{"title":"Duration of appointment intervals for patients with fixed orthodontic appliances: A scoping review","authors":"Ziad M. Montasser , Mona A. Montasser","doi":"10.1016/j.xaor.2026.01.006","DOIUrl":"10.1016/j.xaor.2026.01.006","url":null,"abstract":"<div><h3>Introduction</h3><div>Fixed orthodontic treatment is unique for its long duration, which is partly influenced by the lengthy intervals between appointments. This review aimed to map and critically appraise the available scientific evidence concerning the duration of appointment intervals for patients with fixed orthodontic appliances.</div></div><div><h3>Methods</h3><div>An electronic search of MEDLINE/PubMed, Scopus, Web of Science, and Google Scholar databases for prospective or retrospective clinical trials published till the end of December 2024 was carried out. After removing duplicates, studies that did not investigate appointment intervals were excluded based on their titles and abstracts. Then, the full texts of the potentially eligible studies were read in full by 2 reviewers to apply the eligibility criteria. The required information was extracted from the included studies.</div></div><div><h3>Results</h3><div>The electronic search among the databases located a total of 2548 articles. A careful reading of the titles and abstracts to assess the relevance of the studies left 3 studies, of which 2 studies were included in the review. The 2 studies investigated the impact of varying appointment intervals on orthodontic treatment duration. One study examined scheduling patients at a minimum of 6-week intervals and reported an average treatment time of 22.01 months, which was considered not significantly longer than the treatment duration observed with the standard 4-week intervals schedule. The other study compared shorter intervals and found that patients seen every 2 weeks had a shorter average treatment duration (22.05 ± 5.86 months) compared with those seen every 4 weeks (28.06 ± 7.51 months).</div></div><div><h3>Conclusions</h3><div>Limited-quality evidence showed that compared with the standard 4-week orthodontic appointment intervals, 6-week intervals did not increase treatment duration, whereas 2-week intervals shortened it by approximately 6 months. Future randomized clinical trials are crucial for generating high-quality evidence and supporting strong clinical recommendations.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 81-88"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636700","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":"Comprehensive treatment approach for condylar hyperplasia and mandibular crowding with custom lingual braces and 2-jaw surgery: A 10-year follow-up","authors":"Chung How Kau","doi":"10.1016/j.xaor.2025.12.001","DOIUrl":"10.1016/j.xaor.2025.12.001","url":null,"abstract":"<div><div>This clinical article reports on the 10-year orthodontic retention of a female patient who initially presented with condylar hyperplasia and facial asymmetry. In her original presentation, she had a skeletal and dental Class II malocclusion with significant mandibular crowding, and her maxillary canines were not present. Her mandibular dental midline was 4 mm to the left of the maxillary dental midline. In addition, her mandibular chin point was deviated 5 mm to the left of the midsagittal plane, resulting in a significant cant of the occlusal plane when viewed from the frontal photographs. Three-dimensional cone beam computerized tomography imaging revealed a hyperplastic condyle on the patient’s right jaw. The orthodontic treatment was performed with custom lingual braces and clear brackets. The orthognathic surgery was planned using virtual surgical planning. Her skeletal discrepancy was corrected with a LeFort I maxillary osteotomy and bilateral sagittal split osteotomies to the mandible. Postsurgical orthodontics was carried out to settle and finalize the occlusion. Her orthodontic retention comprised fixed retainers from the laterals to laterals in the maxillary dentition and from canine to canine in the mandibular dentition. In addition, she wore pressure-formed Essix retainers at night. The patient was very pleased with the clinical outcome and the longevity of the retention protocol.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 148-150"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636705","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}
Zixiang Dai , Minjia Zhu , Qinrou Zhang , Le Xiao , Xiaofeng Huang , Ke Zhang
{"title":"Treatment of an impacted mandibular first molar with a dentigerous cyst and uprighting of a mesially tipped second molar","authors":"Zixiang Dai , Minjia Zhu , Qinrou Zhang , Le Xiao , Xiaofeng Huang , Ke Zhang","doi":"10.1016/j.xaor.2026.01.005","DOIUrl":"10.1016/j.xaor.2026.01.005","url":null,"abstract":"<div><div>Impaction of thea mandibular first molar caused by a dentigerous cyst is a rare condition. When confronting patients with complex cases, management of the cyst and orthodontic traction requires meticulous planning and staged treatment protocols to ensure optimal outcomes. This case report describes the successful multidisciplinary treatment of an 11-year-old male with a Class II skeletal relationship, an impacted mandibular right first molar associated with a dentigerous cyst, and a mesially tipped mandibular right second molar. The treatment approach included surgical exposure, cyst decompression, orthodontic traction, gingivectomy, and premolar extraction orthodontic treatment. Posttreatment outcomes demonstrated the preservation of mandibular molars, the establishment of a Class I molar relationship, and an improved facial profile.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 137-147"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636734","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}
Xin Yang , Yichen Zhao , Zhenyan Xie , Zisheng Tang , Bing Fang , Niansong Ye
{"title":"A digital customized self-ligating orthodontic bracket system","authors":"Xin Yang , Yichen Zhao , Zhenyan Xie , Zisheng Tang , Bing Fang , Niansong Ye","doi":"10.1016/j.xaor.2026.01.003","DOIUrl":"10.1016/j.xaor.2026.01.003","url":null,"abstract":"<div><div>This report aimed to present a digital customized self-ligating orthodontic bracket that incorporated a virtual dental patient, digital setup, customized archwire, customized brackets and tubes, and an indirect bonding technique. Digital models of patients were obtained through intraoral scanning, cone-beam computed tomography scanning, and facial scanning technologies, and virtual patient models were established through artificial intelligence and image fusion technology. Customized orthodontic appliances were designed using digital software according to the virtual patient. Customized brackets, archwires, and indirect bond jigs were manufactured using computer numerical control and 3-dimensional printing technology. Therefore, customized orthodontic appliances can contribute to achieving precise orthodontic treatment outcomes. Finally, we confirmed the potential feasibility of the customized self-ligating bracket system through a case.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 89-98"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636701","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":"Orthodontic treatment of mandibular agenesis with maxillary premolar autotransplantation","authors":"Ivano Maltoni , Manuela Maltoni , Giorgia Santucci , Carolina Pancari , Luca Lombardo","doi":"10.1016/j.xaor.2026.01.004","DOIUrl":"10.1016/j.xaor.2026.01.004","url":null,"abstract":"<div><div>This case report describes an 8-year-old girl with agenesis of 2 mandibular second premolars, 2 mandibular central incisors, and all third molars. To compensate for the absence of mandibular teeth, the 2 developing maxillary second premolars were autotransplanted into the sites of the missing mandibular second premolars. Radiographs confirmed good transplant attachment, pulp obliteration, and no signs of hemorrhage or edema. Vitality testing yielded a positive result. Fifteen months after autotransplantation, once complete permanent dentition was established, multibracket orthodontic treatment was initiated at the age of 11 years, 8 months. The active treatment lasted 26 months, during which correct overjet and overbite relationships were achieved. This case report highlights autotransplantation as a conservative and effective treatment option for young patients with multiple agenesis.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 129-136"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636704","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":"Clear aligners in North America: Where are we?","authors":"Jae Hyun Park","doi":"10.1016/j.xaor.2026.01.001","DOIUrl":"10.1016/j.xaor.2026.01.001","url":null,"abstract":"","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 1","pages":"Pages 1-2"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102522","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":"Trends among orthodontists: In-office vs commercial clear aligners","authors":"Julia Poirier , Jae Hyun Park , Curt Bay","doi":"10.1016/j.xaor.2025.10.004","DOIUrl":"10.1016/j.xaor.2025.10.004","url":null,"abstract":"<div><h3>Introduction</h3><div>The purpose of this study is to investigate the orthodontic practitioners’ use of in-office vs commercial clear aligners (CAs).</div></div><div><h3>Methods</h3><div>An anonymous electronic survey was distributed to a random sample of practicing members of the American Association of Orthodontists in North America, asking about CA usage and patient selections for in-office and commercial CA.</div></div><div><h3>Results</h3><div>Ninety-five responses were analyzed from 2025 total surveys distributed, yielding a response rate of 4.7%. Ninety-one (95.8%) respondents used a CA system in their practice. Orthodontists preferred using CAs for mild-to-moderate crowding (96.8%) or spacing (80.9%), anterior open bite (73.4%), expansion (64.9%), and sagittal correction (64.9%). A few of them fabricated their aligners in-office (27.4%), with the most in the 36-45 age group (46.2%). Nearly half (49.5%) believed that they would increase their use of in-office CAs in the future, with the most in the 36-45 age group (65.4%). In-office aligner fabrication does increase in-office lab time (60.9%) and doctor’s treatment planning time (47.8%), but also allows for timely delivery of CAs (84.6%) and an increase in doctor control (76.9%).</div></div><div><h3>Conclusions</h3><div>It appears that most of orthodontists in North America are using CA therapy in their practice. Orthodontists agree that not all patients are best treated by CA therapy. Using combination therapy in challenging patients can highlight the benefits of both systems. In-office CAs may be a cost-efficient system that enhances clinician control with decreased turnaround time, producing results similar to those with fixed orthodontic appliances and commercial CAs. In-office CAs are a great option for clinicians, as the system allows for full customization of treatment and complete doctor control; this system may be used more in the future.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 1","pages":"Pages 5-12"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102943","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}
Yi Feng, Yuxuan Wang, Shaoqin Tu, Yiting Shao, Zheng Chen, Hong Ai
{"title":"Two-phase orthodontic treatment of transverse maxillary deficiency and hyperdivergent skeletal Class II Division 2 malocclusion using a rapid maxillary expander and clear aligners in a growing patient","authors":"Yi Feng, Yuxuan Wang, Shaoqin Tu, Yiting Shao, Zheng Chen, Hong Ai","doi":"10.1016/j.xaor.2025.11.003","DOIUrl":"10.1016/j.xaor.2025.11.003","url":null,"abstract":"<div><div>In recent decades, clear aligner therapy, an esthetic and comfortable alternative to conventional fixed appliances, has driven substantial advancements in this treatment modality. This case report describes the treatment of a 9-year-old girl with adenoid and tonsillar hypertrophy who was treated with adenoidectomy, tonsillectomy, and rapid maxillary expansion (RME), followed by clear aligner therapy. The patient, whose chief complaint was her crooked teeth, was diagnosed with a hyperdivergent skeletal Class II, Angle Class II Division 2 malocclusion, transverse maxillary deficiency, mandibular hypoplasia, and obstructive sleep apnea. The adenoidectomy and tonsillectomy were performed to resolve the obstructive sleep apnea, whereas RME, myofunctional therapy (tongue exercises), and clear aligners were used to achieve transverse, vertical, and sagittal control. After 29 months of treatment, the final results showed a satisfactory occlusion with Class Ⅰ canine and molar relationships, proper overbite and overjet, an acceptable maxillomandibular relationship with a counterclockwise rotated mandible, and an esthetic and balanced facial profile. The treatment results remained stable at the 28-month retention follow-up. This patient demonstrates that a combined approach of RME and clear aligner therapy can be effective for treating transverse maxillary deficiency and sagittal mandibular deficiency in growing patients with a hyperdivergent skeletal pattern.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 1","pages":"Pages 42-57"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102947","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}
Sergio Luiz Mota-Júnior , Eduardo Franzotti Sant’Anna , Oscar Mario Antelo , Ahmad Allaham , Orlando Motohiro Tanaka
{"title":"Skeletal Class II correction using Forsus appliance with miniscrew anchorage: A case report","authors":"Sergio Luiz Mota-Júnior , Eduardo Franzotti Sant’Anna , Oscar Mario Antelo , Ahmad Allaham , Orlando Motohiro Tanaka","doi":"10.1016/j.xaor.2025.11.001","DOIUrl":"10.1016/j.xaor.2025.11.001","url":null,"abstract":"<div><div>This case report describes the orthodontic treatment of a 14 year and 2 month old male patient with skeletal Class II malocclusion, mandibular retrusion, and increased overjet. The treatment involved the use of the Forsus appliance combined with mandibular miniscrew anchorage to moderate mandibular incisor proclination and improve facial esthetics. Pre and posttreatment cephalometric measurements were analyzed to assess dentoalveolar changes. The results demonstrated successful correction of the Class II relationship, with an IMPA increase of 7°. A balanced facial profile and stable occlusion were achieved after 30 months of treatment. One-year follow-up records confirmed the stability of dental and facial outcomes. The successful treatment outcome in this patient suggests that the use of Forsus with skeletal anchorage is a reliable and effective approach for correcting Class II malocclusion.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 1","pages":"Pages 32-41"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102944","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}