{"title":"Foreword. Innovations and new technologies in bonded orthodontic retainers: putting the different wires into perspective","authors":"Paul Boury, Michel Le Gall","doi":"10.1684/orthodfr.2025.215","DOIUrl":"10.1684/orthodfr.2025.215","url":null,"abstract":"<p><strong>Introduction: </strong>The choice of retainer wire is crucial to ensuring long-lasting orthodontic results. Beyond simple mechanical retention, it must meet specific requirements in terms of design, physical properties, and biocompatibility. To date, there is no consensus on the best material, and new generations of wires continue to emerge to address the limitations of existing systems.</p><p><strong>Objective: </strong>This article aims to describe and compare various types of retainer wires, whether they are shaped manually, such as Respond and Ortho-Flextech, or produced using a robotic process, such as Memotain, TMA Winnove Medical, or PolyEther-Ether-Keton (PEEK) wire.</p><p><strong>Materials and methods: </strong>The \"ideal wire\" should ensure a custom fit, appropriate mechanical properties, smooth surface quality, biocompatibility, durability, and acceptable aesthetics. Current options include chairside wires (Respond and Ortho-FlexTech), CAD/CAM or robot-made retainers (laser-cut NiTi Memotain and robot-bent TMA Winnove), and milled PEEK devices. Each option involves trade-offs: adaptability and flexibility versus rigidity and control; isotropy of round sections versus anisotropy of square sections; and added costs and logistical demands associated with digital workflows.</p><p><strong>Discussion: </strong>In multistranded wires, Young's modulus (E) corresponds to that of the base alloy; clinical stiffness depends instead on the effective EI (geometry, compaction, and inter-strand slip). Clinical success also relies heavily on bonding quality: thin, even resin layers and short spans between composite pads are as important as the wire itself. Overall performance therefore results from the synergy of wire, adhesive, and clinical technique.</p><p><strong>Conclusion: </strong>Future developments are likely to focus on increased robotization, adhesive optimization, and the use of high-performance polymers. However, no current solution can yet be considered flawless.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 4","pages":"353-365"},"PeriodicalIF":0.0,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147350211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laurent Delsol, Elie Kikano, Pierre Canal, William Bacon, Carole Charavet
{"title":"Root resorption and orthodontic treatment : A case series","authors":"Laurent Delsol, Elie Kikano, Pierre Canal, William Bacon, Carole Charavet","doi":"10.1684/orthodfr.2025.199","DOIUrl":"10.1684/orthodfr.2025.199","url":null,"abstract":"<p><strong>Objective: </strong>This clinically oriented article aims to describe specific situations of root resorption, whether suspected or confirmed, and to provide a focused analysis.</p><p><strong>Materials and method: </strong>Eight clinical cases are presented in different contexts: presence of presumptive signs of root resorption, pre-existing resorption prior to treatment, and resorption occurring during treatment, among others.</p><p><strong>Discussion: </strong>The integration of these resorptions when developing the treatment plan and the medico-legal aspect associated with this issue must be taken into consideration. Although this article does not seek to introduce new data on a topic that has already been widely studied, it offers a distinctive clinical perspective through specific comments and considerations illustrated by well-defined clinical cases.</p><p><strong>Conclusion: </strong>These insights should enable practitioners to be better prepared to manage root resorption, including its medico-legal aspects.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 4","pages":"367-393"},"PeriodicalIF":0.0,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147349463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Management of permanent teeth with dentoalveolar trauma (or a history thereof) by orthodontists: Short-, medium-, and long-term considerations","authors":"Sandrella Hamdan, Violaine Smail-Faugeron, Frédéric Courson","doi":"10.1684/orthodfr.2025.200","DOIUrl":"10.1684/orthodfr.2025.200","url":null,"abstract":"<p><strong>Introduction: </strong>In the practices of roughly one third of orthodontists, at least one patient has experienced the loss of a tooth following orthodontic movement of a tooth with a history of dentoalveolar trauma. Such teeth are more susceptible to pulp necrosis, pulp canal obliteration, resorption (with or without ankylosis), and alveolar bone loss.</p><p><strong>Objective: </strong>This article aims to provide orthodontic practitioners with a clear and accessible guide to managing patients presenting with trauma or a history thereof.</p><p><strong>Materials and method: </strong>A literature review and a synthesis of current recommendations regarding orthodontic management of traumatized permanent teeth or those with a history of trauma were conducted. This work is a narrative review of the literature, with articles included having been consulted between January 1990 and June 2023.</p><p><strong>Results: </strong>Complications from dentoalveolar trauma weaken the tooth and the periodontium, impacting the planning and execution of orthodontic treatment.</p><p><strong>Conclusion: </strong>Knowledge of dental traumatology and its possible consequences helps minimize risks during post-traumatic orthodontic treatment.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 4","pages":"427-437"},"PeriodicalIF":0.0,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147350231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Communications affichées1 présentées lors de la 96e réunion scientifique de la SFODF à Reims du 29 au 31 mai 2025.","authors":"","doi":"10.1684/orthodfr.2026.227","DOIUrl":"https://doi.org/10.1684/orthodfr.2026.227","url":null,"abstract":"","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"97 1","pages":"121-132"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147794113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Personality and patient satisfaction after orthodontic treatment","authors":"Zahra Ines Sadroudine, Inés Díaz-Renovales, Iván Nieto-Sánchez","doi":"10.1684/orthodfr.2025.204","DOIUrl":"10.1684/orthodfr.2025.204","url":null,"abstract":"<p><strong>Introduction: </strong>The aim of this study is to examine, among adult patients who had completed orthodontic treatment, the relationship between treatment satisfaction and personality type.</p><p><strong>Material and methods: </strong>This was an observational, comparative, cross-sectional study based on a survey conducted during the first three months following the completion of active orthodontic treatment. The required sample size was calculated in advance. A total of 74 patients (30 men and 44 women aged 18 to 40) were included: 55 with metal multi-bracket appliances, 9 with ceramic multi-bracket appliances, and 10 with clear aligners. Patient satisfaction was assessed using the questionnaire developed by Rojas-Garcia, et al. Personality was evaluated using the Big Five Inventory test. The study was approved by the University Ethics Committee (No. 2021_11/107). To compare mean values among different patient groups, Student's t-test and one-way ANOVA were used when the variables were normally distributed; otherwise, Mann-Whitney and Kruskal-Wallis tests were used.</p><p><strong>Results: </strong>A relationship was found between personality traits and patient satisfaction following orthodontic treatment. The more extroverted, agreeable, and conscientious a patient was, the more satisfied they were with the treatment (p < 0.05). However, neuroticism, gender, treatment type, and initial case complexity were not associated with patient satisfaction (p > 0.05). Patient satisfaction also decreased with age (p > 0.05).</p><p><strong>Discussion: </strong>Although participants may have been subject to central tendency or social desirability bias, this study provides insights into the correlation between personality traits and satisfaction with orthodontic treatment. Further studies should consider not only the initial malocclusion but also the degree of improvement achieved.</p><p><strong>Conclusion: </strong>Personality appears to influence patient satisfaction at the end of orthodontic treatment.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 3","pages":"337-346"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claire Divry, Sarah Millot-Guard, Sarah Gebeile-Chauty
{"title":"Bacteremia and orthodontics: Management of patients with and without risk factors for infective endocarditis","authors":"Claire Divry, Sarah Millot-Guard, Sarah Gebeile-Chauty","doi":"10.1684/orthodfr.2025.205","DOIUrl":"https://doi.org/10.1684/orthodfr.2025.205","url":null,"abstract":"<p><strong>Introduction: </strong>Cases of focal oral bacterial infections - including infective endocarditis - have been reported during orthodontic treatment in patients with no previous medical history. This raises the question of whether orthodontic treatment is responsible for the development of these infections.</p><p><strong>Objective: </strong>The aim of this narrative literature review was to determine whether or not bacteremia, directly or indirectly related to orthodontic treatment, is present and what precautions should be taken in orthodontic treatment of patients with and without risk of infective endocarditis.</p><p><strong>Material and methods: </strong>A narrative literature review was carried out using two keyword searches on PubMed.</p><p><strong>Results: </strong>Transient bacteremia may occur during everyday activities and dental procedures. This bacteremia is influenced by factors linked to the invasiveness of the procedure and the patient's periodontal indices. In patients at risk of infective endocarditis, the new French professional recommendations do not contraindicate any orthodontic procedure. In patients at high risk of infective endocarditis, stripping, corticotomies, orthodontic exposure of impacted teeth, and insertion and removal of bone anchors require antibiotic prophylaxis. The following procedures are contraindicated in these patients: pulpectomy of temporary teeth, pulp capping of mature permanent teeth, use of bone regeneration membranes, and conservative treatment of peri-implantitis.</p><p><strong>Discussion: </strong>Any procedure, whether therapeutic or not, generates bacteremia, which is often minimal and depends on the procedures performed. Orthodontic appliances, because of the length of time they are worn and the difficulty of maintaining good oral hygiene, are likely to generate an additional bacteremia which, in principle, should have no consequences in a healthy patient. Although orthodontic procedures are relatively frequent, studies are rare and often have a low level of evidence.</p><p><strong>Conclusion: </strong>The role of the orthodontist is to identify the patient's level of risk, to educate and motivate the patient in oral hygiene, and to apply the precautionary measures set out in the new HAS recommendations for patients at risk of infective endocarditis.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 3","pages":"263-284"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adherence in orthodontics: A review of the literature","authors":"Emma Fotso, Sarah Gebeile-Chauty","doi":"10.1684/orthodfr.2025.206","DOIUrl":"https://doi.org/10.1684/orthodfr.2025.206","url":null,"abstract":"<p><strong>Introduction: </strong>The aim of this study was to investigate the factors influencing patient adherence in orthodontics.</p><p><strong>Material and methods: </strong>A literature review was conducted using keywords on PubMed, focusing on randomized clinical trials.</p><p><strong>Results: </strong>In total, 31 articles were included. Adults appeared to be more cooperative than adolescents, as were patients of higher socioeconomic status. The influence of gender on adherence remains open to debate. Appointment reminders seem to provide substantial benefit, at least in the short term. The most effective communication is multimodal - oral, written, and participatory. Pain management and adherence to the prescribed treatment duration also play a role. With removable devices, whether during the active phase or retention, a tendency to overestimate wearing time and suboptimal adherence were reported.</p><p><strong>Discussion: </strong>The difficulty of evaluation lies in the many forms that adherence can take. Some factors are straightforward and easily quantifiable, such as wearing time of an appliance or auxiliary device - either self-reported or measured electronically via sensors - while others are more difficult to assess and require the use of indirect indicators reflecting the consequences of poor adherence. As a result, potential biases abound. The Hawthorne effect and the novelty effect further complicate the evaluation of adherence.</p><p><strong>Conclusion: </strong>Identifying uncooperative or non-cooperative patients - both at the initial assessment (motivation, hygiene, etc.) and throughout treatment (missed appointments, late arrivals, breakages/detachments, etc.) - is essential and can help orthodontists adapt their approach and implement measures to optimize patient adherence.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 3","pages":"321-335"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improving medical data collection practices in a university hospital department of dentofacial orthopedics","authors":"Gaëlle Dol, Delphine Soulier-Peigue, Olivier François, Emmanuel Nicolas, Martine Hennequin","doi":"10.1684/orthodfr.2025.203","DOIUrl":"https://doi.org/10.1684/orthodfr.2025.203","url":null,"abstract":"<p><strong>Introduction: </strong>Improving professional practice is a quality assurance process that aims to control practices by reference to evidence-based studies and academic standards. This study describes the method developed in a university hospital setting to improve the collection of clinical data in orthodontics.</p><p><strong>Material and methods: </strong>The Deming cycle method (PDCA) was used.</p><p><strong>Results: </strong>1) \"PLAN\" phase: A literature search and two national and local surveys were conducted to describe clinical data collection practices in orthodontics; 2) \"DO\" phase: A list of indicators to characterize malocclusions and dysmorphoses, as well as their functional and aesthetic effects, was drawn up in a digital format, then used in the orthodontic department for five months; 3) \"CHECK\" phase: The use and limitations of this tool were analyzed; 4) \"ACT\" phase: The form for \"Evaluation of Malocclusions and Dysmorphoses and their Aesthetics and Functionals Effects\" was finalized and the procedures for its implementation were specified.</p><p><strong>Discussion: </strong>The EPIEF MaloDys tool allows us to identify the existence of malocclusions or dysmorphoses and their aesthetic and functional effects, but its implementation may encounter some resistance to change.</p><p><strong>Conclusion: </strong>This study contributes to the harmonization of orthodontics clinical data for clinical, educational, and research purposes.</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 3","pages":"285-297"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retrospective epidemiological study of orthognathic surgery in the maxillofacial surgery department at Pitié-Salpêtrière University Hospital","authors":"Elke Tadault, Adeline Kerbrat, Guillaume Gautier","doi":"10.1684/orthodfr.2025.201","DOIUrl":"https://doi.org/10.1684/orthodfr.2025.201","url":null,"abstract":"<p><strong>Introduction: </strong>Orthognathic surgery practices depend on patient characteristics, which may vary from one country to another, and they may also evolve with new techniques and developments.</p><p><strong>Objective: </strong>The aim of this study is to describe the epidemiological characteristics of patients and orthognathic surgical procedures performed in the maxillofacial surgery department at Pitié-Salpêtrière University Hospital (Paris, France).</p><p><strong>Material and methods: </strong>This was a retrospective study covering the period from January 2017 to December 2020. All patient records from this period were reviewed. The following data were collected: demographic characteristics (age at the time of surgery, gender), type of dentofacial deformity (Angle class I, II, or III, transverse and vertical facial dimensions), and type of surgical procedure.</p><p><strong>Results: </strong>A total of 667 patient records were included. Analysis of the parameters studied showed a female predominance (60.82%) with a mean age of 27.9 years. The most common Angle dental class was class II (56.4%) followed by class III (35.4%). Long-face patients accounted for 47.86% of the sample, short-face 41.61%, and balanced-face 10.53%, with 44.4% exhibiting facial asymmetry. A reduced transverse dimension was observed in 22.12% of cases. The most common orthognathic procedure was maxillomandibular osteotomy (56.08%), followed by mandibular osteotomy (20.7%), and maxillary osteotomy (19.12%). Overall, 23.4% of patients underwent dental extractions during surgery and 4.4% of records reported reinterventions (revision surgery, hardware removal, or pseudarthrosis repair).</p><p><strong>Discussion: </strong>Class II malocclusion is common in the French population and is frequently encountered in orthodontic-surgical protocols. According to the literature, maxillomandibular surgery appears to be on the rise.</p><p><strong>Conclusion: </strong>The results of this four-year retrospective study reveal a predominance of young, female patients. Class II malocclusion was the most frequent, and maxillomandibular surgery was the most commonly performed procedure. Given the lack of epidemiological data, further studies should be conducted to assess variations in surgical practices across different geographic regions and types of institutions (private, public, etc.).</p>","PeriodicalId":101415,"journal":{"name":"L' Orthodontie francaise","volume":"96 3","pages":"311-320"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}