Journal of Orthodontics最新文献

{"title":"Effect of different lengths of post-curing UV light exposure on the mechanical properties of 3D-printed aligners: An in vitro study.","authors":"Roohi Sobti, Anup Kanase, Vaibhav Misra","doi":"10.1177/14653125251389980","DOIUrl":"10.1177/14653125251389980","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the effect of different durations of post-curing ultraviolet (UV) light exposure on the compressive strength, amount of displacement and water absorbed by direct-printed aligners.</p><p><strong>Design: </strong>An in-vitro randomised control trial.</p><p><strong>Setting: </strong>Orthodontics laboratory in Maulana Azad Institute of Dental Sciences, New Delhi, India.</p><p><strong>Methods: </strong>Dental LT V2 resin was used to print 30 aligners, which were divided into three groups and subjected to different post-print UV light exposures. Each group was subjected to compression loading of 1000 N to evaluate their load vs. displacement behaviour. The amount of water absorbed by aligners in each group was also evaluated. Data were analysed using one-way analysis of variance (ANOVA) and repeated measures ANOVA.</p><p><strong>Results: </strong>The '60-min cure' group bore the maximum mean compressive load (1016.03 ± 37.27 N) and had the least mean displacement (2.87 ± 0.52 mm) and water absorption (0.18 g).The '40-min cure' group did not show significant results for any of the tests carried out.</p><p><strong>Conclusion: </strong>Aligners subjected to 60 min of post-print UV light exposure were the most rigid and had highest compressive strength. Increasing the duration of post-UV light curing reduced the amount of water absorbed by the aligners. Since the '60-min cure' group was excessively rigid, a post-curing duration of 40 min is recommended to provide sufficient flexibility for comfortable daily use and wear.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"370-377"},"PeriodicalIF":1.8,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145438457","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":"Remote appointments in Orthodontics and Oral and Maxillofacial Surgery: Part 1 service evaluation.","authors":"Gurdeep Kaur Hans, Nigel Peter Hunt, Helen Travess","doi":"10.1177/14653125241301452","DOIUrl":"10.1177/14653125241301452","url":null,"abstract":"<p><strong>Objective: </strong>To assess the type, number and outcome of remote appointments in Orthodontics and Oral and Maxillofacial Surgery (OMFS) in one acute hospital trust and to establish whether remote appointments carried out during the Covid-19 pandemic were successful in saving a face-to-face appointment.</p><p><strong>Design: </strong>Service evaluation.</p><p><strong>Setting: </strong>Orthodontic and OMFS departments at Buckinghamshire Healthcare NHS Trust.</p><p><strong>Method: </strong>A retrospective service evaluation was carried out, analysing the types, numbers and outcomes of remote appointments in Orthodontics and OMFS over a nine-month period (March-December 2020) during the Covid-19 pandemic in one hospital trust. Data were collected from the trust online booking system and departmental spreadsheets and recorded on Microsoft^® Excel.</p><p><strong>Results: </strong>A total of 901 remote appointments were analysed, 42% (n = 387) of which were Orthodontic and 58% (n = 523) OMFS. Low failure to attend rates were seen in both specialties (3% (n = 18) OMFS; 6% (n = 21) Orthodontics). Retainer reviews accounted for 83% (n = 315) of all Orthodontic remote appointments and the most common outcome of remote appointments was discharge after attendance (49% n = 189). New patient consultations accounted for 41% (n = 212) of OMFS remote appointments and the most common outcomes were Oral Medicine review (31% n = 162) and discharge following attendance (20% n = 103). Remote platforms saved a follow-up face-to-face appointment in 92% (n = 352) of Orthodontic appointments, compared to 81% (n = 421) for OMFS remote appointments.</p><p><strong>Conclusion: </strong>When appropriately triaged, the majority of remote appointments do save a face-to-face visit, and there is a place for remote platforms in both specialties going forward. However further research is required in the post-pandemic era to ascertain the full long-term applicability of remote Orthodontic and OMFS appointments.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"226-234"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142872380","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":"A new bur for interproximal reduction of anterior teeth.","authors":"Gilad Har-Zion","doi":"10.1177/14653125251358816","DOIUrl":"10.1177/14653125251358816","url":null,"abstract":"<p><p>The use of clear aligners is gaining popularity among orthodontists as well as other dental professionals worldwide. Very frequently, interproximal reduction (IPR) of the enamel in the anterior teeth is required during orthodontic treatment with aligners. The available methods for anterior IPR have some basic inherent disadvantages that can potentially interfere with their daily use. A novel bur intended for use with a high-speed turbine is presented. It was developed specifically for the IPR of anterior teeth. This new design can overcome most of the shortcomings of traditional techniques. It performs IPR effectively, efficiently, safely and without causing patient discomfort.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"255-258"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144742305","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":"Continued Professional Development.","authors":"","doi":"10.1177/14653125251374455","DOIUrl":"https://doi.org/10.1177/14653125251374455","url":null,"abstract":"","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":"52 3","pages":"306-308"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145080996","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":"Meet the Author.","authors":"Sarah Hisham Abu Arqub","doi":"10.1177/14653125251374445","DOIUrl":"https://doi.org/10.1177/14653125251374445","url":null,"abstract":"","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":"52 3","pages":"304"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145081008","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":"Microleakage under metal and ceramic brackets after acid etch or laser surface treatment before bonding: An in vitro study.","authors":"Mohamed Ashraf El Arabi, Nabil Abu Shamaa, Naglaa Shawki Elkilani, Rasha Mohamed Taha","doi":"10.1177/14653125241309654","DOIUrl":"10.1177/14653125241309654","url":null,"abstract":"<p><strong>Aim: </strong>To compare microleakage beneath ceramic and metal brackets prepared with either acid etching or laser conditioning.</p><p><strong>Design: </strong>An in vitro study.</p><p><strong>Setting: </strong>Department of Orthodontics, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.</p><p><strong>Methods: </strong>A total of 40 intact human premolars were selected and divided into four equal groups. The groups received the same adhesive-application procedures with different surface treatments and type of brackets: groups 1 (AM) and 3 (AC) underwent phosphoric acid etching; groups 2 (LM) and 4 (LC) underwent laser enamel conditioning using a Er,Cr:YSGG laser. Metal brackets were then bonded to the teeth in groups 1 (AM) and 2 (LM) and ceramic brackets in groups 3 (AC) and 4 (LC). Subsequently, they were placed in fuchsin dye solution. Each premolar was sectioned longitudinally in the occluso-gingival direction at right angles to the brackets. The dye penetration depth was calculated using a stereomicroscope. Microleakage was measured along the enamel-adhesive interface at each section's gingival and occlusal levels. For group comparisons, the Tukey test was utilised as a post hoc test to determine statistical significance between groups. The independent sample <i>t</i>-test was utilised for comparing both subgroups.</p><p><strong>Results: </strong>The results demonstrated significantly more microleakage under metal and ceramic brackets bonded to enamel prepared with laser conditioning than with acid etching at both the gingival and occlusal surfaces and in total. The AC group exhibited the lowest amount of microleakage, but the LC group demonstrated the highest amount of microleakage.</p><p><strong>Conclusion: </strong>The ceramic bracket group treated with acid etching exhibited the lowest level of microleakage. Microleakage values on the gingival and occlusal surfaces were higher in both bracket types for the laser etched groups.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"259-269"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921245","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":"Cytokine levels in immediate loaded and unloaded mini-screw: A split-mouth randomised clinical trial.","authors":"Mariah Carboni Mendes, Gabriela Leite Pedroso, Paôla Caroline da Silva Mira, Amanda Cunha Regal Castro, Caio Luiz Bitencourt Reis, Maria Bernadete Sasso Stuani","doi":"10.1177/14653125251358815","DOIUrl":"10.1177/14653125251358815","url":null,"abstract":"<p><strong>Objective: </strong>To compare the levels of interleukin (IL)-1 beta (IL-1β), alpha (IL-1α), receptor antagonist (IL-1Ra), IL-10 and IL-13 in peri-mini-screw crevicular fluid (PMCF) between unloaded and immediately loaded mini-screws during orthodontic treatment.</p><p><strong>Design: </strong>Single-centre paired split-mouth controlled trial.</p><p><strong>Participants: </strong>Patients who required at least two mini-screws as a part of their orthodontic treatment at orthodontic clinic of School of Dentistry of Ribeirão Preto, University of São Paulo (USP) were recruited.</p><p><strong>Methods: </strong>A total of 40 mini-screws were inserted into the interradicular alveolar bone in 16 patients. Using the coin toss method, each mini-screw was randomly allocated into one of two groups: a control group of unloaded (n = 20) and a group of immediately loaded mini-screws (n = 20). Immediately postoperatively, a continuous load in the range of 150-200 cN was applied to the mini-screws allocated to the loaded group. The PMCF was collected in four experimental times: immediately postoperatively (and on load time, to mini-screws allocated into the loaded group) and 7, 14 and 21 days postoperatively. Biomarker levels were measured using Multiplex Microsphere Immunoassays and compared between groups and covariates using statistical tests that accounted for multiple observations per participant (alpha =5%).</p><p><strong>Results: </strong>No mini-screws were lost. There was a progressive and statistically significant increase of the biomarker's levels in the two groups during the experimental times (<i>P</i> <0.001). The biomarker levels were significantly higher in the immediately loaded group compared to the unloaded group at all time points (<i>P</i> <0.05), except for IL-10 after 7 days postoperatively.</p><p><strong>Conclusion: </strong>Although all biomarker levels were statistically higher in the immediately loaded group at all experimental time points in comparison with the unloaded group, no mini-screws were lost. This suggests a balanced and normal adaptive bone response to the mechanical stress of immediate loading, with no negative impact on clinical outcomes.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"275-284"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958064","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":"Editorial.","authors":"Jayne Harrison","doi":"10.1177/14653125251374432","DOIUrl":"https://doi.org/10.1177/14653125251374432","url":null,"abstract":"","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":"52 3","pages":"225"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145081014","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":"Remote appointments in orthodontics and oral and maxillofacial surgery: Part 2 clinician perceptions.","authors":"Gurdeep Kaur Hans, Nigel Peter Hunt, Helen Travess","doi":"10.1177/14653125241301450","DOIUrl":"10.1177/14653125241301450","url":null,"abstract":"<p><strong>Objectives: </strong>To assess clinician perceptions of and satisfaction with remote appointments in orthodontics and oral and maxillofacial surgery (OMFS).</p><p><strong>Design: </strong>Cross-sectional questionnaire-based study.</p><p><strong>Setting: </strong>Orthodontic and OMFS departments in six acute NHS hospital Trusts in the UK.</p><p><strong>Participants: </strong>A total of 36 (a mixture of consultants, specialty doctors, registrars and therapists in both orthodontics and OMFS) completed responses were received.</p><p><strong>Method: </strong>Once piloted, questionnaires were disseminated across six hospital Trusts to orthodontic and OMFS clinicians. A combination of face-to-face (F2F) and online dissemination was used.</p><p><strong>Results: </strong>A total of 28 of 36 (77.8%) questionnaires were completed, 75% (n = 21) by orthodontic clinicians and 25% (n = 7) by OMFS clinicians. A 100% (n = 21) response rate was achieved for orthodontic clinicians, compared to a 47% (n = 7/15) response rate for OMFS clinicians. High levels of clinician satisfaction were found for clinician confidentiality; however, concerns remained around patient confidentiality and the inability to conduct a clinical examination. The majority (n = 21, 75%) of clinicians felt that remote appointments had their place in the post-pandemic era, particularly for retainer reviews in orthodontics and biopsy results in OMFS.</p><p><strong>Conclusion: </strong>When appropriately triaged, the majority of remote appointments do save a face-to-face visit, and there is a place for remote platforms in both specialties going forward. However further research is required in the post-pandemic era to ascertain the full long-term applicability of remote orthodontic and OMFS consultations.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"235-244"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142872381","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":"Power arms as adjuncts for root control in lower incisor extraction treatment with clear aligners: A case report.","authors":"Bayan Alyammahi, Abrar Mohammad, Kabir Syed Gyasudeen, Yasmin Youssef, Tommaso Castroflorio, Mauro Farella, Sabarinath Prasad","doi":"10.1177/14653125251358825","DOIUrl":"10.1177/14653125251358825","url":null,"abstract":"<p><strong>Background: </strong>Clear aligner therapy (CAT) has become a popular choice among patients seeking orthodontic treatment. However, CAT is not optimal for certain types of tooth movements. This case report illustrates a hybrid approach combining CAT with power arms to achieve controlled space closure after lower incisor extraction.</p><p><strong>Case presentation: </strong>A fit and healthy man presented with a Class 1 malocclusion on a Class 1 skeletal base with bimaxillary protrusion, slightly increased vertical proportions, and mild crowding in the upper and lower arches. He was concerned about his 'irregular lower front teeth and inability to clean them'.</p><p><strong>Intervention: </strong>Lower incisor extraction treated with clear aligner therapy (CAT).</p><p><strong>Results: </strong>The patient's malocclusion was successfully treated with CAT and the extraction of a lower incisor, achieving satisfactory root parallelism for the teeth adjacent to the extraction space. The patient reported satisfaction with the treatment results.</p><p><strong>Conclusion: </strong>Power arms can be considered a useful adjunct to CAT for minimising unwanted tipping in lower incisor extraction cases. Further research on more complex cases and a larger sample size is warranted to validate the findings of this case report and explore long-term stability.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"245-254"},"PeriodicalIF":1.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862295","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}