AJO-DO clinical companion最新文献_第3页

Comprehensive treatment for mandibular micrognathia: Integrative approaches in orthognathic surgery, distraction osteogenesis, and periodontal management 下颌小颌畸形的综合治疗：正颌手术、牵张成骨和牙周管理的综合方法

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.02.005

Longfei Wen , Yulin Shi , Hongtao Shang , Lei Tian , Yong Yang , Yiwen Liu , Siying Liu

{"title":"Comprehensive treatment for mandibular micrognathia: Integrative approaches in orthognathic surgery, distraction osteogenesis, and periodontal management","authors":"Longfei Wen , Yulin Shi , Hongtao Shang , Lei Tian , Yong Yang , Yiwen Liu , Siying Liu","doi":"10.1016/j.xaor.2025.02.005","DOIUrl":"10.1016/j.xaor.2025.02.005","url":null,"abstract":"<div><div>Mandibular micrognathia not only disrupts the 3-dimensional orientation of the jaw but also induces secondary functional alterations in adjacent soft and hard tissues, as well as the stomatognathic system, significantly impairing the patient's quality of life. This case report documents the comprehensive treatment of a patient with severe micrognathia with obstructive sleep apnea-hypopnea syndrome. The treatment commenced with bilateral mandibular distraction osteogenesis to increase the height and length of the mandible, which also facilitated upper airway patency by stretching the soft tissues. After a 6-month retention period, the distraction devices were removed, and the maxillary arch was surgically expanded to align with the mandibular arch width. Presurgical orthodontic treatment was initiated after complete periodontal therapy. After 18 months, orthognathic surgery was conducted to establish proper occlusal alignment and enhance facial esthetics. Overall, the treatment outcomes were highly satisfactory, emphasizing the importance of an integrated approach for clinicians. This case report highlights that treatment objectives should extend beyond airway clearance and esthetic restoration to include occlusion, periodontal health, and joint stability, necessitating comprehensive diagnosis and multidisciplinary collaboration to achieve functional, esthetic, and long-term results.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 3","pages":"Pages 294-308"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271817","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

June 2025 2025年6月

AJO-DO clinical companion Pub Date : 2025-06-01 DOI: 10.1016/j.xaor.2025.05.004

Dr Allen Moffitt (CE Editor)

引用次数: 0

April 2025 2025年4月

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2025.03.002

Dr Allen Moffitt (CE Editor)

引用次数: 0

Surgical orthodontic correction of Class II open bite with idiopathic condylar resorption 对特发性髁突吸收的 II 类开放性咬合进行外科正畸矫正

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2024.10.003

Toyoaki Takagi , Yuko Shintaku , Tomonao Aikawa , So Shimizu , Eiji Tanaka

{"title":"Surgical orthodontic correction of Class II open bite with idiopathic condylar resorption","authors":"Toyoaki Takagi , Yuko Shintaku , Tomonao Aikawa , So Shimizu , Eiji Tanaka","doi":"10.1016/j.xaor.2024.10.003","DOIUrl":"10.1016/j.xaor.2024.10.003","url":null,"abstract":"<div><div>The correction of severe mandibular retrognathia associated with idiopathic condylar resorption (ICR) is one of the most difficult challenges in orthodontics. This article reports on the treatment of an adult patient with severe mandibular retrognathia associated with ICR treated with orthognathic surgery. A female patient aged 18 years and 8 months presented with a complaint of maxillary protrusion and retropositioned chin. Her overjet and overbite were 6.0 mm and −2.5 mm, respectively. She had a history of orthodontic treatment in which her maxillary and mandibular first premolars were extracted. She was diagnosed with mandibular retrognathia involving the ICR with a skeletal Class II jaw-base relationship and a high mandibular plane angle. After 13 months of preoperative orthodontic treatment, Le Fort I osteotomy and bilateral sagittal split ramus osteotomy were performed. In addition, the genioplasty was performed after 6 months of postoperative orthodontic treatment. After 27 months of active orthodontic treatment, the retropositioned chin was improved, and an acceptable occlusion with a Class I molar relationship and a proper interincisal relationship were achieved. After the 1-year retention period, an acceptable and functional occlusion was maintained without a significant recurrence of mandibular retrognathia. The results indicate stability after orthognathic surgery in a patient with mandibular retrognathia involved in ICR when surgical mandibular advancement is performed with sufficient consideration.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 164-179"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825817","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

Extreme dentoalveolar compensation in complex skeletal Class III malocclusion with anterior open bite and total crossbite 极端牙槽代偿在复杂骨骼III类错牙合伴前开咬和全交叉咬中的应用

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2025.01.005

Eduardo Prado , Fabricio Pinelli Valarelli , Karina Maria Salvatore Freitas

引用次数: 0

Uprighting a mesially-tipped molar with a mini-implant-supported lever 用微型种植体支撑的杠杆扶正中尖磨牙

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2025.01.004

Jin-Deok Kim , Sung-Hoon Lim , Eun-Ji Kim , Jae Hyun Park

{"title":"Uprighting a mesially-tipped molar with a mini-implant-supported lever","authors":"Jin-Deok Kim , Sung-Hoon Lim , Eun-Ji Kim , Jae Hyun Park","doi":"10.1016/j.xaor.2025.01.004","DOIUrl":"10.1016/j.xaor.2025.01.004","url":null,"abstract":"<div><div>This case report presents a technique for uprighting a mesially-tipped mandibular second molar by using a mini-implant-supported lever designed to direct the force vector lingually and apically. A 38-year-old male was referred for molar uprighting before implant placement in the mandibular right second premolar and first molars. To avoid low bone density in the retromolar triangle and mobile soft tissue in the retromolar pad, a mini-implant was strategically placed on the distal side of the mandibular right second molar to ensure better bone quality and minimal soft tissue irritation. A lever extension was placed in the bracket slot on the mini-implant head using the novel subslot overtie method through the hole beneath the bracket. This setup directed the distal traction force through the molar's center of resistance in the occlusal plane, preventing undesirable rotational moments. To generate an intrusive force on the distal marginal ridge, an elastomeric chain configured in a slingshot manner was applied from a button on the mesial surface of the second molar to the lever extension, crossing over the occlusal surface. The treatment was completed within 5 months. For retention, a minitube was bonded to the distal surface of the second molar and ligated into the lever. Using this lever extension allowed ideal placement of the mini-implant, enabling a straightforward force application that included an intrusive component while minimizing unwanted movements.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 156-163"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825816","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

An effective and efficient method to treat severely impacted maxillary canines 一种治疗上颌牙严重阻生的有效方法

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2025.01.002

Hélio Henrique de Araújo Brito , Heloísio de Rezende Leite , Emanuelle de Fátima Ferreira Oliveira , Mariele Cristina Garcia Pantuzo , Ildeu Andrade Jr

引用次数: 0

The American Board of Orthodontics: A brief history and update of the orthodontic certification process 美国正畸委员会：正畸认证过程的简史和更新

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2025.02.001

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

{"title":"The American Board of Orthodontics: A brief history and update of the orthodontic certification process","authors":"Jae Hyun Park, Roberto Hernandez-Orsini, Paul Emile Rossouw, Anthony M. Puntillo, Daniel J. Rejman, Meenakshi Vishwanath, Onur Kadioglu, Timothy Tremont, Timothy S. Trulove","doi":"10.1016/j.xaor.2025.02.001","DOIUrl":"10.1016/j.xaor.2025.02.001","url":null,"abstract":"<div><div>The American Board of Orthodontics (ABO) has updated its clinical examination process to remove barriers to the case-based examination and to distinguish board-certified orthodontists from uncertified dental practitioners who provide orthodontic care. In 2017, the ABO took the bold step of adopting a new clinical examination format (a scenario-based examination), thereby, addressing the challenges that were inherent in the former case-based examination format. The coronavirus disease 2019 pandemic forced the scenario-based clinical examination scheduled for July 2020 to be canceled. This caused the ABO to regroup and adapt the scenario-based clinical examination to a format that could be administered worldwide in a testing center environment, eliminating the need to travel to St Louis, Missouri. The ABO-written examination remained unaltered.</div><div>Since the scenario-based format was adopted, 63% of the AAO members are now board-certified, and the trend is upward. In support of our mission to elevate the quality of orthodontics through certification, education, and professional collaboration, the ABO is responsible for certifying orthodontists in a fair, reliable, and valid manner. This requires continuous evaluation and review of our certification process to ensure that our examination reliably evaluates the ability of orthodontists to provide the highest level of patient care.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 131-135"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825813","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

Comparison of 3 different mandibular dental midline correction mechanics: A finite element analysis study 三种不同的下颌牙中线矫正力学比较：有限元分析研究

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2024.12.003

Ayşegül Süğürtin, Hasan Camcı

{"title":"Comparison of 3 different mandibular dental midline correction mechanics: A finite element analysis study","authors":"Ayşegül Süğürtin, Hasan Camcı","doi":"10.1016/j.xaor.2024.12.003","DOIUrl":"10.1016/j.xaor.2024.12.003","url":null,"abstract":"<div><h3>Introduction</h3><div>This study aimed to compare the effects of three different mandibular dental midline correction mechanics on the dental arch using the finite element analysis method.</div></div><div><h3>Methods</h3><div>In the first scenario, two forces parallel to the occlusal plane (without a vertical component) were applied, anchored by two miniscrews in the mandibular arch. In the second scenario, a Class II elastic was applied in the right quadrant, a Class III elastic in the left quadrant, and diagonal intermaxillary elastics were applied from the maxillary left lateral to the mandibular right lateral in the anterior region. In the third scenario, bilateral Class II intermaxillary elastics were used, along with a z-shaped diagonal intermaxillary elastic extending from the maxillary anterior to the mandibular posterior. The amount of tooth movement and the highest and lowest von Mises stress values were compared across all three scenarios.</div></div><div><h3>Results</h3><div>The mandibular incisors exhibited consistent movement in the same direction along the transverse axis across all three scenarios; however, the first scenario demonstrated the greatest degree of movement. Because of the elastics, the maxillary incisors in the second and third scenarios shifted in the opposite direction compared with the mandibular incisors. Movement of the maxillary incisors was more pronounced in the third scenario compared with the second. A significant development of occlusal cant was observed in the second scenario.</div></div><div><h3>Conclusions</h3><div>Miniscrew-assisted midline correction has proven to be effective for preventing occlusal cant. Modifying the traditional elastic configuration can reduce or eliminate the risk of developing occlusal cant.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 136-145"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825814","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

Adult patient treated with a miniscrew-assisted rapid palatal expansion combined with surgical exposure of three impacted teeth and several ageneses 成人患者采用微型辅助快速腭扩张术结合三颗阻生牙和几颗牙的手术暴露

AJO-DO clinical companion Pub Date : 2025-04-01 DOI: 10.1016/j.xaor.2024.12.001

Carmen Lorente , Maria Perez-Vela , Gabriela Wills Castro , Pedro Lorente , Teresa Lorente

{"title":"Adult patient treated with a miniscrew-assisted rapid palatal expansion combined with surgical exposure of three impacted teeth and several ageneses","authors":"Carmen Lorente , Maria Perez-Vela , Gabriela Wills Castro , Pedro Lorente , Teresa Lorente","doi":"10.1016/j.xaor.2024.12.001","DOIUrl":"10.1016/j.xaor.2024.12.001","url":null,"abstract":"<div><div>This case report outlines the orthodontic management strategies employed for a young adult male patient presenting with a maxillary transverse deficiency and ectopically impacted bilateral maxillary canines and right second premolar requiring surgical exposure. In addition, the patient exhibited agenesis of all four mandibular permanent incisors. The treatment protocol encompassed three sequential stages: (1) correction of transverse deficiency through maxillary expansion using a miniscrew-assisted rapid palatal expansion appliance, (2) surgical exposure of the three ectopically impacted teeth through a closed eruption technique, and (3) orthodontic traction to stimulate their eruption and subsequent alignment. The treatment outcomes were successful, achieving satisfactory maxillary expansion, which enabled the establishment of a balanced occlusion. The ectopically impacted maxillary teeth erupted in their correct positions, with normal clinical crown height and a gingival line harmonious with the adjacent teeth. The strategic incorporation of cantilever arms enhanced the control of forces and traction vectors, mitigating potential stress and minimizing the risk of damage to the adjacent teeth.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 180-195"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825818","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