{"title":"The straight-wire appliance: Individualization versus customization","authors":"Will A. Andrews","doi":"10.1016/j.ejwf.2023.06.004","DOIUrl":"10.1016/j.ejwf.2023.06.004","url":null,"abstract":"<div><p>The straight-wire appliance is an individualized, fully-programmed appliance system that has been in clinical use since the early 1970s. A study of tooth positions in individuals with naturally occurring harmonious occlusions led to the discovery of the Six Keys to Normal (Optimal) Occlusion which provided data for bracket features and prescription values incorporated into the straight-wire appliance. It was based on the notion that tooth anatomy, morphology, and optimal positions were alike enough among individuals, regardless of age, sex, or race to justify using prefabricated brackets with average prescription values. New technologies have led to advancements in appliance customization. Customized brackets can be made-to-order with one-of-a-kind prescription values and bracket base contours that fit precisely to the morphologic characteristics of the teeth. If costs and material qualities were comparable, would treatment efficiency or treatment outcomes be superior when using a customized appliance compared with a prefabricated straight-wire appliance? If not, why not?</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 4","pages":"Pages 166-172"},"PeriodicalIF":2.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10314909","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":"The efficacy of anterior open bite closure when using Invisalign's optimized extrusion versus conventional attachments","authors":"Hamad Burashed","doi":"10.1016/j.ejwf.2023.04.001","DOIUrl":"10.1016/j.ejwf.2023.04.001","url":null,"abstract":"<div><h3>Background</h3><p>Clear aligners are reported to control anterior open bites. Despite this, anterior extrusion remains difficult with aligners. Optimized extrusion attachments on incisors may facilitate anterior extrusion to correct open bite with Invisalign. The aim of this retrospective study was to compare the efficacy of anterior open bite correction with Invisalign when using optimized extrusion versus conventional attachments.</p></div><div><h3>Methods</h3><p>This was a retrospective cohort study. The pre- and post-treatment intraoral scans of patients with anterior open bite treated with Invisalign aligners were assessed. Patients were divided into two groups: group A, patients with horizontal conventional attachments and group B, patients with optimized extrusion attachments on incisors. The pre and post-treatment overbite and the planned overbite change were measured and compared between the groups. Descriptive statistics were computed and statistical significance was set at <em>P</em> < 0.05.</p></div><div><h3>Results</h3><p>A total of 86 patients were included. Both groups showed significant increases in overbite, but there was no difference in the open bite correction efficacy in patients with conventional versus optimized attachments. Shorter treatment times for open bite closure were reported for patients with optimized attachments.</p></div><div><h3>Conclusions</h3><p>Anterior open bite can be corrected regardless of the attachment type. Optimized attachments are no more effective than using conventional attachments in incisor extrusion to correct open bite. Patients with anterior open bite with optimized attachments observed shorter treatment times for overbite correction. When correcting anterior open bite with Invisalign, the attachment type does not improve the success rate. Optimized extrusion attachments on incisors may shorten the treatment time compared to conventional attachments.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 112-117"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9620706","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":"Applications and effectiveness of teledentistry in orthodontic practice during the COVID-19 restrictions","authors":"Emre Kayalar , Berkan Küçükkurt","doi":"10.1016/j.ejwf.2023.04.002","DOIUrl":"10.1016/j.ejwf.2023.04.002","url":null,"abstract":"<div><h3>Background</h3><p>The aim of this study was to identify the areas of application for teledentistry and analyze its effectiveness in orthodontic practice during the COVID-19 pandemic.</p></div><div><h3>Methods</h3><p> <!-->A total of 233 patients (159 women, 74 men) receiving orthodontic treatment were included. During the COVID-19 restriction period, patients were given teledentistry appointments. During these video conferences, remote orthodontic checkups were performed by one orthodontist, who asked the patients for photos or videos. The applications carried out during the interviews were recorded, classified, and analyzed. In addition, clinical emergency patients were identified. After the teledentistry consultations, two different questionnaires were presented to the patients, depending on their attendance at teledentistry appointments, and the results were statistically evaluated.</p></div><div><h3>Results</h3><p> <!-->In all, 21.25% of the patients were identified as having clinical emergencies, including injury because of damage from brackets and wires; 10% of them reported bracket breakage; 17.5% were encouraged to use intermaxillary elastics; and 3.75% were in pain. However, 50% of them were found to be unproblematic. A total of 91% of the participants in the survey reported that online checkups were sufficient to understand and resolve their symptoms. However, 28% wanted to communicate with orthodontists by video call or with photos instead of meeting face to face (65.5%) when unexpected problems arose during the COVID-19 pandemic.</p></div><div><h3>Conclusions</h3><p> <!-->Teledentistry can be an effective method for motivating patients who are undergoing orthodontic treatments that require cooperation. It is also an effective way of understanding the patients’ symptoms and reducing the risk of cross-infection by identifying patients who will require face-to-face emergency treatment during pandemics.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 118-124"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10174472/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9618263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inspired and motivated: The benefits of attending the annual meeting","authors":"Vinod Krishnan (Editor-in-Chief)","doi":"10.1016/j.ejwf.2023.05.004","DOIUrl":"10.1016/j.ejwf.2023.05.004","url":null,"abstract":"","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 91-92"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9565338","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}
Paulo Guilherme Bittencourt Marchi , Juan Francisco Mariscal Muñoz , Luís Antônio de Arruda Aidar , Luiz Carlos Marchi , Gladys Cristina Dominguez , Dirceu Barnabé Raveli
{"title":"Dental changes induced by a modified Herbst appliance followed by fixed appliances: A digital dental model analysis","authors":"Paulo Guilherme Bittencourt Marchi , Juan Francisco Mariscal Muñoz , Luís Antônio de Arruda Aidar , Luiz Carlos Marchi , Gladys Cristina Dominguez , Dirceu Barnabé Raveli","doi":"10.1016/j.ejwf.2023.05.002","DOIUrl":"10.1016/j.ejwf.2023.05.002","url":null,"abstract":"<div><h3>Background</h3><p>Herbst therapy is an effective treatment for Class II malocclusions. However, the maintenance of the effects after fixed appliances treatment remains questionable. This retrospective study aimed to assess, using digital dental models, the sagittal and transverse dental arch changes in young patients during two Class II Division 1 treatment phases, first with modified Herbst appliance (HA) and then with fixed appliances.</p></div><div><h3>Methods</h3><p>The treated group (TG) comprised 32 patients (17 boys, 15 girls; mean age, 12.85 ± 1.16 years) treated with HA and fixed appliances. The control group comprised 28 patients (13 boys, 15 girls; mean age, 12.21 ± 1.35 years) with untreated Class II malocclusions. Digital models were obtained immediately before and after HA therapy and after fixed appliances. Data were statistically analyzed.</p></div><div><h3>Results</h3><p>Compared with the control group, the TG showed an increase in maxillary and mandibular arch perimeters and in intercanine and intermolar arch widths, a decrease in overjet and overbite, and an improvement in canine and molar relationships. In the time after HA therapy until the end of fixed appliances treatment, the TG showed a decrease in maxillary and mandibular arch perimeters, overjet, upper and lower intermolar widths; an increase in molar Class II relationship; and no changes in canine relationship, overbite, and upper and lower intercanine widths.</p></div><div><h3>Conclusions</h3><p>In this sample of patients treated with HA, on average, there was an improvement in the Class II relationship, which seemed to remain after fixed appliances. The transverse dental changes achieved in HA phase relapsed after treatment with fixed appliances.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 131-137"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9990356","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":"Quantifying the efficacy of overbite reduction in patients treated with clear aligners using optimized versus conventional attachments","authors":"Hamad Burashed , Rami El Sebai","doi":"10.1016/j.ejwf.2023.03.003","DOIUrl":"10.1016/j.ejwf.2023.03.003","url":null,"abstract":"<div><h3>Background</h3><p>Deep overbite has been shown to be difficult to correct with clear aligners. Optimized deep bite attachments are reported to facilitate deep bite correction with aligners. The aim of this retrospective study was to quantify the efficacy of deep bite correction with aligners when using optimized versus conventional attachments.</p></div><div><h3>Methods</h3><p>This was a retrospective cohort study. The pretreatment and post-treatment intraoral scans of patients with deep overbite treated with Invisalign clear aligners were accessed. Patients were divided into two groups: group A, patients treated with conventional attachments, and group B, patients treated with optimized attachments. Pre and post-treatment overbite and the planned overbite reduction were measured and compared between groups. Descriptive statistics were computed, and statistical significance was set at <em>P</em> < 0.05.</p></div><div><h3>Results</h3><p>Seventy-eight patients were included. There was no statistically significant difference in overbite reduction between patients who had conventional versus optimized attachments. The amount of overbite reduction observed post-treatment was found to be no more than 33-40% of the planned amount of overbite reduction across all patients and groups.</p></div><div><h3>Conclusions</h3><p>Deep overbite correction with aligners remains difficult regardless of the type of attachment used. Optimized attachments are no more effective than using conventional attachments in reducing deep overbite. The amount of overbite reduction expected with clear aligners is significantly lower than the planned overbite reduction.</p></div><div><h3>Practical Implications</h3><p>When correcting deep bite with clear aligners, the attachment type does not improve the success rate. Clinicians should plan to overcorrect deep bite reduction to expect only 33% to 40% of their planned final overbite to be actually expressed.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 105-111"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9608715","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}
Dina G. Hassan , Maha El Tantawi , Mohamed G. Hassan
{"title":"The relation between social media mentions and academic citations in orthodontic journals: A preliminary study","authors":"Dina G. Hassan , Maha El Tantawi , Mohamed G. Hassan","doi":"10.1016/j.ejwf.2023.05.003","DOIUrl":"10.1016/j.ejwf.2023.05.003","url":null,"abstract":"<div><h3>Background</h3><p>To study the relation between social media mentions and academic citations for articles published in peer-reviewed orthodontic journals.</p></div><div><h3>Methods</h3><p>Articles published in early 2018 in seven peer-reviewed orthodontic journals were retrospectively analyzed in September 2022. Citation counts of the articles were evaluated using two databases: Google Scholar (GS) and Web of Science (WoS). The Altmetric Attention Score, Twitter, Facebook mentions, and Mendeley reads were tracked using the Altmetric Bookmarklet. The citation counts and social media mentions were correlated using Spearman rho.</p></div><div><h3>Results</h3><p>A total of 84 articles were identified during the initial search; 64 (76%) were original studies and systematic review articles and included in the analysis. A total of 38% of the articles had at least one mention on social media. Over the study period, the average number of citations of the articles mentioned on social media was higher than the non-mentioned articles for GS and WoS, respectively. Moreover, significant positive correlations existed between the Altmetric Attention Score and the number of citations in GS and WoS (r<sub>s</sub> = 0.31, <em>P</em> = 0.001 and r<sub>s</sub> = 0.26, <em>P</em> = 0.04).</p></div><div><h3>Conclusions</h3><p>Social media mentions and citations of articles published in peer-reviewed orthodontic journals are correlated, with a clear difference in the number of citations in articles mentioned on social media versus those not mentioned, indicating possible increased reach of articles disseminated on social media.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 125-130"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9990353","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}
Kelsea Y. Ashton , Shuying S. Jiang , Mary Anne Melo , Jose A. Bosio
{"title":"International investigation on temporary anchorage device use: A survey of orthodontists","authors":"Kelsea Y. Ashton , Shuying S. Jiang , Mary Anne Melo , Jose A. Bosio","doi":"10.1016/j.ejwf.2023.04.003","DOIUrl":"10.1016/j.ejwf.2023.04.003","url":null,"abstract":"<div><h3>Background</h3><p>This study investigates characteristics of temporary anchorage devices (TADs) use by surveying a sample of international orthodontists. Furthermore, the survey investigates the stability, insertion technique, and failure rate of TADs and professionals’ experience in residency, and it also attempts to establish guidelines for its use in everyday practice.</p></div><div><h3>Methods</h3><p>A 19-question survey was sent to orthodontists worldwide asking opinion-based, case-specific, and placement technique questions regarding TADs. Results were collected from 251 survey respondents. The country/regions of practice and length of time practicing orthodontics were the independent variables.</p></div><div><h3>Results</h3><p>Survey respondents indicated that most orthodontists rarely or sporadically use TADs. Significant differences were also found for TAD utilization purposes, sizes, and placement techniques among different countries/regions and for failure rates (1 or more of the last 6 TADs placed failed—61.6%). A significant difference was found in how many TADs orthodontists placed in residency versus private practice (56% vs. 15%) in relation to how long they have been practicing, but it did not greatly affect the frequency of use, mechanics, or placement technique.</p></div><div><h3>Conclusions</h3><p>The frequency of TAD use is similar in many different countries and among different age groups. Although the collected responses suggested significant differences among respondents from different countries, the variability of results for TAD use worldwide prevent the establishment of clear guidelines.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 3","pages":"Pages 93-104"},"PeriodicalIF":2.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9621191","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":"Evaluation of facial profile characteristics of aesthetically pleasing Iranian faces","authors":"Saharnaz Esmaeili , Nazanin Malek Mohammadi , Sarvin Khosravani , Ladan Eslamian , Saeed Reza Motamedian","doi":"10.1016/j.ejwf.2023.02.001","DOIUrl":"10.1016/j.ejwf.2023.02.001","url":null,"abstract":"<div><h3>Background</h3><p>The objective of this study was to assess the soft and hard tissue cephalometric indexes of facial profiles perceived as attractive.</p></div><div><h3>Methods</h3><p>A total of 360 individuals (180 females and 180 males) with well-balanced faces and no history of orthodontic or cosmetic procedures were selected. Twenty-six raters (13 females and 13 males) rated the attractiveness of profile view photographs of the enrolled individuals. According to the total score, the rated top 10% of photographs were selected as attractive. Overall, 81 (40 soft tissue and 41 hard tissue) cephalometric measurements were made on traced cephalograms of the attractive faces. The obtained values were compared with orthodontic norms and attractive Whites using Bonferroni-corrected <em>t</em> tests. They were also analyzed regarding age and sex effects using a two-way ANOVA test.</p></div><div><h3>Results</h3><p>Significant differences were found between the cephalometric measurements of attractive profiles and orthodontic norms. Among the most important parameters were greater H angle and basic upper lip thickness in attractive males, and greater facial convexity and smaller nose prominence in attractive females. Also, attractive male participants had greater soft tissue chin thickness and subnasale perpendicular to the upper lip compared with attractive females.</p></div><div><h3>Conclusions</h3><p>According to the results, males with a normal profile and thicker protruded upper lips were perceived as more attractive. Also, females with a slightly convex profile, deeper mentolabial sulcus, less prominent nose, and shorter maxilla and mandible were perceived as more attractive.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 2","pages":"Pages 76-89"},"PeriodicalIF":2.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9419622","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}
Sertac Aksakalli , Ufuk Ok , Cagri Temel , Demet Sezgin Mansuroglu , Yesim Muge Sahin
{"title":"The mechanical testing and performance analysis of three-dimensionally produced lingual retainers","authors":"Sertac Aksakalli , Ufuk Ok , Cagri Temel , Demet Sezgin Mansuroglu , Yesim Muge Sahin","doi":"10.1016/j.ejwf.2022.12.003","DOIUrl":"10.1016/j.ejwf.2022.12.003","url":null,"abstract":"<div><h3>Background</h3><p>Introducing three-dimensional (3D) printing has opened new visions in the orthodontic field. This research evaluates three-dimensionally produced orthodontic retainers and their future possible uses. For this purpose, in vitro tests were performed for these groups, including bond strength, failure analysis, discoloration, and biodegradation.</p></div><div><h3>Methods</h3><p>A total of 30 specimens (n = 30), lower incisor human teeth, were randomly divided into three groups for a bond strength failure analysis (for each group n = 10). In the experimental groups, lingual retainers were fabricated using 3D systems (group 1 with 3D dental pen and group 2 with 3D-printed). In the control group (group 3), the retainer system was a combination of a wire and composite, which is being used worldwide. A total of 30 specimens (n = 30) from the 3D dental pen and 3D-printed for discoloration and biodegradation tests were divided into three groups (water, tea, and coffee). Data were analyzed using the Mann-Whitney <em>U</em> test, ANOVA, and chi-square test.</p></div><div><h3>Results</h3><p>For all parameters tested, significant differences were determined among groups. The 3D pen group had the highest score for bond strength, whereas discoloration differed significantly.</p></div><div><h3>Conclusions</h3><p>According to the limitations of this research, 3D-printed retainers have the potential for clinical use in the near future.</p></div>","PeriodicalId":43456,"journal":{"name":"Journal of the World Federation of Orthodontists","volume":"12 2","pages":"Pages 64-71"},"PeriodicalIF":2.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9409862","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}