AJO-DO clinical companion最新文献_第8页

Conceptual overcorrection in orthodontics: A strategy to enhance Invisalign's effectiveness 牙齿矫正中的概念性过度矫正：提高隐适美®效果的策略

AJO-DO clinical companion Pub Date : 2024-08-01 DOI: 10.1016/j.xaor.2024.04.003

引用次数: 0

Forced eruption of a deeply impacted mandibular second molar after extraction of the mandibular first molar for regeneration of an alveolar bony defect 下颌第一磨牙拔除后，为牙槽骨缺损再生而强制萌出深陷的下颌第二磨牙

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.03.005

Lin Lu , Chenlong Xia , Jiaping Si , Lixuen Siow , Wen Li

{"title":"Forced eruption of a deeply impacted mandibular second molar after extraction of the mandibular first molar for regeneration of an alveolar bony defect","authors":"Lin Lu , Chenlong Xia , Jiaping Si , Lixuen Siow , Wen Li","doi":"10.1016/j.xaor.2024.03.005","DOIUrl":"10.1016/j.xaor.2024.03.005","url":null,"abstract":"<div><p>The presence of a horizontal, deeply impacted mandibular second molar (MM2) is often indicative of a patient with a complex condition. This intricacy is not only linked to the impacted tooth itself but also to the adjacent teeth and alveolar bone. Therefore, when devising the treatment strategy, the orthodontist needs to consider all factors to select the ideal approach with the best prognosis for the patient. This study presents a case of a 15-year-old girl who developed mesially and severely low-impacted right MM2 with a segment of the crown located on the root side of the distal root of the mandibular first molar (MM1). The eruption space was filled by the impacted mandibular third molar (MM3), which was also mesially angulated and accompanied by a large-scale local alveolar bone defect. After fixed orthodontic treatment for the entire dentition, MM3 was uprighted, and MM2 was extruded via closed forced eruption after the extraction of MM1. Finally, MM2 and MM3 were uprighted, restoring the normal occlusal relationship and the deficient alveolar bone after 26 months. Two-year retention cone-beam computed tomography displayed signs of cortical bone regeneration around MM2 and MM3, corroborating that our treatment achieved satisfactory and stable results. This case suggests that MM1 extraction is a candidate option for MM2 impaction, especially when patients are at the appropriate age and develop a complex impacted tooth and challenging MM1 retention.</p></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"4 3","pages":"Pages 200-210"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140769854","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

Design and manufacturing of a fully digital protraction facemask 设计和制造全数字化牵引面罩 (DIPROM)

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.03.001

Gianluigi Fiorillo , Lorenzo Garrisi , Alice Mandelli , Fabio Arnò , Gualtiero Mandelli , Giorgio Gastaldi

{"title":"Design and manufacturing of a fully digital protraction facemask","authors":"Gianluigi Fiorillo , Lorenzo Garrisi , Alice Mandelli , Fabio Arnò , Gualtiero Mandelli , Giorgio Gastaldi","doi":"10.1016/j.xaor.2024.03.001","DOIUrl":"10.1016/j.xaor.2024.03.001","url":null,"abstract":"<div><p>This study aimed to describe the fully digital workflow for the production design and manufacturing of a fully digital protraction facemask, a custom-made facemask designed to improve the effectiveness of orthopedic treatment in growing patients with skeletal Class III malocclusion. The first step involves generating the patient's face model on the basis of data acquired using a 3-dimensional scanning camera. Second, a shell mask is virtually drawn and finished to guarantee 22 support zones on the forehead, cheekbones, and chin. Then, the mask is prototyped by stereolithography using biocompatible resins. The inner surface is lined with a certified, soft, antibacterial, washable material, whereas the outer surface can be customized with hydrographic printing. This paper presents a case report of an 8-year-old girl with a Class III skeletal pattern. We showed that this workflow allows similar therapeutic effectiveness as protraction while minimizing the adverse effects caused by conventional facemasks. The main advantages are as follows: matching a facial scan with a lateral cephalometric radiograph allows one to precisely define the point of application and the direction of the protraction force to reduce anterior maxillary rotation; the facial anchorage can be adjusted to increase the support surface at the frontal-zygomatic level and to extend the submental surface; the perfect fit to soft tissues and the use of specific resins tested for prolonged contact with the epidermis ensure greater comfort for the patient, reducing the occurrence of dermatitis and other skin reactions; and finally, the customized shape based on facial morphology allows patients to sleep in supine, prone, and side positions.</p></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"4 3","pages":"Pages 165-173"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140276972","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 a deep impacted and transmigrated mandibular canine of type 2 using a mini-implant and gradual change of traction direction 使用微型种植体和逐渐改变牵引力方向治疗深度撞击和移位的 2 型下颌犬牙：两份病例报告

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.04.004

Stylianos I. Koutzoglou , Eleni S. Koutzoglou , Despoina S. Koutzoglou

{"title":"Treatment of a deep impacted and transmigrated mandibular canine of type 2 using a mini-implant and gradual change of traction direction","authors":"Stylianos I. Koutzoglou , Eleni S. Koutzoglou , Despoina S. Koutzoglou","doi":"10.1016/j.xaor.2024.04.004","DOIUrl":"10.1016/j.xaor.2024.04.004","url":null,"abstract":"<div><p>Transmigration of a permanent mandibular canine is considered, in most cases, to be an untreatable dental malposition. However, various indicators can be drawn from the study of these two case reports to determine the proper approach in this situation: the impaction and transmigration diagnosis causes and the severity of transmigration; that is, the distance between the apex of the transmigrated canine and the lower border of the mandible, the length of its root, the volume of its crown and the amount of the tooth beyond the mandibular midline, lack of a priori ankylosis, and the patient's age, patience, and willingness. If orthodontic traction is chosen, the following parameters need to be considered: detailed surgical exposure; location and design of the attachment on the crown of the transmigrated canine; the means linking the attachment and the traction-force means, which remain intra-tissue; skeletal anchorage; and vector of force traction, ensuring that the mandibular first premolar and the permanent mandibular incisors remain free from the orthodontic appliance during the initial stages of treatment. The proper decision on whether to extract or to expose and tract the affected tooth is discussed through the presentation of two cases of a permanent mandibular transmigrated canine of type 2. Two female patients are presented, one at the age of 23 years and 2 months, and the other at the age of 11 years and 6 months, successfully and unsuccessfully treated, respectively.</p></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"4 3","pages":"Pages 229-245"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141141644","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

Incisor torque recovery in a transfer case with iatrogenic perforation of the labial cortical plate 唇皮质板先天性穿孔的转移病例中切牙扭矩的恢复

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.01.003

Johnny J.L. Liaw , Shin-Huei Wang , Cheng-Yen Tsai , Chung-Chen Yao , Yi-Jane Chen , Greg Huang , Jae Hyun Park

引用次数: 0

Orthodontic assistant retention: Which benefit has the best prognosis for maintaining orthodontic staff? 正畸助理的留用：哪种福利最能留住正畸人员？

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.01.004

Emily Serrano , Jae Hyun Park , Curt Bay

{"title":"Orthodontic assistant retention: Which benefit has the best prognosis for maintaining orthodontic staff?","authors":"Emily Serrano , Jae Hyun Park , Curt Bay","doi":"10.1016/j.xaor.2024.01.004","DOIUrl":"10.1016/j.xaor.2024.01.004","url":null,"abstract":"<div><h3>Introduction</h3><p>Dentists are struggling to recruit staff and determine which benefits to provide to their staff. The purpose of this study was to survey orthodontic staff and orthodontists regarding their staff's perception of the most and least desirable benefits and what keeps them working at their current orthodontic office.</p></div><div><h3>Methods</h3><p>A total of 96 orthodontic staff and 67 orthodontists were surveyed. The 11-question orthodontic staff survey and 12-question orthodontist survey asked participants about office demographics, what staff liked or disliked about the office they currently work for, and overall staff satisfaction.</p></div><div><h3>Results</h3><p>Orthodontic staff reported they were somewhat satisfied, satisfied, or very satisfied, and most orthodontists reported their staff were satisfied. Orthodontic staff reported they preferred offering full-time employment and positive staff relationships, whereas they disliked their health insurance and the lack of full-time positions the most. Moreover, 85% of orthodontists identified positive staff relationships, and 72% selected offering full-time employment positions as reasons why staff chose to stay at the office. Furthermore, 43% of orthodontists selected “other,” whereas 25% selected poor staff relationships as reasons staff chose to leave the office. Predictors for staff satisfaction include positive staff relationships (8.1% of variance; <em>P</em> = 0.007) and disliking their salaries and bonuses less (5.8% of variance; <em>P</em> = 0.002).</p></div><div><h3>Conclusions</h3><p>Our findings showed that orthodontic staff prefer full-time employment, a positive work environment, and improved health insurance benefits. Overall, orthodontists are improving their understanding of desirable staff benefits; however, there are still some benefits staff desire but are not receiving.</p></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"4 3","pages":"Pages 174-181"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139639687","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 18-year update on controlled tooth movement to correct an iatrogenic problem 通过控制牙齿移动来纠正先天性问题的 18 年最新进展

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.03.003

Rhita Cristina Cunha Almeida, Marco Antonio Almeida, Luana Karine Amaro Silva, Felipe de Assis Ribeiro Carvalho

引用次数: 0

June 2024 2024 年 6 月

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.05.005

Dr Allen H. Moffitt (CE Editor)

引用次数: 0

Guidelines for a surgery-first approach using Dolphin Imaging software and the Invisalign system 使用 Dolphin 成像软件和隐适美系统的手术先行方法指南

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.03.006

Mohammedreza Sefidroodi , Inleel Lundgård Shino , Stratos Vassis , Kasper Dahl Kristensen , Jytte Buhl , Sven Erik Nørholt , Thomas Klit Pedersen

{"title":"Guidelines for a surgery-first approach using Dolphin Imaging software and the Invisalign system","authors":"Mohammedreza Sefidroodi , Inleel Lundgård Shino , Stratos Vassis , Kasper Dahl Kristensen , Jytte Buhl , Sven Erik Nørholt , Thomas Klit Pedersen","doi":"10.1016/j.xaor.2024.03.006","DOIUrl":"10.1016/j.xaor.2024.03.006","url":null,"abstract":"<div><p>Recent technological innovations allow for the integration of clear aligner therapy (CAT) with orthognathic surgical procedures, making the surgery-first orthognathic approach a reality. Combining CAT with this surgery-first strategy offers a compelling solution for both patients and orthodontists seeking a faster and less visible treatment. Although the combination of CAT and surgery-first orthognathic approach presents potential advantages for practitioners in orthognathic surgery, it also introduces new challenges. A significant obstacle is the effective transfer of the virtual surgical planned occlusion and jaw relations into the aligner software to allow for aligner manufacturing before surgery. To date, no protocol has described effective transfers of the virtual surgical plan to the CAT software. This article presents a novel method for this transfer, using the freely available software (Meshmixer, version 3.5; Autodesk, Armonk, NY) in 2 patient scenarios.</p></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"4 3","pages":"Pages 182-187"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666430524000402/pdfft?md5=35ff5169d0da5f967755df2d6e54a1ad&pid=1-s2.0-S2666430524000402-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140776358","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}

引用次数: 0

A case of anterior open bite associated with idiopathic condylar resorption treated with miniscrew-assisted orthodontics 一例伴有特发性髁突吸收的前开牙合病例，采用微型螺钉辅助正畸法治疗

AJO-DO clinical companion Pub Date : 2024-06-01 DOI: 10.1016/j.xaor.2024.04.002

Yuta Matsuki , Masahiro Hiasa , Shigeki Hanawa , Motosumi Nakagawa , Shinya Horiuchi , Eiji Tanaka

{"title":"A case of anterior open bite associated with idiopathic condylar resorption treated with miniscrew-assisted orthodontics","authors":"Yuta Matsuki , Masahiro Hiasa , Shigeki Hanawa , Motosumi Nakagawa , Shinya Horiuchi , Eiji Tanaka","doi":"10.1016/j.xaor.2024.04.002","DOIUrl":"10.1016/j.xaor.2024.04.002","url":null,"abstract":"<div><p>We successfully treated a patient with Class II Division 1, with an anterior open bite accompanied by idiopathic condylar resorption using miniscrew-assisted orthodontics. A female patient, aged 20 years and 7 months, had a convex profile with a retropositioned chin, a severe open bite, and excessive overjet due to a skeletal Class II relationship. The panoramic radiograph showed condylar atrophy with generalized sclerosis in the temporomandibular joints bilaterally, and the cone-beam computed tomography revealed severe condylar resorption with avascular necrosis bilaterally. Segmental arches were placed on the maxillary and mandibular premolars and molars. After leveling, titanium miniscrews were obliquely implanted between the maxillary first and second molars, and maxillary molar intrusion was initiated. At 11 months of treatment, a repeat cone-beam computed tomography scan was performed, and we confirmed no active resorption. Maxillary first premolars were extracted bilaterally to reduce excessive overjet. After 33 months of active orthodontic treatment, a proper facial profile and acceptable occlusion were achieved with a 2 mm intrusion of the maxillary molars. The resultant occlusion was stable throughout the 1-year retention period. In conclusion, we believe that the correction of idiopathic condylar resorption-related anterior open bite by molar intrusion using titanium miniscrews is effective for the treatment of patients with severe degenerative joints.</p></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"4 3","pages":"Pages 211-228"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141047531","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