Australian Endodontic Journal最新文献

{"title":"How Well Are Dental Students Equipped to Handle Traumatic Dental Injuries in Children?","authors":"Sobia Zafar,&nbsp;Luan Lin Jovita Cheong,&nbsp;Vonn Ler,&nbsp;Anastasia Min Teh,&nbsp;Paul Abbott","doi":"10.1111/aej.70074","DOIUrl":"10.1111/aej.70074","url":null,"abstract":"<p>To evaluate dental students' knowledge and confidence in managing dental trauma (TDI). An observational questionnaire-based study involving fourth-year BDSc (Hons) students from 2022 and 2023 at UQ, following their Traumatic Dental Injury module. A 44-item questionnaire assessed knowledge in managing TDI in primary dentition and fractures, subluxations and avulsion of permanent teeth. Confidence was self-reported. Scores were categorised as Below average (0%–49.9%), Average (50%–74.9%) and Above average (75%–100%). Data analysis used Jamovi (Version 2.3.18), with Prism GraphPad (Version 10.0.2) for graphs. Of 151 students, 118 completed the questionnaire (78.1% response rate). Average knowledge was 59.6%, with better understanding of primary dentition management (76.5%) and poor knowledge of avulsion management (42.6%). Most students (70.3%) demonstrated average knowledge, but 83.9% reported low confidence. Students had average knowledge but low confidence in managing TDI cases, highlighting the need for more undergraduate and postgraduate clinical exposure and preclinical simulations.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"488-497"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aej.70074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147624810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting MB2 Canal Morphology From Contralateral Teeth: CBCT-Based Bilateral Symmetry Analysis","authors":"Ronald Wigler,&nbsp;Shir Rachmiel,&nbsp;Zvi Metzger,&nbsp;Anda Kfir","doi":"10.1111/aej.70061","DOIUrl":"10.1111/aej.70061","url":null,"abstract":"<div>\u0000 \u0000 <p>Maxillary molars are prone to endodontic failure due to complex mesio-buccal canal anatomy. With increasing use of cone-beam computed tomography (CBCT), clinicians often have access to scans of homologous or contralateral teeth. This study assessed whether CBCT could predict the presence and configuration of the second mesio-buccal canal (MB2) based on bilateral symmetry. Ninety-nine CBCT scans of bilateral first and second maxillary molars were analysed. MB2 prevalence and Vertucci classification were compared among homologous, adjacent, and contralateral molars. MB2 canals were present in 96.5% of first and 81.3% of second molars. Strong correlations were found between bilateral first molars (91.9%) and bilateral second molars (78.8%), whereas agreement between adjacent or contralateral molars was lower (~60%, <i>p</i> &lt; 0.05). These results indicate that CBCT scans can reliably predict the presence and configuration of the MB2 canal in bilateral maxillary molars, but this correlation does not extend to adjacent or contralateral teeth.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"405-410"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146108251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Simvastatin on Success of Pulpotomy in Carious Permanent Molars With Symptomatic Irreversible Pulpitis: A Randomised Controlled Trial","authors":"Sudeepender Gehlot,&nbsp;Vinay Kumar,&nbsp;Shweta Mittal,&nbsp;Jigyasa Duhan,&nbsp;Pankaj Sangwan,&nbsp;Mayank Arora,&nbsp;Nishant Chauhan","doi":"10.1111/aej.70062","DOIUrl":"10.1111/aej.70062","url":null,"abstract":"<div>\u0000 \u0000 <p>The aim of this study was to assess the effectiveness of simvastatin (SMV) in combination with alpha tricalcium phosphate (αTCP) as pulpotomy agents in cariously exposed permanent mandibular molars with symptomatic irreversible pulpitis. Sixty patients were randomly assigned equally to either the SMV-αTCP or MTA group. The overall success of the treatments was evaluated after 12 months. Pain levels were recorded by patients preoperatively and postoperatively at intervals of 6, 12, 18 h and days 1 through 7. No significant difference in success rates was found between the SMV-αTCP (92.5%) and MTA (96.2%) groups (<i>p</i> &gt; 0.05). Although a significant difference in pain intensity was noted between the groups on the first and second days (<i>p</i> &lt; 0.05), no significant differences in pain levels were observed at any other time points. The outcomes of this study suggest that SMV can be effectively utilised as a pulpotomy agent in carious permanent teeth.</p>\u0000 <p><b>Trial Registration:</b> ClinicalTrials.gov identifier: NCT04374214.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"411-419"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146133526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accuracy of a 3D Intraoral Scanner in Endodontics","authors":"Renata Grazziotin,&nbsp;Ryan Li,&nbsp;Thiago Ardenghi,&nbsp;Diego M. Ardenghi","doi":"10.1111/aej.70065","DOIUrl":"10.1111/aej.70065","url":null,"abstract":"<div>\u0000 \u0000 <p>This study measured the accuracy of an intraoral scanner (Primescan, Dentsply Sirona, Charlotte, NC, USA) in examining endodontic access openings. The method was compared to the clinical microscope and CBCT. Primescan scanned the pulp chambers of 24 extracted molars shortly after access, and the computer-3D models were inspected to document the orifices (number; location) and chamber features (calcifications; defects originated during access; anatomical variations). Scanner agreement to identify the orifices′ number and location was non-significant in relation to both the microscope and CBCT; considered, therefore, accurate. It was also accurate to show defects (bur abrasion) and/or anatomical features (isthmus) in the chamber floor, with diagnostic accuracy estimated in 87.5% (95% CI: 67.6–97.3) in relation to the microscope. Scanner diagnostic accuracy to show calcified orifices was estimated in 79.2% (95% CI: 57.8–92.9) in relation to the microscope, and 70.8% (95% CI: 48.9–87.4) in relation to the CBCT, considered, then, of moderate accuracy.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"431-438"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146229902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NIR-Activated Polydopamine Nanoparticles for Enterococcus faecalis Biofilm Eradication in Root Canal Disinfection","authors":"Jiahe Li,&nbsp;Yong Wang","doi":"10.1111/aej.70060","DOIUrl":"10.1111/aej.70060","url":null,"abstract":"<div>\u0000 \u0000 <p>Persistent bacterial infection remains the primary cause of root canal treatment failure, posing a significant challenge in endodontics. <i>Enterococcus faecalis</i>, with its ability to form biofilms and resist conventional disinfectants, is one of the most commonly isolated species in failed cases. Herein, we developed a novel polydopamine (PDA) nanoparticle-based phototherapy system activated by 808 nm near-infrared (NIR) light for enhanced root canal disinfection. The PDA + NIR group exhibited a significantly superior antibacterial effect compared to 2.5% NaOCl, achieving a bactericidal rate of 97.87%. SEM and TEM observations revealed that PDA + NIR treatment caused complete bacterial cell disintegration and ultrastructural destruction, whereas 2.5% NaOCl only induced partial surface damage. Furthermore, PDA + NIR effectively eradicated mature <i>E. faecalis</i> biofilms in simulated root canal models. These findings demonstrate that PDA-mediated NIR phototherapy possesses powerful bactericidal and antibiofilm capabilities. This nanotechnology-based approach may offer a promising alternative strategy for clinical root canal disinfection.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"398-404"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145992114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Potential of Long-Term Cryopreserved Stem Cells From Impacted Third Molar Pulps for Regenerative Endodontic Procedures: An Ex Vivo Evaluation","authors":"Gözde Kandemir Demirci,&nbsp;Özgün Germiyan,&nbsp;Birant Şimşek,&nbsp;Mehmet Emin Kaval,&nbsp;Pelin Güneri,&nbsp;Uğur Tekin,&nbsp;Timur Köse,&nbsp;Yiğit Uyanıkgil","doi":"10.1111/aej.70071","DOIUrl":"10.1111/aej.70071","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aimed to establish a standardised protocol for isolating dental pulp stem cells (DPSCs) from fully impacted third molar teeth and to assess the effect of long-term cryopreservation on their viability for future clinical applications in regenerative endodontics. DPSCs were isolated from 21 impacted third molars. The clinical relevance of these cells was characterised via flow cytometry, confirming that 96% expressed mesenchymal stem cell markers. Seventeen samples were cryopreserved at −86°C for up to 12 months to evaluate biological stability for autologous transplantation. The standardised surgical extraction and isolation protocol yielded a high concentration of therapeutic-grade cells (3.43 × 10⁶ cells/mL). Post-thaw viability remained stable (74% to 99%) over 12 months. Importantly, the cells maintained consistent morphology, suggesting they retained the biological potential necessary for dentine-pulp complex regeneration. The results validate a reliable long-term DPSC preservation protocol, supporting feasible dental stem cell banking and a source of viable cells for regenerative endodontic procedures.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"470-479"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of Apical Periodontitis, Alveolar Bone Loss, and Root-Filled Teeth Among Olympic Athletes","authors":"Justine Monteiro Monnerat Tinoco,&nbsp;João Victor Frazão Câmara,&nbsp;Rayane da Costa Oliveira Sales,&nbsp;Amara Eulália Chagas Santos,&nbsp;Luciana Moura Sassone,&nbsp;Roy Harris Stevens,&nbsp;João Alves Grangeiro Neto,&nbsp;Eduardo Muniz Barretto Tinoco","doi":"10.1111/aej.70059","DOIUrl":"10.1111/aej.70059","url":null,"abstract":"<div>\u0000 \u0000 <p>To assess the prevalence of apical periodontitis (AP), alveolar bone loss (ABL), and the frequency of root-filled (RF) teeth in athletes, digital panoramic radiographs were obtained from 617 athletes (57.5% males; 42.5% females) with a mean age of 25.4 years (±2.8), evaluating 15.239 teeth. AP was classified using the Periapical Index (PAI). ABL was recorded when bone loss exceeded one-third of root length in more than two teeth. The RF teeth and periapical status were also recorded. Intra-examiner agreement was high (Kappa = 0.87). AP was found in 209 (33.9%) of athletes and 357 (2.3%) of teeth; 89 (42.6%) had multiple lesions. RF teeth were present in 226 (36.6%) of individuals; 189 (52.9%) of these showed AP. Additionally, 168 (47.1%) of AP cases were in non-RF teeth. ABL was detected in three participants (0.49%). AP was prevalent among Olympic athletes, in both RF and non-RF teeth, indicating high endodontic treatment needs.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"392-397"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145967837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Lubricant Viscosity on Separated Instrument Retrieval Time and Dentine Preservation in Root Canal Curvatures: An In Vitro Study","authors":"Pooya Saeedi,&nbsp;Maryam Forghani,&nbsp;Siavash Moushekhian,&nbsp;Kouros Monsef,&nbsp;Mahsa Ghorbani,&nbsp;Seyed Hossein Hosseini Zarch","doi":"10.1111/aej.70057","DOIUrl":"10.1111/aej.70057","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aimed to evaluate the effect of silicone oils with varying viscosities (100, 350 and 1000 cSt) and 17% Ethylenediaminetetraacetic acid (EDTA) (1.8 cSt) on the efficiency of removing separated instruments using an ultrasonic device from the curved regions of mesio-buccal canals in mandibular first and second molars. Forty-eight mesio-buccal canals of mandibular first and second molars with curvatures ranging from 15 to 30 degrees were prepared and simulated with separated instruments. Nickel-titanium (Ni-Ti) 25–4% rotary files, measuring 3–4 mm in length, were intentionally fractured within the curvature region of the canals. The samples were randomly divided into four groups (<i>n</i> = 12) based on the lubricant used: EDTA and silicone oils with viscosities of 100, 350 and 1000 cSt at 25°C. Primary outcomes were retrieval time and dentine loss from the canal's inner wall, measured via Cone Beam Computed Tomography (CBCT). Secondary outcomes included the coronal exposure of separated instruments to initiate bodily movement and the accuracy of CBCT versus periapical radiography in measuring fractured file length. Data were analysed using the Shapiro–Wilk test for normality, one-way ANOVA and the Kruskal-Wallis test at a significance level of 0.05. The experimental conditions were homogeneous between groups, with no significant differences in canal curvature (<i>p</i> = 0.907), ultrasonic preparation time (<i>p</i> = 0.632), or actual SI length (<i>p</i> = 0.082). The results showed no significant differences among the groups regarding SI retrieval time (<i>p</i> = 0.797), dentine loss (<i>p</i> = 0.653), or coronal SI exposure (<i>p</i> = 0.653). CBCT measurements demonstrated significantly greater accuracy in determining fractured file length compared to periapical radiography (<i>p</i> &lt; 0.001). Within the limitations of this in vitro study, the findings suggest that silicone oils, regardless of their viscosity, did not provide additional benefits over EDTA in reducing retrieval time or preserving dentine in the mesio-buccal canals of mandibular molars. However, CBCT proved more accurate than periapical radiography in measuring SI length. Despite the lack of significant effects of silicone oils with higher viscosity, EDTA remains clinically preferred due to its inherent chelating properties. Further research is needed to confirm or refute these findings.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"381-391"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146054999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Performance of Large Language Models on Antibiotic Prophylaxis for Endodontic Treatments","authors":"Selin Goker Kamali,&nbsp;Yaren Tuana Imamoglu","doi":"10.1111/aej.70086","DOIUrl":"10.1111/aej.70086","url":null,"abstract":"<div>\u0000 \u0000 <p>This study compared the accuracy and repeatability of responses generated by three advanced language models (ChatGPT-4, Gemini, and DeepSeek) in determining the necessity and appropriate regimen of antibiotic prophylaxis in endodontic treatment. 15 questions on the basis of guidance published by the European Society of Endodontics in 2018 were developed and presented to each model by three different users, three times per day over 10 consecutive days. Accuracy was evaluated for individual questions and overall performance, and repeatability across days and times was statistically analysed. All models consistently provided correct responses for patients with penicillin allergy and those with a history of infective endocarditis. Significant differences were observed in responses regarding joint prosthesis, high-dose radiation to the jaws, bypass surgery history, and controlled diabetes, although overall accuracy did not differ significantly among models. These findings highlight the potential clinical value of the models, but their responses must be verified before clinical use.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"349-355"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147724882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Large Language Model-Based Chatbots for Dental Trauma Management: A Comparative Study Based on Accuracy, Consistency and Information Quality","authors":"Vasfiye Isik,&nbsp;Rana Ikbal Sengul,&nbsp;Soner Sismanoglu","doi":"10.1111/aej.70055","DOIUrl":"10.1111/aej.70055","url":null,"abstract":"<div>\u0000 \u0000 <p>This study evaluated and compared the accuracy, consistency, readability, and information quality of three LLM-based chatbots, namely ChatGPT-5, Claude AI (Sonnet 4.0), and Perplexity (Mistral Large 2), in addressing traumatic dental injury questions. Forty true/false statements were submitted to each chatbot three times at weekly intervals to assess accuracy and consistency. Additionally, chatbot responses for 25 open-ended case-based questions were evaluated for readability, understandability and actionability, information reliability and quality. For true/false questions, Perplexity showed the highest accuracy, followed by Claude and ChatGPT. For open-ended responses, ChatGPT excelled in readability (FRE: 62.4 ± 7.6), Perplexity in understandability (91.0 ± 4.3) and actionability (93.0 ± 6.4) and Claude in information reliability (mDISCERN total: 61.2; no variability observed). All chatbots achieved acceptable global quality scores (&gt; 4.4). These findings emphasise the complementary role of chatbots in dental trauma management. Tool selection should be based on intended use, while continued human oversight remains essential in clinical decision-making.</p>\u0000 </div>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"52 2","pages":"356-363"},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145936497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}