Bruno Moreira das Neves , Rhita Cristina Cunha Almeida , Roberto Prado , Denise Carvalho , Felipe de Assis Ribeiro Carvalho
{"title":"Treatment of ectopic maxillary second molars associated with buccal crossbite of first molars using a Halterman appliance and an inverted hyrax expander","authors":"Bruno Moreira das Neves , Rhita Cristina Cunha Almeida , Roberto Prado , Denise Carvalho , Felipe de Assis Ribeiro Carvalho","doi":"10.1016/j.xaor.2025.11.007","DOIUrl":"10.1016/j.xaor.2025.11.007","url":null,"abstract":"<div><div>This case report presents the orthodontic management of a 14-year-old female patient with Class I malocclusion, ectopic eruption of the permanent maxillary second molars, and a complete buccal crossbite of the first molars. The ectopic eruption was addressed using a Halterman appliance, whereas the buccal crossbite was corrected with an inverted hyrax expander, which increased the maxillary intermolar width. Further occlusal refinement was achieved with fixed orthodontic appliances. The treatment outcomes included the establishment of proper transverse molar relationships, improved smile esthetics, and enhanced overbite and overjet. The results were stable over a 43-month follow-up, demonstrating the effectiveness of a nonextraction approach in managing this complex malocclusion.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 99-114"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636702","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 management of an anterior alveolar bone defect in an adult using light intermittent forces","authors":"Wael Kanaan","doi":"10.1016/j.xaor.2025.12.003","DOIUrl":"10.1016/j.xaor.2025.12.003","url":null,"abstract":"<div><div>Patients with missing teeth and severe bony defects are challenging for the orthodontist, the oral surgeon, and the restorative dentist, especially if the defect is not treated with a bone graft. This case report presents a female patient, aged 30 years, with 5 missing teeth and a severe bony defect in the area of the maxillary right central incisor (UR1) caused by a failed implant. The treatment plan was designed to minimize the financial burden on the patient while providing her with a stable, long-term solution. Using light intermittent forces, the maxillary right lateral incisor (UR2) was moved into the UR1 area to eliminate the bony defect, while generating bone behind it for implant placement. Periodic periapical radiographs were taken to monitor root resorption and the integrity of the periodontal ligament during treatment. An implant was placed in the UR2 area during the orthodontic treatment, and the implant crown was delivered the same day orthodontic treatment was concluded. The UR2 was restored with a composite filling to resemble a maxillary central incisor. All posterior spaces were closed. After 35 months of treatment, the patient achieved an improved smile with a Class I canine relationship and a balanced occlusion without spaces. The results observed in this patient suggested the possibility of moving a healthy tooth into a severe bony defect without the need for bone grafting by using light intermittent forces.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 2","pages":"Pages 115-128"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636703","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":"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}