AJO-DO clinical companion最新文献

{"title":"Staged crown reduction as an alternative to orthodontic intrusion in advanced periodontitis","authors":"Huanhuan Chen, Yi Fan, Xiaoqiang Liu, Jianxia Hou, Bing Han, Guangying Song","doi":"10.1016/j.xaor.2026.07.005","DOIUrl":"10.1016/j.xaor.2026.07.005","url":null,"abstract":"<div><ul><li><span>•</span><span><div>Staged crown reduction can replace intrusion for elongated incisors in periodontitis.</div></span></li><li><span>•</span><span><div>Light-force mechanics enabled bite opening without iatrogenic root resorption.</div></span></li><li><span>•</span><span><div>Long-term stability required ongoing surveillance for late-onset endodontic complications.</div></span></li></ul></div><div><div>This case report describes the 67-month interdisciplinary management of a 44-year-old male with stage III grade C periodontitis complicated by severe anterior tooth elongation. The treatment comprised 4 phases: initial periodontal stabilization to achieve healthy baseline conditions; staged crown reduction of the elongated maxillary incisors, a procedure selected over orthodontic intrusion to avoid iatrogenic stress on the severely compromised periodontal support and roots; light-force (0.10-0.25 N per tooth) orthodontic correction to achieve proper alignment and occlusion; and definitive prosthodontic rehabilitation with maxillary polymer-ceramic crowns and a mandibular implant-supported crown. Through this combined periodontal-orthodontic-prosthodontic approach, the natural maxillary incisors were successfully preserved, restoring esthetic and functional harmony to the dentition. At the 51-month posttreatment follow-up, periodontal stability was maintained; however, a radicular cyst developed and was successfully managed with surgical enucleation and apicoectomy. This case report demonstrates that staged crown reduction can serve as a bone-preserving component within an interdisciplinary protocol, although long-term vigilance for both periodontal and endodontic complications remains essential.</div></div><div>This case report describes the 67-month interdisciplinary management of a 44-year-old male with stage III grade C periodontitis complicated by severe anterior tooth elongation. The treatment comprised 4 phases: initial periodontal stabilization to achieve healthy baseline conditions; staged crown reduction of the elongated maxillary incisors, a procedure selected over orthodontic intrusion to avoid iatrogenic stress on the severely compromised periodontal support and roots; light-force (0.10-0.25 N per tooth) orthodontic correction to achieve proper alignment and occlusion; and definitive prosthodontic rehabilitation with maxillary polymer-ceramic crowns and a mandibular implant-supported crown. Through this combined periodontal-orthodontic-prosthodontic approach, the natural maxillary incisors were successfully preserved, restoring esthetic and functional harmony to the dentition. At the 51-month posttreatment follow-up, periodontal stability was maintained; however, a radicular cyst developed and was successfully managed with surgical enucleation and apicoectomy. This case report demonstrates that staged crown reduction can serve as a bone-preserving component within an interdisciplinary protocol, although long-term vigil","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 5","pages":"Pages 428-439"},"PeriodicalIF":0.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149162841","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":"Intrusion of an overerupted mandibular molar using a distally extended lingual arch and a lingual mini-implant","authors":"Guanlin Qu, Shan Jin, Miao Chen, Chi Yang, Zhigui Ma","doi":"10.1016/j.xaor.2026.06.006","DOIUrl":"10.1016/j.xaor.2026.06.006","url":null,"abstract":"<div><ul><li><span>•</span><span><div>A lingual and buccal mini-implant system was used to intrude the mandibular molar.</div></span></li><li><span>•</span><span><div>A distally extended lingual arch continued intrusion after buccal mini-implant failure.</div></span></li><li><span>•</span><span><div>Piezosurgery may have facilitated molar intrusion and alveolar bone remodeling.</div></span></li></ul></div><div><div>This case report details the treatment of a 24-year-old male with an overerupted mandibular right second molar caused by the prolonged absence of opposing teeth. The patient presented with swelling and discomfort in the maxillary right posterior region. Clinical examination revealed an odontoma in the posterior maxilla, as well as a dentigerous cyst associated with the mandibular right third molar. Multidisciplinary treatment involved piezosurgery to remove the odontoma and the cyst, followed by bone grafting and molar intrusion. The surgical intervention may have elicited a localized regional acceleratory phenomenon, which may have contributed to subsequent orthodontic molar intrusion. A distally extended lingual arch appliance combined with mini-implants successfully achieved 7.0 mm of molar intrusion within 7 months. Comprehensive orthodontic treatment was then performed to align the dental arches and restore the occlusal relationship. The treatment concluded with the placement of osseointegrated implants in the maxillary right molar region, successfully restoring normal masticatory function. This case report illustrates a possible clinical approach for integrating orthodontics, alveolar bone surgery, implantology, and prosthodontics and suggests that localized regional acceleratory phenomenon-related bone remodeling may have contributed to the management of a complex dental condition in this selected patient.</div></div><div>This case report details the treatment of a 24-year-old male with an overerupted mandibular right second molar caused by the prolonged absence of opposing teeth. The patient presented with swelling and discomfort in the maxillary right posterior region. Clinical examination revealed an odontoma in the posterior maxilla, as well as a dentigerous cyst associated with the mandibular right third molar. Multidisciplinary treatment involved piezosurgery to remove the odontoma and the cyst, followed by bone grafting and molar intrusion. The surgical intervention may have elicited a localized regional acceleratory phenomenon, which may have contributed to subsequent orthodontic molar intrusion. A distally extended lingual arch appliance combined with mini-implants successfully achieved 7.0 mm of molar intrusion within 7 months. Comprehensive orthodontic treatment was then performed to align the dental arches and restore the occlusal relationship. The treatment concluded with the placement of osseointegrated implants in the maxillary right molar region, successfully restoring normal masticatory function. This case repor","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 5","pages":"Pages 453-465"},"PeriodicalIF":0.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149162595","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":"Early treatment of labially inversely impacted maxillary central incisors","authors":"Roy Sabri","doi":"10.1016/j.xaor.2026.06.009","DOIUrl":"10.1016/j.xaor.2026.06.009","url":null,"abstract":"<div><ul><li><span>•</span><span><div>Early treatment of labially inversely impacted maxillary central incisors in the deciduous and mixed dentitions.</div></span></li><li><span>•</span><span><div>Apically positioned flap and the closed-eruption surgical techniques.</div></span></li><li><span>•</span><span><div>Orthodontic traction before the onset of root formation yields longer root length.</div></span></li><li><span>•</span><span><div>Although interdisciplinary treatment is challenging, the prognosis remains positive.</div></span></li><li><span>•</span><span><div>Inversely impacted incisors may require up to 2 years of treatment.</div></span></li></ul></div><div><div>This article reports the combined surgical exposure and orthodontic treatment of labially inversely impacted maxillary central incisors in the deciduous and mixed dentitions. After being successfully moved into proper positions, one highly positioned impacted incisor had a short root with an obliterated root canal but showed an esthetically good and stable outcome 14 years after treatment. The other two impacted incisors had normal root morphology after treatment, similar to the roots of their contralateral central incisors. The surgical procedures and the orthodontic strategies for treating labially inversely impacted maxillary central incisors are described, along with a review of the current literature on the topic. The importance of early treatment for the root development of labially inversely impacted maxillary central incisors is also discussed.</div></div><div>This article reports the combined surgical exposure and orthodontic treatment of labially inversely impacted maxillary central incisors in the deciduous and mixed dentitions. After being successfully moved into proper positions, one highly positioned impacted incisor had a short root with an obliterated root canal but showed an esthetically good and stable outcome 14 years after treatment. The other two impacted incisors had normal root morphology after treatment, similar to the roots of their contralateral central incisors. The surgical procedures and the orthodontic strategies for treating labially inversely impacted maxillary central incisors are described, along with a review of the current literature on the topic. The importance of early treatment for the root development of labially inversely impacted maxillary central incisors is also discussed.</div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 5","pages":"Pages 378-389"},"PeriodicalIF":0.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145193","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 gnathological positioner in the digital age – Workflow, accuracy analysis, and case report","authors":"Julius Haas,&nbsp;Linus Hötzel,&nbsp;Andrea Wichelhaus,&nbsp;Hisham Sabbagh","doi":"10.1016/j.xaor.2026.04.001","DOIUrl":"10.1016/j.xaor.2026.04.001","url":null,"abstract":"<div><h3>Introduction</h3><div>The positioner is an orthodontic appliance traditionally used to refine occlusion and support functional settling after orthodontic treatment. This study aimed to present a digital workflow for the fabrication of a gnathological positioner and evaluate its clinical use in a patient.</div></div><div><h3>Methods</h3><div>A female patient with a unilateral cleft lip and palate and agenesis of teeth 14 and 22 underwent orthodontic treatment with a multibracket appliance. After appliance removal, fixed retainers were bonded to stabilize the anterior teeth. A gnathological positioner was manufactured in-office based on intraoral scans (TRIOS 5; 3Shape, Copenhagen, Denmark) and digital setup. The appliance was delivered the following day and worn full-time for 3 days, then afternoons and nights for 2 weeks, and evenings for 3 months.</div></div><div><h3>Results</h3><div>The digital workflow presented reduced the manufacturing process to 2 working steps—three-dimensional printing and appliance thermoforming—allowing rapid appliance delivery. Clinically, the positioner improved static and dynamic occlusal contacts according to the digital setup in the virtual articulator.</div></div><div><h3>Conclusions</h3><div>This case demonstrates the renewed relevance of the positioner in digitally supported finishing protocols.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Pages 296-305"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694731","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":"August 2026","authors":"","doi":"10.1016/j.xaor.2026.07.002","DOIUrl":"10.1016/j.xaor.2026.07.002","url":null,"abstract":"","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Page 356"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694737","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":"Quality control in the modern orthodontic practice—Integrating total quality management and clinical excellence","authors":"Richard Williams,&nbsp;Brianna Wolfe,&nbsp;Young Hwan Kim,&nbsp;Jae Hyun Park","doi":"10.1016/j.xaor.2026.04.002","DOIUrl":"10.1016/j.xaor.2026.04.002","url":null,"abstract":"<div><div>Upholding quality at every step of the orthodontic treatment process is essential to ensure the highest level of orthodontic care. As contemporary orthodontic practice shifts its focus to digital technologies and practice growth, ensuring treatment quality within clinical workflows is essential. This narrative review analyzes the origins of quality control in orthodontics and explores the established total quality management frameworks from business and health care to expand upon the limited applications of quality management in orthodontics. Clinical applications for integrating these total quality management principles into orthodontic practice are explored, and providers are encouraged to customize quality-control frameworks to their existing practice workflows.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Pages 277-283"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694730","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":"Maxillary first-molar extraction spaces managed with aligners: A report of 3 patients","authors":"Hiroyuki Watabe,&nbsp;Takao Minamidate,&nbsp;Ken Togari,&nbsp;Naoya Masuoka,&nbsp;Greg J. Huang","doi":"10.1016/j.xaor.2026.03.002","DOIUrl":"10.1016/j.xaor.2026.03.002","url":null,"abstract":"<div><div>The first molars are highly susceptible to early dental caries, and progression and recurrent decay can sometimes lead to the extraction of these teeth. In such situations, the decision to close the extraction space or to manage it for prosthetic replacement requires careful consideration of various factors, including extraction site parameters (reason for extraction, recency, ridge height and width, proximity of sinus, etc.), amount of crowding, size of the second and third molars, mesiodistal crown inclinations of the premolars and molars, potential for root resorption, and the patient’s age. We present 3 adult patients treated with clear aligners: 1 with retention of the maxillary first-molar space and 2 with space closure. Of the 2 patients who underwent space closure, 1 had severe crowding of the maxillary arch, and 1 had mild crowding. In this report, we discuss management approaches and factors contributing to the successful treatment of maxillary first molar spaces.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Pages 317-339"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694734","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":"Beyond stability: Diagnostic and prognostic challenges in miniscrew-assisted open bite treatment","authors":"Syed Muhammad Ali","doi":"10.1016/j.xaor.2025.11.010","DOIUrl":"10.1016/j.xaor.2025.11.010","url":null,"abstract":"","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Page 275"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694728","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 consideration for growth when managing missing maxillary incisors","authors":"Jae Hyun Park (Editor-in-Chief)","doi":"10.1016/j.xaor.2026.07.001","DOIUrl":"10.1016/j.xaor.2026.07.001","url":null,"abstract":"","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Pages 273-274"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694727","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":"Articles from current orthodontic literature selected and reviewed by: Residents, University of the Pacific Arthur A. Dugoni School of Dentistry, San Francisco, Calif","authors":"Heesoo Oh (Program Director),&nbsp;Sercan Akyalcin (Associate Editor for Resident’s Journal Review)","doi":"10.1016/j.xaor.2026.03.004","DOIUrl":"10.1016/j.xaor.2026.03.004","url":null,"abstract":"","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"6 4","pages":"Pages 284-295"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148694710","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}