V A Akshay, A Srirekha, Jayakumar Reddy, C Champa, Ashwija Shetty, Archana Srinivasan
{"title":"TruNatomy、ProTaper和RaCe锉刀系统治疗中度弯曲下颌磨牙的疗效评估：一项体外研究。","authors":"V A Akshay, A Srirekha, Jayakumar Reddy, C Champa, Ashwija Shetty, Archana Srinivasan","doi":"10.4103/jcd.jcd_143_23","DOIUrl":null,"url":null,"abstract":"<p><strong>Context: </strong>Endodontic retreatment is the first line of treatment in cases of failed primary endodontic treatment. Although associated with challenges such as incomplete removal of obturating material, increased clinical time, and extrusion of apical debris, endodontic retreatment still has considerable success rate in the general population.</p><p><strong>Aims: </strong>The aim of this study was to evaluate and compare the efficacy of TruNatomy, ProTaper retreatment, and RaCe file systems to remove the obturating material, time taken to remove the obturating material, and apical extrusion of debris using cone-beam computed tomography (CBCT).</p><p><strong>Settings and design: </strong><i>In vitro</i> study.</p><p><strong>Subjects and methods: </strong>Forty-five moderately curved mesiobuccal roots of the mandibular molars were instrumented up to #25, 4% taper and obturated with bioceramic sealer and lateral compaction technique. Teeth were divided randomly into three groups (<i>n</i> = 15). Teeth were retreated with TruNatomy, ProTaper retreatment, and RaCe file systems, respectively. Preretreatment and postretreatment CBCT scans were recorded and percentage of obturating material removed was calculated. Time taken to remove the obturating material and apical extrusion of debris was noted.</p><p><strong>Statistical analysis used: </strong>Descriptive statistics including percentage, mean, standard deviation, Tukey's <i>post hoc</i> test, Kruskal-Wallis test, and Mann-Whitney <i>Post hoc</i> test were used.</p><p><strong>Results: </strong>The total time needed for the removal of obturating material was comparatively shorter in the RaCe group, followed by the ProTaper retreatment group and TruNatomy group (<i>P</i> < 0.001). TruNatomy files were significantly better in removing the obturating material than the ProTaper retreatment files (<i>P</i> = 0.04). Statically, no difference between RaCe and TruNatomy files was noted. Apically extruded debris was more in the TruNatomy group than in the RaCe and ProTaper retreatment groups (<i>P</i> = 0.01).</p><p><strong>Conclusions: </strong>All tested endodontic files were effective in removal of obturating material, although none could completely remove the filling material and no system could completely eliminate apical extrusion.</p>","PeriodicalId":38892,"journal":{"name":"Journal of Conservative Dentistry","volume":"26 4","pages":"383-387"},"PeriodicalIF":0.0000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497093/pdf/","citationCount":"0","resultStr":"{\"title\":\"Evaluation of the efficacy of TruNatomy, ProTaper retreatment, and RaCe file systems in retreatment of moderately curved mandibular molars: An <i>in vitro</i> study.\",\"authors\":\"V A Akshay, A Srirekha, Jayakumar Reddy, C Champa, Ashwija Shetty, Archana Srinivasan\",\"doi\":\"10.4103/jcd.jcd_143_23\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Context: </strong>Endodontic retreatment is the first line of treatment in cases of failed primary endodontic treatment. Although associated with challenges such as incomplete removal of obturating material, increased clinical time, and extrusion of apical debris, endodontic retreatment still has considerable success rate in the general population.</p><p><strong>Aims: </strong>The aim of this study was to evaluate and compare the efficacy of TruNatomy, ProTaper retreatment, and RaCe file systems to remove the obturating material, time taken to remove the obturating material, and apical extrusion of debris using cone-beam computed tomography (CBCT).</p><p><strong>Settings and design: </strong><i>In vitro</i> study.</p><p><strong>Subjects and methods: </strong>Forty-five moderately curved mesiobuccal roots of the mandibular molars were instrumented up to #25, 4% taper and obturated with bioceramic sealer and lateral compaction technique. Teeth were divided randomly into three groups (<i>n</i> = 15). Teeth were retreated with TruNatomy, ProTaper retreatment, and RaCe file systems, respectively. Preretreatment and postretreatment CBCT scans were recorded and percentage of obturating material removed was calculated. Time taken to remove the obturating material and apical extrusion of debris was noted.</p><p><strong>Statistical analysis used: </strong>Descriptive statistics including percentage, mean, standard deviation, Tukey's <i>post hoc</i> test, Kruskal-Wallis test, and Mann-Whitney <i>Post hoc</i> test were used.</p><p><strong>Results: </strong>The total time needed for the removal of obturating material was comparatively shorter in the RaCe group, followed by the ProTaper retreatment group and TruNatomy group (<i>P</i> < 0.001). TruNatomy files were significantly better in removing the obturating material than the ProTaper retreatment files (<i>P</i> = 0.04). Statically, no difference between RaCe and TruNatomy files was noted. Apically extruded debris was more in the TruNatomy group than in the RaCe and ProTaper retreatment groups (<i>P</i> = 0.01).</p><p><strong>Conclusions: </strong>All tested endodontic files were effective in removal of obturating material, although none could completely remove the filling material and no system could completely eliminate apical extrusion.</p>\",\"PeriodicalId\":38892,\"journal\":{\"name\":\"Journal of Conservative Dentistry\",\"volume\":\"26 4\",\"pages\":\"383-387\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497093/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Conservative Dentistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4103/jcd.jcd_143_23\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2023/7/28 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"Dentistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Conservative Dentistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/jcd.jcd_143_23","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/7/28 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"Dentistry","Score":null,"Total":0}
Evaluation of the efficacy of TruNatomy, ProTaper retreatment, and RaCe file systems in retreatment of moderately curved mandibular molars: An in vitro study.
Context: Endodontic retreatment is the first line of treatment in cases of failed primary endodontic treatment. Although associated with challenges such as incomplete removal of obturating material, increased clinical time, and extrusion of apical debris, endodontic retreatment still has considerable success rate in the general population.
Aims: The aim of this study was to evaluate and compare the efficacy of TruNatomy, ProTaper retreatment, and RaCe file systems to remove the obturating material, time taken to remove the obturating material, and apical extrusion of debris using cone-beam computed tomography (CBCT).
Settings and design: In vitro study.
Subjects and methods: Forty-five moderately curved mesiobuccal roots of the mandibular molars were instrumented up to #25, 4% taper and obturated with bioceramic sealer and lateral compaction technique. Teeth were divided randomly into three groups (n = 15). Teeth were retreated with TruNatomy, ProTaper retreatment, and RaCe file systems, respectively. Preretreatment and postretreatment CBCT scans were recorded and percentage of obturating material removed was calculated. Time taken to remove the obturating material and apical extrusion of debris was noted.
Statistical analysis used: Descriptive statistics including percentage, mean, standard deviation, Tukey's post hoc test, Kruskal-Wallis test, and Mann-Whitney Post hoc test were used.
Results: The total time needed for the removal of obturating material was comparatively shorter in the RaCe group, followed by the ProTaper retreatment group and TruNatomy group (P < 0.001). TruNatomy files were significantly better in removing the obturating material than the ProTaper retreatment files (P = 0.04). Statically, no difference between RaCe and TruNatomy files was noted. Apically extruded debris was more in the TruNatomy group than in the RaCe and ProTaper retreatment groups (P = 0.01).
Conclusions: All tested endodontic files were effective in removal of obturating material, although none could completely remove the filling material and no system could completely eliminate apical extrusion.
期刊介绍：
The Journal of Conservative Dentistry (ISSN - 0972-0707) is the official journal of the Indian Association of Conservative Dentistry and Endodontics (IACDE). Our journal publishes scientific articles, case reports, short communications, invited reviews and comparative studies evaluating materials and methods in the fields of Conservative Dentistry, Dental Materials and Endodontics. J Conserv Dent has a diverse readership that includes full-time clinicians, full-time academicians, residents, students and scientists. Effective communication with this diverse readership requires careful attention to writing style.
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