Journal of endodontics最新文献

{"title":"The Novel Assessment to Explore the Cutting Performance of Rotary Instruments Using Dynamic Finite Element Analysis With Failure Mode","authors":"Chih-Wen Chi DDS, PhD ,&nbsp;Weng-Pin Chen PhD ,&nbsp;Wei-Ting Liu MD ,&nbsp;Ting-Ju Lai MD ,&nbsp;Chun-Pin Lin DDS, PhD","doi":"10.1016/j.joen.2024.12.018","DOIUrl":"10.1016/j.joen.2024.12.018","url":null,"abstract":"<div><h3>Introduction</h3><div>The separation of Nickel-Titanium (NiTi) endodontic instruments due to excessive torque adversely affects treatment outcomes. Previous studies have analyzed torque values under static conditions and failed to accurately simulate the dynamic conditions of instruments within root canals. This study aimed to apply a novel finite element analysis (FEA) to assess the real-time dynamic performance of NiTi endodontic instruments during operation in root canals.</div></div><div><h3>Methods</h3><div>In this study, three-dimensional geometric models of commercial NiTi endodontic instruments (ProTaper Universal) and simulated root canals were developed. In the first part, dynamic analyses of the instruments operating within root canals were simulated using finite element fracture theory and validated through experimental methods. To assess the consistency between the experimental results generated by different instruments (ProTaper Universal SX, S1, S2, and F1) and the FEA results, we utilized Bland-Altman plots for visualization and the Intraclass Correlation Coefficient for comparing continuous data. In the second part, the FEA was employed to establish a safe and efficient sequence for root canal shaping.</div></div><div><h3>Results</h3><div>The findings indicated a similar trend between the analyzed and experimental groups. The Bland-Altman plot demonstrated a high level of consistency, with Intraclass Correlation Coefficient values ranging from 0.6407 to 0.9351. To evaluate the dynamic performance of commercial endodontic instruments in canals, the instruments experienced excessive torque values and significant loading. Based on torque control, new sequences for safe and effective root canal preparation were proposed.</div></div><div><h3>Conclusion</h3><div>FEA with failure mode was demonstrated to simulate the real-time dynamic performance of instruments working in the simulated canals. This assessment offers guidance for clinical protocols and the development of innovative instruments with improving safety and efficacy in endodontic treatments through computer-aided techniques.</div></div>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 507-513"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142915073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Core Outcome Set in Endodontics (COS-ENDO): Part 3 – COS-ENDO for Studies of Surgical Endodontics in Permanent Teeth","authors":"Maryam Zanjir DDS, MSc ,&nbsp;Elaine Cardoso DDS, MSc, MBA ,&nbsp;Nicola L. Harman BSc, MSc, PhD ,&nbsp;Ava Khansari BScH ,&nbsp;Hamid Jafarzadeh DDS, MSc ,&nbsp;Gevik Malkhassian DDS, MSc, FRCP(C) ,&nbsp;Mike Sabeti DDS, MA ,&nbsp;Anita Aminoshariae DDS, MA ,&nbsp;Anil Kishen BDS, MDS, PhD ,&nbsp;Joanna E.M. Sale MSc, PhD ,&nbsp;Prakesh S. Shah MSc, MBBS, MD, DCH, MRCP, FRCP(C) ,&nbsp;Amir Azarpazhooh DDS, MSc, PhD, FRCP(C)","doi":"10.1016/j.joen.2025.01.011","DOIUrl":"10.1016/j.joen.2025.01.011","url":null,"abstract":"<div><h3>Introduction</h3><div>Methodological heterogeneity and reporting bias complicate interpreting endodontic outcomes. Supported by the American Association of Endodontists and its Foundation, this study developed the Core Outcome Set in Endodontics (COS-ENDO) to standardize reporting for studies of nonsurgical root canal treatment/retreatment, surgical endodontics, vital pulp therapy, apexification, and regenerative endodontics. This article, part 3 of a 5-part series, focuses on COS-ENDO for surgical endodontics, while other parts address the remaining treatments.</div></div><div><h3>Methods</h3><div>Outcomes were identified through a scoping review, a qualitative study with patients, and a web-based survey of American Association of Endodontists practicing members. In a 2-round Delphi survey, clinicians, patients, and researchers rated outcomes on a 9-point scale. Ratings were assessed against consensus criteria, and a virtual meeting finalized COS-ENDO.</div></div><div><h3>Results</h3><div>Of the 97 invited participants to round 1, 77 registered, and 73 (24 academicians/researchers, 26 clinicians, and 23 patients or their parents/caregivers) assessed 46 outcomes, with 17 excluded. The remaining outcomes—7 achieving consensus for inclusion and 22 lacking consensus—advanced to round 2 for rerating by 70 participants. This resulted in 1 outcome achieving consensus for exclusion, 10 for inclusion, and 18 lacking consensus. In the final meeting, 16 participants finalized the COS-ENDO for surgical endodontics, including Tooth survival, Pain, Signs of infection, Radiographic evidence of periradicular healing, Success, Functional tooth, Need for further intervention, and Adverse events/Complications.</div></div><div><h3>Conclusions</h3><div>COS-ENDO is an important step in standardizing outcome reporting in endodontics, ensuring consistent reporting and enhancing research utility. Further efforts are needed to establish optimal measurement methods.</div></div>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 427-441"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143074644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Core Outcome Set in Endodontics (COS-ENDO): Part 1 – General Methods for Developing COS-ENDO for Studies of Nonsurgical Root Canal Treatment, Retreatment, Surgical Endodontics, Vital Pulp Therapy, Apexification, and Regenerative Endodontics in Permanent Teeth","authors":"Amir Azarpazhooh DDS, MSc, PhD, FRCP(C) ,&nbsp;Maryam Zanjir DDS, MSc ,&nbsp;Elaine Cardoso DDS, MSc, MBA ,&nbsp;Nicola L. Harman BSc, MSc, PhD ,&nbsp;Ava Khansari BScH ,&nbsp;Hamid Jafarzadeh DDS, MSc ,&nbsp;Gevik Malkhassian DDS, MSc, FRCP(C) ,&nbsp;Mike Sabeti DDS, MA ,&nbsp;Anita Aminoshariae DDS, MA ,&nbsp;Anil Kishen BDS, MDS, PhD ,&nbsp;Joanna E.M. Sale MSc, PhD ,&nbsp;Prakesh S. Shah MSc, MBBS, MD, DCH, MRCP, FRCP(C)","doi":"10.1016/j.joen.2025.01.008","DOIUrl":"10.1016/j.joen.2025.01.008","url":null,"abstract":"<div><h3>Introduction</h3><div>Methodological heterogeneity and reporting bias complicate interpreting endodontic outcomes. Supported by the American Association of Endodontists and its Foundation, this study developed the Core Outcome Set in Endodontics (COS-ENDO) to standardize reporting for studies of nonsurgical root canal treatment/retreatment, surgical endodontics, vital pulp therapy, apexification, and regenerative endodontics. This article, the first in a 5-part series, outlines the methods for developing COS-ENDO, with detailed findings for each treatment presented in subsequent parts.</div></div><div><h3>Methods</h3><div>Outcomes were identified through scoping reviews, a qualitative study with patients, and a web-based survey of American Association of Endodontists practicing members. In a 2-round Delphi survey, clinicians, patients, and researchers rated outcomes on a 9-point scale. Ratings were assessed against consensus criteria, and a virtual meeting finalized COS-ENDO.</div></div><div><h3>Results</h3><div>Of the 97 invited participants to round 1, 77 (79%) registered and 73 (95%) completed the survey, including 24 academicians/researchers, 26 clinicians, and 23 patients (or their caregivers/parents). They rated 64 outcomes, totaling 182 occurrences across treatments: 39 for nonsurgical root canal treatment/retreatment, 46 for surgical endodontics, 46 for vital pulp therapy, and 51 for apexification/regenerative endodontics. The outcomes that achieved consensus for inclusion and those lacking consensus (either for inclusion or exclusion) advanced to round 2 for rerating by 70 participants. During the final consensus meeting, 16 participants discussed the outcomes and finalized the COS-ENDO.</div></div><div><h3>Conclusion</h3><div>COS-ENDO is an important step toward standardizing outcome reporting in endodontics. Its implementation will ensure consistent reporting, enhancing research utility and evidence synthesis. Further efforts are needed to establish optimal measurement methods.</div></div>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 401-411"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143074800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Core Outcome Set in Endodontics (COS-ENDO): Part 5 – COS-ENDO for Studies of Apexification and Regenerative Endodontics in Permanent Teeth","authors":"Maryam Zanjir DDS, MSc ,&nbsp;Elaine Cardoso DDS, MSc, MBA ,&nbsp;Nicola L. Harman BSc, MSc, PhD ,&nbsp;Ava Khansari BScH ,&nbsp;Hamid Jafarzadeh DDS, MSc ,&nbsp;Gevik Malkhassian DDS, MSc, FRCP(C) ,&nbsp;Mike Sabeti DDS, MA ,&nbsp;Anita Aminoshariae DDS, MA ,&nbsp;Anil Kishen BDS, MDS, PhD ,&nbsp;Joanna E.M. Sale MSc, PhD ,&nbsp;Prakesh S. Shah MSc, MBBS, MD, DCH, MRCP, FRCP(C) ,&nbsp;Amir Azarpazhooh DDS, MSc, PhD, FRCP(C)","doi":"10.1016/j.joen.2025.01.012","DOIUrl":"10.1016/j.joen.2025.01.012","url":null,"abstract":"<div><h3>Introduction</h3><div>Methodological heterogeneity and reporting bias complicate interpreting endodontic outcomes. Supported by the American Association of Endodontists and its Foundation, this study developed the Core Outcome Set in Endodontics (COS-ENDO) to standardize reporting for studies of Nonsurgical Root Canal Treatment/Retreatment, Surgical Endodontics, Vital Pulp Therapy, Apexification, and Regenerative Endodontics. This article, the last in a 5-part series, focuses on COS-ENDO for Apexification and Regenerative Endodontics, while other parts address the remaining treatments.</div></div><div><h3>Methods</h3><div>Outcomes were identified through scoping reviews and a web-based survey of American Association of Endodontists practicing members. In a 2-round Delphi survey, clinicians, patients, and researchers rated outcomes on a 9-point scale. Ratings were assessed against consensus criteria, and a virtual meeting finalized COS-ENDO.</div></div><div><h3>Results</h3><div>Of the 97 invited participants to Round 1, 77 registered, and 73 (24 Academicians/Researchers, 26 Clinicians, and 23 Patients or their parents/caregivers) assessed 51 outcomes, with 18 excluded. The remaining outcomes—7 achieving consensus for inclusion and 26 lacking consensus—advanced to Round 2 for re-rating by 70 participants. This resulted in 14 outcome achieving consensus for inclusion, and 19 lacking consensus. In the final meeting, 16 participants finalized the COS-ENDO for Apexification and Regenerative Endodontics, including Tooth survival, Pain, Signs of infection, Radiographic evidence of periradicular healing, Continued root development, Success, Functional tooth, Need for further intervention, and Adverse events/Complications.</div></div><div><h3>Conclusion</h3><div>COS-ENDO is an important step in standardizing outcome reporting in endodontics, ensuring consistent reporting and enhancing research utility. Further efforts are needed to establish optimal measurement methods.</div></div>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 457-472"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143074794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Cavity Designs on Instrumentation, Obturation, and Fracture Resistance of Mandibular First Premolars With Vertucci V Canal","authors":"Yuxuan Liu DDS,&nbsp;Yi Luo DDS,&nbsp;Yaxu Feng DDS,&nbsp;Xianhua Gao DDS,&nbsp;Wei Fan DDS, PhD,&nbsp;Bing Fan DDS, MSc, PhD","doi":"10.1016/j.joen.2024.12.014","DOIUrl":"10.1016/j.joen.2024.12.014","url":null,"abstract":"<div><h3>Introduction</h3><div>This study aimed to assess the effect of cavity designs on instrumentation, obturation and fracture resistance for mandibular first premolars with Vertucci V canal.</div></div><div><h3>Methods</h3><div>Mandibular first premolars with Vertucci V canal were scanned with microcomputed tomography. A total of 20 teeth with moderately curved canal were prepared with conservative endodontic cavity (CEC/M) or traditional endodontic cavity (TEC/M), and 30 with severely curved canal were prepared with CEC (CEC/S), modified CEC (MCEC/S) or TEC (TEC/S). CECs and MCEC were prepared using dynamic navigation systems. TECs were prepared freehand. Canals were prepared with WaveOne Gold, irrigated and then obturated with single-cone technique using iRoot SP sealer and WaveOne Gold gutta-percha cones. After restoration, all teeth were submitted to fracture resistance test. Removal of pericervical dentin, volume of dentin removal, area of untouched canal wall, accumulated hard tissue debris, centering ability, voids in canal filling, and load at fracture were evaluated.</div></div><div><h3>Results</h3><div>MCEC and CEC groups preserved more pericervical dentin above the alveolar bone level and more fracture resistance than TEC groups. At 3 mm from apical foramen, lower centering ability in mesiodistal direction was found in buccal canal of CEC/S group. More voids were found in the lingual canal for CEC/S compared with TEC/S (<em>P</em> &lt; .05).</div></div><div><h3>Conclusions</h3><div>CEC and MCEC prepared with dynamic navigation system could preserve more dentin above the alveolar bone and fracture resistance than TEC prepared freehand. For teeth with severely curved V canal, MCEC showed similar ability in instrumentation and obturation as TEC.</div></div>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 499-506"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic Accuracy of a Commercial AI-based Platform in Evaluating Endodontic Treatment Outcomes on Periapical Radiographs Using CBCT as the Reference Standard.","authors":"Marwa Allihaibi, Garrit Koller, Francesco Mannocci","doi":"10.1016/j.joen.2025.03.007","DOIUrl":"https://doi.org/10.1016/j.joen.2025.03.007","url":null,"abstract":"<p><strong>Introduction: </strong>Artificial intelligence (AI) has shown promise in dental diagnostics, however its accuracy in assessing endodontic treatment outcomes compared to experienced clinicians remains unclear. This study evaluated the performance of an AI-driven platform (Diagnocat) against experienced clinicians in assessing endodontic treatment outcomes on periapical radiographs, using cone-beam computed tomography (CBCT) as the reference standard.</p><p><strong>Methodology: </strong>This retrospective diagnostic accuracy study analyzed 376 teeth (860 roots) from four prospective clinical trials. Treatment outcomes were assessed using periapical radiographs, independently evaluated by two calibrated endodontists and the AI-driven platform. CBCT scans served as the reference standard. Sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve (AUC-ROC) were calculated.</p><p><strong>Results: </strong>The AI-driven platform demonstrated higher sensitivity but lower specificity than clinicians at both tooth (sensitivity: 67.3% vs 49.3%, p<0.001; specificity: 82.3% vs 92.5%, p<0.001) and root levels (sensitivity: 54.3% vs 43.8%, p=0.003; specificity: 86.7% vs 94.5%, p<0.001). Overall accuracy was comparable at the tooth level (AI: 76.3%, clinicians: 75.3%, p=0.716) but slightly lower for the AI-driven platform at the root level (78.5% vs 81.6%, p=0.021). ROC analysis showed comparable AUC values between the AI-driven platform and clinicians at both tooth (0.75 vs 0.71) and root levels (0.71 vs 0.69).</p><p><strong>Conclusion: </strong>While the AI-driven platform demonstrated potential as an adjunctive tool for assessing endodontic treatment outcomes, particularly in detecting lesions that might be missed by human assessment, its lower specificity highlights the need for clinical oversight to prevent overdiagnosis.</p>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Associate Registry","authors":"","doi":"10.1016/S0099-2399(25)00180-3","DOIUrl":"10.1016/S0099-2399(25)00180-3","url":null,"abstract":"","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 528-534"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into the April 2025 Issue of the JOE","authors":"Anita Aminoshariae DDS, MS,&nbsp;Amir Azarpazhooh DDS, MSc, PhD, FRCD(C),&nbsp;Gerald N. Glickman DDS, MS, MBA, JD,&nbsp;Jianing He DMD, PhD,&nbsp;Sahng G. Kim DDS, MS,&nbsp;Anil Kishen BDS, MDS, PhD,&nbsp;Ariadne M. Letra DDS, MS, PhD,&nbsp;Linda Levin DDS, PhD,&nbsp;Ronald Ordinola-Zapata DDS, MS, PhD,&nbsp;Frank C. Setzer DMD, PhD, MS,&nbsp;Franklin R. Tay BDSc(Hons), PhD,&nbsp;Kenneth M. Hargreaves DDS, PhD","doi":"10.1016/j.joen.2025.03.006","DOIUrl":"10.1016/j.joen.2025.03.006","url":null,"abstract":"","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":"51 4","pages":"Pages 397-398"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patient-Centered Outcome Assessment of Static and Dynamic Navigation-Aided Endodontic Microsurgery: A Randomized Controlled Trial.","authors":"Chen Chen, Rui Zhang, Li Qin, Yeyu Lin, Xining Zhang, Fangzhe Li, Liuyan Meng","doi":"10.1016/j.joen.2025.03.005","DOIUrl":"10.1016/j.joen.2025.03.005","url":null,"abstract":"<p><strong>Introduction: </strong>This study aimed to evaluate the quality of life (QoL) and analgesic use 1 week after surgery, as well as the surgical duration, associated with static navigation (SN) and dynamic navigation (DN)-aided endodontic microsurgery (EMS).</p><p><strong>Methods: </strong>Sixty patients were randomly assigned to the SN group (n = 30) or the DN group (n = 30). Both groups underwent EMS based on a presurgical plan. The primary outcomes were patient-reported QoL and analgesic use during the first week, while the secondary outcome was the duration of guided procedures, including osteotomy and root-end resection. QoL was assessed using a visual analog scale-based questionnaire. The questionnaire evaluated symptoms (pain, swelling, bleeding) and functional impact (mouth opening, chewing, talking, sleeping, daily routine), with average scores for each component calculated daily. The Mann-Whitney U test was used to compare QoL scores and surgery duration between groups, with statistical significance set at P < .05.</p><p><strong>Results: </strong>Postoperative adverse reactions within the first week after SN- and DN-aided EMS were short-lived, peaking early in the postoperative period and gradually subsiding. No significant differences were observed in QoL or analgesic use between the SN and DN groups. Participants in the SN group had significantly shorter surgery duration compared to DN group.</p><p><strong>Conclusion: </strong>Both SN and DN enable minimally invasive EMS with equivalent patient-centered outcomes, though SN demonstrates a significant advantage in reducing the duration of guided osteotomy and root-end resection. These findings provide patient-centered reference metrics to guide the selection between the 2 guided approaches in clinical practice.</p>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OPTIMIZATION OF CONE BEAM COMPUTED TOMOGRAPHY PROTOCOLS TO DETECT THE SECOND MESIOBUCCAL CANAL IN THE PRESENCE OF ARTIFACTS.","authors":"Janaína Zechin, Érica Pozo Mautone, Claudio Antônio Perottoni, Thago Oliveira Gamba, Janete Eunice Zorzi","doi":"10.1016/j.joen.2025.03.002","DOIUrl":"https://doi.org/10.1016/j.joen.2025.03.002","url":null,"abstract":"<p><p>There is difficulty in identifying the mesiobuccal canal in clinical routine. The use of cone beam computed tomography (CBCT) helps overcome this difficulty by providing volumetric details of the teeth and surroundings. Thus, the objective of this study was to determine the effectiveness of different CBCT protocols, with different image resolutions, in visualizing the second mesiobuccal canal in maxxilary molars in the presence of artifacts. To perform the study, the visualization of the second mesiobuccal canal of 28 maxxilary molars with root canal preparation and obturation was used, with the exception of the second mesiobuccal canal. The teeth were placed in a dry maxilla and then scanned with the OP300 MAXIO CBCT unit (4 protocols) and 3D Veraview X800 F150P (3 protocols). Five experienced and blinded evaluators analyzed the images to assess accuracy, sensitivity and specificity. The presence of the second mesiobuccal canal was confirmed by light microscopy (50x magnification) of cross-sections of the roots. Our data showed that the Veraview X800 CT scanner provided better results for accuracy (96%), sensitivity (100%) and specificity (86%). The 50x50/0.085 protocol showed the highest sensitivity (78%), specificity (100%) and accuracy (82%). It was possible to visualize the second mesiovestibular canals in both CT scanners tested; however, the 3D Veraview X800 F150P offered better results for the evaluated patterns. The best protocol in the presence of artifacts was 80x40 FOV and 0.125 voxel size of 3D Veraview X800 F150P.</p>","PeriodicalId":15703,"journal":{"name":"Journal of endodontics","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}