AJO-DO clinical companion最新文献_第8页

A 24-year follow-up on the surgical correction stability of Class II skeletal malocclusion associated with anterior open bite and temporomandibular joint pain 对伴有前开咬和颞下颌关节疼痛的II类骨骼错颌畸形手术矫正稳定性的24年随访

AJO-DO clinical companion Pub Date : 2025-10-01 Epub Date: 2025-08-05 DOI: 10.1016/j.xaor.2025.07.005

José Augusto Mendes Miguel , Joberth Rainner Baliza de Paula , Julio Pedra e Cal-Neto , Henrique Martins da Silveira

引用次数: 0

Repair of receded gingival tissue through lingual root movement with an overhanging attachment and clear aligners 通过舌根运动，使用悬垂附着体和清晰的矫正器修复萎缩的牙龈组织

AJO-DO clinical companion Pub Date : 2025-10-01 Epub Date: 2025-07-24 DOI: 10.1016/j.xaor.2025.07.003

Kyung Jae Hong , Jong Pil Baek , Jung Jin Park , Jae Hyun Park

{"title":"Repair of receded gingival tissue through lingual root movement with an overhanging attachment and clear aligners","authors":"Kyung Jae Hong , Jong Pil Baek , Jung Jin Park , Jae Hyun Park","doi":"10.1016/j.xaor.2025.07.003","DOIUrl":"10.1016/j.xaor.2025.07.003","url":null,"abstract":"<div><div>Gingival recession is challenging in orthodontics, especially in patients with preexisting conditions. Clear aligner treatment offers a less invasive option, but root torque control remains complex without specialized mechanics. This case report describes the successful treatment of gingival recession on the mandibular left central incisor through root movement using a clear aligner with an overhanging attachment. An overhanging attachment is a modified clear aligner attachment designed to apply force closer to the center of resistance, enabling greater control over root movement. In this case, the patient experienced reduced gingival recession from 5 to 1 mm after 11 months of treatment with 20 stages of clear aligners. The root of the mandibular left central incisor was repositioned lingually, facilitating tissue repair and improved periodontal health. This approach provided a favorable outcome without the need for surgical intervention. The findings suggest that overhanging attachments on clear aligners can effectively correct gingival recession caused by labially positioned roots. Precise root torque control can promote bone remodeling and soft-tissue recovery, offering a minimally invasive alternative to traditional surgical procedures. Further research is warranted to explore this technique’s long-term stability and broader clinical applicability.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 5","pages":"Pages 455-462"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290126","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

How do bond strength, torsional strength, and mode of failure of stock and custom 3-dimensional-printed brackets compare with conventional-type metal and ceramic twin brackets? 与传统的金属和陶瓷双支架相比，库存和定制三维打印支架的粘结强度、抗扭强度和失效模式如何？

AJO-DO clinical companion Pub Date : 2025-10-01 Epub Date: 2025-08-14 DOI: 10.1016/j.xaor.2025.08.001

David Wiggins , Kierra M. Banks , Wanda I. Claro , Nathan R. Hamman , Antheunis Versluis

{"title":"How do bond strength, torsional strength, and mode of failure of stock and custom 3-dimensional-printed brackets compare with conventional-type metal and ceramic twin brackets?","authors":"David Wiggins , Kierra M. Banks , Wanda I. Claro , Nathan R. Hamman , Antheunis Versluis","doi":"10.1016/j.xaor.2025.08.001","DOIUrl":"10.1016/j.xaor.2025.08.001","url":null,"abstract":"<div><h3>Introduction</h3><div>This study assessed novel stock and custom 3-dimensional (3D) printed brackets by comparing their bond and bracket strengths with conventional metal and ceramic twin brackets.</div></div><div><h3>Methods</h3><div>Four types of brackets were bonded to 160 extracted noncarious premolars and tested either after 24 hours or after 5000 thermocycles that simulated 6 months of aging. The bonded brackets were tested in a universal testing machine by applying a shear force or torsional load at the central groove until the bond or bracket failed. Types of failure were indexed. Strengths (maximum force or maximum torque) among bracket types were compared using analysis of variance and pairwise comparisons. Failure types were analyzed with Kruskal-Wallis and Mann-Whitney pairwise comparisons. Significance level was 0.05.</div></div><div><h3>Results</h3><div>Bracket type and aging significantly affected shear bond strength (<em>P</em> ≤0.001), in which the bond strength of 3D-printed brackets was significantly lower than for metal or ceramic brackets. Maximum torque was only significantly affected by bracket type (<em>P</em> <0.001), with 3D-printed brackets significantly weaker than metal or ceramic brackets. The type of failure under shear force was not significantly affected by bracket type or aging (<em>P</em> = 0.767 and 0.578, respectively), but under torsion, the failure type differed significantly between metal (bond failure) and nonmetal brackets (wing fractures).</div></div><div><h3>Conclusions</h3><div>Bond and bracket strengths of stock and custom 3D-printed brackets were not significantly different, but both were significantly weaker than metal or ceramic brackets. Moreover, 3D printed bracket designs need considerable improvements before their bond and strength performance can match conventional bracket options.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 5","pages":"Pages 448-454"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290138","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 hyperdivergent Class II open bite in a periodontally compromised patient 牙周受损患者超发散II类开咬的治疗

AJO-DO clinical companion Pub Date : 2025-10-01 Epub Date: 2025-07-16 DOI: 10.1016/j.xaor.2025.07.001

Vanessa Paredes-Gallardo, Sara Camañes-Gonzalvo, Verónica García-Sanz

引用次数: 0

A bright future for the American Journal of Orthodontics & Dentofacial Orthopedics and the American Journal of Orthodontics & Dentofacial Orthopedics Clinical Companion 美国正畸与牙面矫形杂志和美国正畸与牙面矫形临床伴侣杂志的光明未来

AJO-DO clinical companion Pub Date : 2025-08-01 Epub Date: 2025-08-13 DOI: 10.1016/j.xaor.2025.06.005

Jae Hyun Park

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Articles from current orthodontic literature selected and reviewed by: 从目前的正畸文献中选择和审查的文章：

AJO-DO clinical companion Pub Date : 2025-08-01 Epub Date: 2025-06-20 DOI: 10.1016/j.xaor.2025.06.002

Paul Armbruster Program Director, Sercan Akyalcin Associate Editor for Residents’ Journal Review

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The role of orthodontics in a 13-year multidisciplinary treatment of cleft lip and palate 口腔正畸在唇腭裂13年多学科治疗中的作用

AJO-DO clinical companion Pub Date : 2025-08-01 Epub Date: 2025-06-20 DOI: 10.1016/j.xaor.2025.06.003

Wenying Kuang , Jie Zheng , Yanping Jiang , Wenjun Yuan

引用次数: 0

August 2025 2025年8月

AJO-DO clinical companion Pub Date : 2025-08-01 Epub Date: 2025-08-13 DOI: 10.1016/j.xaor.2025.07.004

Dr Allen Moffitt (CE Editor)

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Three-dimensional printed J-hook headgear: Bridging traditional and contemporary orthodontic practices 三维打印j钩头套：连接传统和现代正畸实践

AJO-DO clinical companion Pub Date : 2025-08-01 Epub Date: 2025-06-04 DOI: 10.1016/j.xaor.2025.05.006

Elie Amm , Lara Maalouf , Marwan Mansour , James Vaden

{"title":"Three-dimensional printed J-hook headgear: Bridging traditional and contemporary orthodontic practices","authors":"Elie Amm , Lara Maalouf , Marwan Mansour , James Vaden","doi":"10.1016/j.xaor.2025.05.006","DOIUrl":"10.1016/j.xaor.2025.05.006","url":null,"abstract":"<div><div><span><span>The J-hook headgear, a once essential appliance in </span>orthodontic biomechanics<span>, has seen a marked decline in use because of the rise of temporary skeletal anchorage devices and shifting clinical preferences. Despite its historical success in managing Class II </span></span>malocclusions<span> and providing precise biomechanical control, limitations in availability have posed challenges for practitioners requiring noninvasive and effective alternatives. This study revisits the clinical utility of the J-hook headgear, evaluates its advantages and limitations compared with temporary skeletal anchorage devices, and introduces a novel solution through additive manufacturing. By leveraging 3-dimensional (3D) printing technology, a customizable and cost-effective design was developed using biocompatible materials. The proposed 3D-printed J-hook offers enhanced patient comfort and adaptability to various clinical needs and ensures the continued relevance of this appliance in contemporary orthodontic practice. Freely accessible 3D models are provided to encourage adoption, innovation, and further improvement. This approach highlights the potential of modern fabrication techniques in preserving valuable orthodontic tools while enhancing their clinical applicability.</span></div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 4","pages":"Pages 369-373"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830251","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

Eight-year update on orthodontic-surgical correction of Class II malocclusion for iatrogenic complications 医源性并发症II类错牙合正畸手术矫正的八年最新进展

AJO-DO clinical companion Pub Date : 2025-08-01 Epub Date: 2025-05-14 DOI: 10.1016/j.xaor.2025.05.001

Deise Caldas Kühlman , Rhita Cristina Cunha Almeida , Roberto Prado , Alexandre Hermolin , Felipe de Assis Ribeiro Carvalho

{"title":"Eight-year update on orthodontic-surgical correction of Class II malocclusion for iatrogenic complications","authors":"Deise Caldas Kühlman , Rhita Cristina Cunha Almeida , Roberto Prado , Alexandre Hermolin , Felipe de Assis Ribeiro Carvalho","doi":"10.1016/j.xaor.2025.05.001","DOIUrl":"10.1016/j.xaor.2025.05.001","url":null,"abstract":"<div><div><span><span>This report provides an 8-year follow-up on the surgical-orthodontic treatment of a 16-year-old male patient. The patient previously underwent iatrogenic orthodontic<span> intervention, which involved the use of headgear to correct his severe skeletal </span></span>Class II malocclusion<span> (ANB, 11.6°), resulting in excessive uncontrolled buccal root torque of the maxillary incisors<span>. The maxillary incisors were realigned and repositioned within the alveolar bone with the appropriate buccolingual torque. This intervention included the extraction of the </span></span></span>mandibular first premolars<span><span><span> to aid in uprighting the mandibular incisors and create an adequate overjet<span> necessary for the subsequent mandibular advancement surgery. Although the patient received </span></span>periodontal treatments<span>, including connective tissue manipulation and bone grafting, a minor recurrence of </span></span>gingival recession<span> was observed. Nonetheless, the patient has shown long-term stability and a proper occlusal relationship 8 years posttreatment.</span></span></div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 4","pages":"Pages 420-423"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830242","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