AJO-DO clinical companion最新文献_第2页

Nonextraction treatment of severe Class III malocclusion with anterior maxillary protrusion using temporary skeletal anchorage devices 临时骨支具非拔牙治疗上颌前突严重III类错牙合

AJO-DO clinical companion Pub Date : 2025-08-01 DOI: 10.1016/j.xaor.2025.05.005

Yoon-Ah Kook , You-Sun Lee , Alex Hung Kuo Chou , Mohamed Bayome , Sung Hee Han , Jae Hyun Park

引用次数: 0

Corrosion and skeletal anchorage: Insights from two clinical cases 腐蚀与骨骼锚固：来自两个临床病例的见解

AJO-DO clinical companion Pub Date : 2025-08-01 DOI: 10.1016/j.xaor.2025.05.003

Guanhong Li , Jonathan Sandler , Catherine Brierley

引用次数: 0

Orthodontic treatment of Class II malocclusion in a patient with hypophosphatasia 低磷症患者ⅱ类错牙合的正畸治疗

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.04.001

Mayu Oiwa, Takeshi Ogasawara, Ayako Suzuki, Keiji Moriyama

{"title":"Orthodontic treatment of Class II malocclusion in a patient with hypophosphatasia","authors":"Mayu Oiwa, Takeshi Ogasawara, Ayako Suzuki, Keiji Moriyama","doi":"10.1016/j.xaor.2025.04.001","DOIUrl":"10.1016/j.xaor.2025.04.001","url":null,"abstract":"<div><div>Hypophosphatasia (HPP) is an inherited skeletal dysplasia characterized by low serum alkaline phosphatase (ALP) activity, essential for bone mineralization. Its main manifestations include defective bone mineralization and premature loss of primary teeth. This case report describes a patient with HPP who underwent orthodontic treatment using edgewise appliances. Despite the condition, no premature tooth loss or alveolar bone loss was observed. The patient presented with a skeletal Class II, Angle Class II molar relationship, and dental crowding. Orthodontic treatment began with the successful distalization of maxillary molars to confirm the possibility of normal tooth movement before starting ALP replacement therapy. After initiating ALP therapy, the maxillary and mandibular first premolars were extracted, and full-arch treatment started when the patient was 16 years, 9 months. Abnormal tooth movement and gingival recession were not observed. The treatment goals of achieving a favorable facial profile and acceptable occlusion were successfully met. Contrary to expectations of relapse in HPP patients, stable occlusion was maintained after 2 years of retention. This is because the patient had normal bone mineral density and used not only removable retainers but also canine-to-canine bonded flexible spiral-wire lingual retainers in the maxillary and mandibular arches. Long-term follow-up is crucial because of the high relapse risk associated with HPP. Further research on orthodontic treatment in patients with HPP is necessary to establish comprehensive guidelines and improve clinical outcomes.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 3","pages":"Pages 332-345"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271676","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}

引用次数: 0

The American Board of Orthodontics: Written examination development, modification, and preparation recommendations 美国正畸委员会：笔试发展、修改和准备建议

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.05.002

Jae Hyun Park, Roberto Hernandez-Orsini, Paul Emile Rossouw, Anthony M. Puntillo, Daniel J. Rejman, Meenakshi Vishwanath, Onur Kadioglu, Timothy Tremont, Timothy S. Trulove

引用次数: 0

Long-term evaluation of a patient with skeletal Class III malocclusion treated with a temporary skeletal anchorage device-anchored maxillary protraction 临时骨支抗装置-锚定上颌前伸治疗骨骼III类错颌患者的长期评价

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.03.001

Sang-Hoon Lee , Jae-Hyung Yu , Mo-Hyeon Lee , Dong-Hwa Chung , Jae Hyun Park

引用次数: 0

Chemical composition and in vitro staining resistance of SmartTrack and ClearQuartz multilayered orthodontic clear aligners SmartTrack和ClearQuartz多层正畸透明矫正器的化学成分及体外耐染色性

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.02.004

Damiano Salvatori , Theodor Bühler , Séverine Birtel

{"title":"Chemical composition and in vitro staining resistance of SmartTrack and ClearQuartz multilayered orthodontic clear aligners","authors":"Damiano Salvatori , Theodor Bühler , Séverine Birtel","doi":"10.1016/j.xaor.2025.02.004","DOIUrl":"10.1016/j.xaor.2025.02.004","url":null,"abstract":"<div><div>Clear aligner therapy is a popular alternative to traditional metal braces because of its esthetic appeal and convenience. However, the chemical composition of these aligners is not well understood, and their resistance to staining by coloring compounds present in the oral environment remains a concern. In this study, we aimed to analyze the chemical composition of multilayer aligner materials using chemical imaging and evaluate their staining resistance to common food and beverage items. The in vitro staining resistance of SmartTrack (Invisalign; Align Technology, Santa Clara, Calif) and ClearQuartz (ClearCorrect; Straumann Group, Basel, Switzerland) was tested by immersing the aligners in coffee, cola, red wine, and mustard for 24 hours. The color change was assessed using spectrophotometry. The aligners were analyzed using Raman microscopy to identify the chemical composition of the individual layers and relate them to staining resistance. Raman microscopy revealed that ClearQuartz consists of a soft elastomeric polyurethane layer sandwiched between two polyester layers, whereas SmartTrack has the opposite configuration. ClearQuartz exhibited less staining in all the tested foods and beverages than SmartTrack, which showed marked staining in mustard and coffee. Stain uptake was primarily observed in the polyurethane layer, possibly because of its chemical affinity with the coloring compounds. Clinicians should consider the patients’ dietary habits and aligner material composition before recommending a clear aligner treatment. Aligners with polyurethane elastomer as the outer layer are not recommended for patients who consume food and beverages rich in colorants, such as coffee and mustard, as this may detrimentally impact patient satisfaction and compliance.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 3","pages":"Pages 249-259"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271757","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}

引用次数: 0

Treatment of Class II Division 2 malocclusion using temporary skeletal anchorage devices and an auxiliary intrusion arch after premolar extractions 前磨牙拔除后使用临时骨支抗和辅助侵入弓治疗II类2分错

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.02.006

Yugui Du , Jingyi Hou , Haiping Zhang

{"title":"Treatment of Class II Division 2 malocclusion using temporary skeletal anchorage devices and an auxiliary intrusion arch after premolar extractions","authors":"Yugui Du , Jingyi Hou , Haiping Zhang","doi":"10.1016/j.xaor.2025.02.006","DOIUrl":"10.1016/j.xaor.2025.02.006","url":null,"abstract":"<div><div>Intrusion and torque control of retroclined maxillary incisors are crucial for Class II Division 2 malocclusion treatment. This case report describes the orthodontic treatment of a 24-year-old female with Class II Division 2 malocclusion, a convex profile, lip protrusion, and excessive maxillary incisor exposure. Four premolars were extracted. A 0.016 × 0.022-in stainless steel archwire with long hooks, rectangular elastic thread, tip-back bends, and temporary skeletal anchorage devices was used to regain the torque of retroclined maxillary incisors. Maxillary and mandibular incisors were intruded using the anterior temporary skeletal anchorage devices and auxiliary intrusion arch. This treatment established a Class I molar relationship, restored the torque of the maxillary incisors, achieved a normal overbite and overjet, and improved both the lip-to-teeth relationship and the overall facial profile. Root resorption and palatal bone loss in the maxillary incisors were observed during space closure. Reduction in palatal bone loss was noted at the 14-month follow-up. A two year follow-up demonstrated stable treatment outcomes.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 3","pages":"Pages 309-321"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271674","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}

引用次数: 0

Development of a systematic checklist for reviewing cone-beam computed tomography images in an orthodontic population 发展一个系统的检查清单，审查锥束计算机断层扫描图像在正畸人群

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.04.002

Avery Claire Gil , Onur Kadioglu , G. Frans Currier , Farah Masood , Helder Baldi Jacob

{"title":"Development of a systematic checklist for reviewing cone-beam computed tomography images in an orthodontic population","authors":"Avery Claire Gil , Onur Kadioglu , G. Frans Currier , Farah Masood , Helder Baldi Jacob","doi":"10.1016/j.xaor.2025.04.002","DOIUrl":"10.1016/j.xaor.2025.04.002","url":null,"abstract":"<div><h3>Introduction</h3><div>This study aimed to create a comprehensive checklist for common incidental findings (IFs) in an orthodontic population to assist orthodontists in interpreting cone-beam computed tomography (CBCT) images.</div></div><div><h3>Methods</h3><div>A total of 475 out of 479 consecutive CBCT images were retrospectively reviewed. The images were divided into 6 easily identifiable zones using landmarks and reference planes orthodontists commonly used for treatment planning. Findings were further classified into variations of normal anatomy, IFs, and IFs that may be considered for referral to a radiologist.</div></div><div><h3>Results</h3><div>A total of 2248 IFs were reported in the 475 CBCT scans (4.7 findings/scan). Zone 3, which includes the maxilla, presented the most findings (56.5%), followed by zone 5 (22.9%), which includes the mandible, zone 6 (7.0%), zone 2 (6.6%), zone 4 (5.3%), and zone 1 (1.7%). Most findings were normal variations in anatomy (62.2%). The most common finding was impacted teeth (18.8%) and concha bullosa (8.9%).</div></div><div><h3>Conclusions</h3><div>This study underscores the high frequency of IFs in large field of view CBCT images in an orthodontic patient population.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 3","pages":"Pages 270-281"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271815","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}

引用次数: 0

Maxillary skeletal expander with 6 miniscrews and tadlock: A case report 上颌骨扩张器6个小钉和蝌蚪1例

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.03.003

Daniele Cantarella , Jae Hyun Park , Lorena Karanxha , Evangelista Giovanni Mancini , Massimo Del Fabbro , Alberto Caprioglio , Won Moon

{"title":"Maxillary skeletal expander with 6 miniscrews and tadlock: A case report","authors":"Daniele Cantarella , Jae Hyun Park , Lorena Karanxha , Evangelista Giovanni Mancini , Massimo Del Fabbro , Alberto Caprioglio , Won Moon","doi":"10.1016/j.xaor.2025.03.003","DOIUrl":"10.1016/j.xaor.2025.03.003","url":null,"abstract":"<div><div>Miniscrew-assisted rapid palatal expansion (MARPE) devices offer an alternative to orthognathic surgery for postpubertal patients, but a limitation of MARPE is the possible migration of miniscrews during maxillary expansion. This becomes critical when palatal bone is thin at the miniscrew insertion sites, potentially leading to miniscrew failure. In this article, a maxillary skeletal expander (MSE), a particular type of MARPE appliance, was adopted to skeletally expand the maxilla in a postpubertal patient with a thin palatal bone. To reinforce the skeletal anchorage, the MSE was modified by adding 2 lateral miniscrews in the palatal slope between the second premolar and first molar. A virtual model of the MSE with 4 miniscrews was imported into the merged model of the patient's cone-beam computed tomography and maxillary dental arch. Then, a computer-aided design/manufacturing structure with appliance arms, 2 bushings for additional lateral miniscrews, and molar bands was 3-dimensionally designed and manufactured with selective laser melting technology and was laser welded to the MSE body to produce the modified MSE with 6 miniscrews. Because appliance arms tend to slide along the additional lateral miniscrews during maxillary expansion because of the lateral force vector, a steel ligature (the “tadlock”) is tied between the miniscrew head and the bushing pin present on the appliance arms to eliminate the problem. The digital workflow to fabricate the MSE with 6 miniscrews and the tadlock mechanism are presented along with the procedure to expand the maxilla in a postpubertal patient with a thin palatal bone.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 3","pages":"Pages 260-269"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271814","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}

引用次数: 0

Clear aligner treatment of Class II malocclusion with deep impinging overbite 矫正器治疗II类错牙合伴深嵌合覆咬

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.02.003

Sarah Abu Arqub , Brittany Morgan , Samantha Montoya

引用次数: 0