Dental Traumatology最新文献

{"title":"Prevalence, Aetiology and Treatment Patterns of Traumatic Dental Injuries in Permanent Teeth: A Cross-Sectional Study at a Thai University Dental Hospital.","authors":"Sirinya Kulvitit, Kittipat Termteerapornpimol, Pimsiri Kanpittaya, Sasiprapa Prommanee, Vivat Thongchotchat, Ratichanok Nantanee, Thantrira Porntaveetus","doi":"10.1111/edt.70020","DOIUrl":"https://doi.org/10.1111/edt.70020","url":null,"abstract":"<p><strong>Background/aim: </strong>Traumatic dental injuries (TDIs) are a significant public health issue. The aim of this study was to determine the prevalence, aetiological factors, injury types and treatment patterns of TDIs in permanent teeth among patients at a university dental hospital in Bangkok, Thailand.</p><p><strong>Materials and methods: </strong>This study was conducted using dental records and radiographs (2D/3D) of Thai patients treated for TDIs at Chulalongkorn University's endodontics clinic (2016-2024). Eligible cases had complete records and radiographs. Two calibrated examiners extracted data on demographics, injury types and treatments. Statistical analysis was performed using R, employing descriptive statistics and chi-squared tests.</p><p><strong>Results: </strong>This study comprised 175 patients with 453 traumatised teeth. The 6-12-year age group had the highest TDI prevalence (40.00%), with falls as the primary cause (44.00%). Concomitant soft tissue injuries were present in 26.86% of cases, and alveolar fractures in 9.14%. Enamel infractions and concussions were often managed conservatively without direct intervention. Restorative procedures were the primary treatment for coronal fractures, while extraction was indicated for unrestorable crown-root fractures. Root fractures were primarily managed through clinical observation. Luxated teeth were repositioned using appropriate stabilisation techniques. Avulsed teeth were replanted by a dentist with varying success. Endodontic intervention was required for 50.55% of traumatised teeth. Root resorption was identified in 9.71% of teeth, with a higher incidence in teeth with luxation injuries. Pulp canal obliteration was observed in 3.31% of teeth.</p><p><strong>Conclusions: </strong>TDIs affecting permanent teeth are most prevalent in young children aged 6-12 years, with falls as the leading cause, based on data from a metropolitan university dental hospital. Enhanced education for caregivers and educators, along with adherence to guidelines, is vital for early intervention, effective management and improved prognosis. Prospective multicentre studies are needed to improve generalisability and aid in developing efficient TDI prevention and management strategies.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145193917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Students' Self-Perceived Competence in Dental Trauma Management in a Case-Based Simulation Training.","authors":"Marcel Reymus, Christina Fotiadou, Falk Schwendicke, Ralf Krug, Christian Diegritz","doi":"10.1111/edt.70021","DOIUrl":"https://doi.org/10.1111/edt.70021","url":null,"abstract":"<p><strong>Objectives: </strong>The purpose of this study was to evaluate the impact of a case-based hands-on training session on dental students' self-perceived competence in managing traumatic dental injuries (TDI) using an innovative 3D-printed model.</p><p><strong>Methods: </strong>Fifth-year undergraduate students were invited to voluntarily participate in a hands-on training on dental traumatology. Participants worked through a case-based multi-injury trauma using a specially designed 3D-printed model, allowing them to practice examination, diagnosis, and treatment procedures in a realistic clinical scenario. A questionnaire evaluating self-perceived competence in various TDI management domains was conducted immediately before, directly after, and 12 months after the training. Pre- and post-training scores were analyzed statistically.</p><p><strong>Results: </strong>A total of 42 students participated in the training over two consecutive years. Thirty students participated in the evaluation 12 months after the training. Participants demonstrated a statistically significant increase in self-perceived competence for most assessed areas directly after the training, which kept true even after 12 months. The only exception was \"worries about complications during clinical management,\" which showed no significant change.</p><p><strong>Conclusion: </strong>Simulation-based hands-on training substantially enhanced dental students' self-perceived competence in managing TDI.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145193979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Artificial Intelligence in Providing Real-Time Aid in Emergency Dental Trauma: A Clinical Validation Study.","authors":"Nadav Grinberg, Shimrit Arbel, Yana Yarden Boyadjiev, Clariel Ianculovici, Shlomi Kleinman, Oren Peleg","doi":"10.1111/edt.70022","DOIUrl":"https://doi.org/10.1111/edt.70022","url":null,"abstract":"<p><strong>Background: </strong>Searching online for dental emergency treatment as a non-expert can lead to unreliable guidance. We tested the publicly available first multimodal large-language model, ChatGPT-4o, prospectively with real emergency-department avulsion cases to determine if it would deliver guideline-correct, time-critical directions within seconds.</p><p><strong>Methods: </strong>Seventy-eight anonymized avulsion charts (42 permanent, 36 primary teeth; 39 dry, 39 moist; 40 immature roots) were rewritten as lay prompts. ChatGPT-4o created two single responses to each vignette, 14 days apart (156 responses). Three oral and maxillofacial surgeons (OMFS) scored diagnostic accuracy, immediate action, contraindication identification, and completeness. Three lay assessors scored clarity (0-15 composite rating). An additional time-critical safety flag required simultaneous accuracy in immediate action and contraindication advice. Statistical analysis was performed at a 95% confidence level.</p><p><strong>Results: </strong>ChatGPT-4o demonstrated significant rates of accurate guidance. Inter-rater reproducibility was near perfect (ICC = 0.94; κ = 0.88-0.998). The median composite score was 13 (IQR 12-14); permanent dentition elevated the probability for perfect diagnostic, contraindication, and immediate-action scores (p ≤ 0.046), but extra-oral dry time lowered immediate-action (p = 0.003) and reduced completeness (p = 0.023). Root maturity had no effect. Clarity was rated at more than 93% in both sessions. The safety flag was present in 81% and 89% of cases (χ² = 6.73, p = 0.009), with one in eight potentially unsafe situations.</p><p><strong>Conclusions: </strong>This first clinical validation of ChatGPT-4o demonstrates expert-level, reproducible triage for tooth avulsion and introduces the \"time-critical safety\" composite as a strict benchmark for emergency chatbots. There is still a need for guideline-linked retrieval before unsupervised deployment. Clinically, these findings show that while ChatGPT can offer quick and largely accurate advice, the remaining deficiencies highlight the risk of incomplete or unsafe guidance during emergencies.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145193936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preventive Effect of Fluoridated and Non-Fluoridated Toothpastes on Enamel Erosion Caused by Industrialized Energy Drinks and Sports Drinks: An In Vitro Study.","authors":"Princy Annuncia Elias, Zoha Abdullah, Nanda Balan Iyenkani, Arun Kumar Sundaragopal, Indira Nehru, Rajkumar Chakkarapani","doi":"10.1111/edt.70019","DOIUrl":"https://doi.org/10.1111/edt.70019","url":null,"abstract":"<p><strong>Background: </strong>Dental erosion, the irreversible loss of enamel due to acid exposure, is increasingly observed among adolescents and athletes, primarily due to frequent consumption of acidic energy and sports drinks. These beverages, while marketed for performance enhancement, can lead to significant enamel demineralization, especially under reduced salivary flow during intense activity. This in vitro study evaluated the erosive potential of commercially available energy and sports drinks on human enamel and assessed the protective effects of three toothpaste formulations fluoride-based, herbal based and NovaMin-based.</p><p><strong>Materials and methods: </strong>Forty extracted human premolars were randomly divided into four groups (n = 10): Group I (fluoridated toothpaste), Group II (Herbal toothpaste), Group III (NovaMin-based toothpaste), and Group IV (erosion control, no brushing). Baseline surface micro-hardness was measured using the Vickers hardness test. Following brushing simulation, specimens were exposed to Monster Energy and Gatorade for seven days. Post-treatment micro-hardness was assessed and data were analyzed statistically.</p><p><strong>Results: </strong>All test groups showed significantly higher enamel micro-hardness compared to the control group. A significant increase in Mean Vickers Hardness Number was observed from baseline to post-treatment across all test groups. Pepsodent Germicheck (fluoridated toothpaste) showed the greatest protective effect, with mean post-treatment hardness values of 176.11 (Monster Energy) and 165.18 (Gatorade), with corresponding mean differences of 91.82 and 102.75 (p = 0.01).</p><p><strong>Conclusion: </strong>Fluoride and NovaMin toothpastes significantly reduce enamel erosion from acidic drinks. Herbal dentifrices offered limited protection. Preventive strategies, including remineralizing toothpaste use and awareness of beverage acidity, are essential to combat dental erosion.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovations and Evidence-Based Practices in Dental Traumatology","authors":"Ana Beatriz Cantao,&nbsp;Liran Levin","doi":"10.1111/edt.70017","DOIUrl":"10.1111/edt.70017","url":null,"abstract":"&lt;p&gt;Regenerative endodontic treatment (RET) has emerged as a biological alternative for managing traumatized immature permanent teeth with necrotic pulp and apical periodontitis [&lt;span&gt;1&lt;/span&gt;]. Unlike traditional methods such as calcium hydroxide or mineral trioxide aggregate apexification, which provide apical closure but may fail to support continued root development, RET aims to regenerate the pulp–dentin complex, enabling further root maturation and increasing the long-term survival of the affected teeth [&lt;span&gt;2-4&lt;/span&gt;]. The success of RET depends on effectively removing microorganisms from the root canal [&lt;span&gt;4&lt;/span&gt;]. However, eliminating bacterial infection in immature traumatized teeth can be a challenge due to various complicating factors, such as external bacterial invasion, limited mechanical instrumentation, and persistent biofilms. In this issue, Wikström et al. [&lt;span&gt;5&lt;/span&gt;] assessed the disinfection efficacy of calcium hydroxide and chlorhexidine gluconate dressing regarding total bacterial load and influence on treatment outcomes of RET. This clinical study highlighted the critical importance of thorough bacterial reduction for the success of RET.&lt;/p&gt;&lt;p&gt;Dental avulsion is the most frequently reported dental injury in children aged 7–9 years. In both primary and permanent dentitions, the maxillary central incisors are the teeth most commonly affected [&lt;span&gt;6, 7&lt;/span&gt;]. Avulsion occurs more frequently in primary dentition than in permanent dentition [&lt;span&gt;8&lt;/span&gt;]. For permanent teeth, immediate replantation into the socket is the most effective approach, and timely emergency management is crucial for successful treatment and a favorable prognosis [&lt;span&gt;9-11&lt;/span&gt;]. Despite the availability of advanced tools and artificial intelligence (AI) for accessing information, knowledge among laypersons about first aid for dental avulsion remains limited and should be widely disseminated. In this issue, Mathew et al. [&lt;span&gt;12&lt;/span&gt;] detailed the essential steps laypersons should follow to manage permanent tooth avulsion according to the current IADT recommendations. They presented essential tips as a simple and clear guide for laypersons to manage permanent tooth avulsion emergencies effectively.&lt;/p&gt;&lt;p&gt;The temporomandibular joints (TMJs) play a vital role in mandibular movement and functional stability. Together with the mandible, they form the temporomandibular system, which maintains structural integrity and biomechanical balance during daily activities [&lt;span&gt;13&lt;/span&gt;]. However, external forces from sports-related impacts, particularly in contact sports, can disrupt this balance and result in injuries such as TMJs damage, mandibular fractures, and temporomandibular disorders [&lt;span&gt;14&lt;/span&gt;]. Despite the clinical significance of these injuries, the mechanisms by which sports-related impacts lead to TMJs injuries are still lacking in the literature. In this issue, Li et al. [&lt;span&gt;15&lt;/span&gt;] employed an improved finite e","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":"41 5","pages":"495-500"},"PeriodicalIF":3.1,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/edt.70017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145034688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epidemiology of Orofacial Trauma in Syrian Pediatric Athletes: A Cross-Sectional Study on Prevalence and Injury Patterns.","authors":"Taimaa Riad Hamdan, Mayssoon Dashash","doi":"10.1111/edt.70015","DOIUrl":"https://doi.org/10.1111/edt.70015","url":null,"abstract":"<p><strong>Background/aim: </strong>This study aimed to investigate the prevalence and characteristics of orofacial-dental trauma (OT) among 582 child athletes (aged 6-16) in Damascus, Syria.</p><p><strong>Material and methods: </strong>Data were collected through structured interviews and a 13-item questionnaire administered between December 2023 and December 2024. The questionnaire included information about demographics, sports participation, injury history (including both soft and hard tissue injuries), mechanisms of injury, and use of protective gear. A pilot study confirmed the reliability of the questionnaire with a Cronbach's alpha of 0.829. A two-stage sampling method was employed, which involved randomly selecting clubs from a list provided by the General Sports Federation and then randomly sampling 20% of players from each club.</p><p><strong>Results: </strong>The overall prevalence of OT was found to be 45.5%. Age and type of sport significantly affected injury patterns; although males exhibited a slightly higher prevalence, this difference was not statistically significant. The highest injury rate (52.5%) was seen among athletes with 1-5 years of experience. The 12-16 age group was more likely to experience extra-oral soft tissue injuries (39%), followed by dental injuries (23.5%). Falls were identified as the most frequent mechanism of injury, with the highest injury rates (53.2%) occurring during training sessions. Overall, the use of protective gear was low (27.3%), and while injured athletes were less likely to use such gear, this difference was not statistically significant.</p><p><strong>Conclusions: </strong>This study highlights the significant burden of OT among young athletes in Damascus and emphasizes the urgent need for improved prevention strategies, particularly promoting the use of protective gear.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145014430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Validity and Reliability of YouTube and Vimeo Contents About the Management of Tooth Fracture in Permanent Dentition: A Cross-Sectional Study.","authors":"Aakash Gupta, Tarun Kumar Singh, Shagun Gill, Prakash Kumar, Ashish J Johnson, Ikroop Gill, Sasmita Dalai","doi":"10.1111/edt.70014","DOIUrl":"https://doi.org/10.1111/edt.70014","url":null,"abstract":"<p><strong>Aim: </strong>Tooth fracture is one of the most common complications of dental trauma, which needs to be addressed on an emergency basis. The pressing demand for reliable information has prompted both professionals and laypersons to turn to video-sharing platforms like YouTube and Vimeo for guidance regarding the management of tooth fractures among local users. These platforms have emerged as significant sources for advice on dental emergencies; however, the trustworthiness and precision of the information provided have not been thoroughly examined. This research sought to evaluate the quality, accuracy, and reliability of videos on YouTube and Vimeo that address the management of tooth fractures.</p><p><strong>Materials and methods: </strong>A search was conducted on YouTube and Vimeo between November 11, 2024, and February 27, 2025, using terms related to the management of tooth or dental fractures, and 92 videos were included for analysis. Demographic information for the videos, including platform, length, category, upload date, number of likes, and comments, was documented. The assessment of video content quality, reliability, and accuracy was conducted utilizing the Global Quality Scale (GQS), benchmarks from the Journal of the American Medical Association (JAMA), and the Video Information and Quality Index (VIQI).</p><p><strong>Results: </strong>In total, 92 videos were examined. The average scores were JAMA: 3 ± 1, modified DISCERN: 53 ± 11, GQS: 3 ± 1, and VIQI: 5 ± 1. Statistically significant differences were observed across video types in key parameters such as the DISCERN score (YouTube: p = 0.002; Vimeo: p < 0.001), JAMA benchmark (YouTube: p = 0.045; Vimeo: p = 0.002), GQS, VIQI, and overall video evaluation (p < 0.001), emphasizing that video format, video posted, target audience, and platform influence educational impact. With the highest mean views (983,441) and significantly elevated DISCERN (63 ± 9) and JAMA scores (3 ± 1), actual procedure videos exemplify strong informational reliability and public trust.</p><p><strong>Conclusion: </strong>The research indicates that, although the majority of the videos on managing tooth fractures are produced by dental professionals, their overall quality is subpar. This highlights the potential dangers of relying on misleading or insufficient information in these important circumstances.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vital Pulp Therapy for Traumatic Pulpal Exposure in Permanent Teeth: A Path to Healing? Insights From Existing Systematic Reviews.","authors":"Rahul Sharma, Kanaga Durga, Harshita Wadhwa","doi":"10.1111/edt.70016","DOIUrl":"https://doi.org/10.1111/edt.70016","url":null,"abstract":"<p><strong>Aim: </strong>To critically evaluate existing systematic reviews to assess the current status of vital pulp therapy (VPT) for managing traumatic pulpal exposures in permanent teeth.</p><p><strong>Methods: </strong>A comprehensive literature search of multiple electronic databases was conducted for systematic reviews published until November 30, 2024, without language restrictions. Eligible reviews assessed the clinical effectiveness of VPT compared to alternative treatments or no intervention. Reviews that included case reports, laboratory studies, animal studies, and narrative reviews were excluded. The methodological quality was assessed using the A MeaSurement Tool to Assess systematic Reviews (AMSTAR)-2 tool, while the overlap among primary studies was quantified using the covered area and corrected covered area metrics.</p><p><strong>Results: </strong>Four systematic reviews and meta-analyses, incorporating 32 primary studies, met the inclusion criteria. The overlap among primary studies was 18.75%, indicating a high degree of overlap. AMSTAR-2 revealed that all included reviews had a critically low level of confidence due to limitations in search strategies, inconsistency in risk of bias assessment, and lack of reporting of primary study funding sources. Despite these limitations, VPT demonstrated promising outcomes, with partial pulpotomy achieving higher success rates than direct pulp capping and emerging as the preferred approach for immature and mature permanent teeth with complicated crown fractures. However, conflicting evidence prevented definitive conclusions regarding the superiority of pulpotomy over pulp capping with calcium hydroxide Ca(OH)₂ or mineral trioxide aggregate (MTA). Additionally, no significant differences were observed between bioceramic materials and Ca(OH)₂ in pulpotomy cases.</p><p><strong>Conclusion: </strong>Partial pulpotomy appears to be a promising treatment for traumatic pulp exposures in permanent teeth; however, the current evidence base, characterized by critically low AMSTAR-2 ratings, remains insufficient to support definitive clinical recommendations. Given the conflicting and low-quality evidence on the preferred material and the high overlap of primary studies among the included reviews, well-designed randomized controlled trials with long-term follow-up are essential for definitive clinical recommendations.</p><p><strong>Trial registration: </strong>International Prospective Register of Systematic Reviews (PROSPERO) CRD42025650026.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Survival and Success of Teeth Involved in Alveolar Bone Injuries: Up to 10 Years of Follow-Up.","authors":"Cristina Braga Xavier, Anthony Marcowich Rocha, Kerian Dorothy Rehbien, Lucas Borin Moura, Letícia Kirst Post, Kauê Collares","doi":"10.1111/edt.70012","DOIUrl":"https://doi.org/10.1111/edt.70012","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to describe the epidemiological characteristics of patients with ABI treated at a specialized dental trauma center between 1998 and 2023; to analyze the survival rate of teeth involved in alveolar bone injuries (ABI) and assess the risks of healing outcomes for these teeth.</p><p><strong>Materials and methods: </strong>In total, 115 patients (367 traumatized teeth) were included in the epidemiological analysis. Among them, 47 patients (40.9%) and 145 traumatized teeth (40.8%) were followed for 12 to 118 months (1-9.8 years) after trauma. Kaplan-Meier analysis was used to evaluate the survival of traumatized teeth about pulp necrosis (PN), ankylosis-related resorption (ARR), infection-related resorption (IRR), pulp canal obliteration (PCO), tooth loss (TL), and the success rate of treatment. A multivariate regression analysis identified risk factors associated with these outcomes.</p><p><strong>Results: </strong>The mean follow-up period for teeth included was 30 months. Patients with ABI comprised 11.5% of cases treated at the center. After 3 years, the TL rate was 10%; 33% of teeth exhibited no healing complications, classified as successful outcomes. PN was the most common complication, affecting 58% of the sample. The risk of TL was 15 times higher in teeth requiring repositioning or reimplantation following trauma. ABI involving alveolar bone plate avulsion was associated with increased risks of IRR, PN, and lower treatment success rates.</p><p><strong>Conclusions: </strong>Teeth involved in ABI generally have a favorable prognosis, with 90% retained in the oral cavity after 3 years. One-third of these teeth showed no complications during the follow-up period. However, teeth associated with alveolar bone avulsion or requiring replantation or repositioning had higher risks of complications, including IRR, PN, and TL.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Raster Angles on the Mechanical Performance of 3D Printed Face Shield.","authors":"Victor Paes Dias Gonçalves, Ellen Bernardes de Lima, Carlos Maurício Fontes Vieira, Noan Tonini Simonassi, Neide Pena Coto, Lucas Thomazotti Berard, Henry A Colorado, Felipe Perissé Duarte Lopes","doi":"10.1111/edt.70013","DOIUrl":"https://doi.org/10.1111/edt.70013","url":null,"abstract":"<p><strong>Introduction/objectives: </strong>This study investigated the influence of raster angles on the mechanical properties of 3D-printed facial protectors using polylactic acid and thermoplastic polyurethane materials.</p><p><strong>Materials and methods: </strong>Shore D hardness, impact resistance, tensile, and compression tests were conducted to evaluate material performance under different printing orientations.</p><p><strong>Results: </strong>Polylactic acid maintains relative hardness consistency regardless of the printing orientation, while thermoplastic polyurethane exhibits greater variability. In terms of impact resistance, thermoplastic polyurethane outperformed polylactic acid, making it more suitable for applications requiring high energy absorption. Tensile tests revealed that raster orientation significantly affected the mechanical properties, with polylactic acid showing higher tensile strength at 0° raster and thermoplastic polyurethane demonstrating greater ductility. In compression, polylactic acid maintained more consistent strength, whereas thermoplastic polyurethane showed greater variability.</p><p><strong>Conclusions: </strong>The material type and print orientation selection should be tailored to specific application needs, highlighting the advantages of 3D printing for customizing and optimizing facial protection devices.</p>","PeriodicalId":55180,"journal":{"name":"Dental Traumatology","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}