oral and Maxillofacial Surgery, Oral Medicine, Oral Pathology and Oral Microbiology, Orthodontics, Oral Radiology, Oral Rehabilitation, Paedodontics, Periodontology and Periodontal Medicine.
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