Seminars in Orthodontics最新文献

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A digital CAD/CAM configurator for the production of orthodontic appliances – Going new ways 用于生产正畸矫治器的 CAD/CAM 数字化配置器 - 开拓新途径

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.06.010

Christoph J. Roser , Vincenzo D'Anto , Chrisopher J. Lux , Cristiano Segnini

Functional therapy in growing patients is a highly relevant area in orthodontics. With the increasing integration of computer-aided design and manufacturing technology (CAD/CAM) in orthodontics, we are witnessing significant advancements in the design of orthodontic appliances. Modern 3D printing technologies allow for the creation of complex, customized equipment in a cost-effective and time-efficient manner, using robust and durable resins. Additionally, the creative input of dental CAD design programs has led to the development of new designs.

The aim of this report is to present a novel digital orthodontic prescription that aligns with the concept of a “full digital workflow”. This prescription utilizes a digital virtual configurator, enabling effective communication between the clinician, the technician and the patient.

Using this prescription system, clinicians can easily configurate an orthodontic appliance before sending it to a dental technician for individualisation. 3D printing of the final design can then be performed directly within the dental office or by the technician. This approach allows the clinician to explore different orthodontic equipment options and modules, without the requirement for a demanding and sophisticated design process and without any knowledge of CAD. The availability of the present configurator might represent a fundamental advancement in the field of the CAD/CAM production of removable appliance linked to economic and ecological benefits.

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引用次数: 0

Design and clinical use of a completely digitally created twin block 全数字化双子座的设计和临床应用

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.05.012

Jörg Glockengießer , Jens Johannes Bock

引用次数: 0

Direct-to-print aligners: An exploration of current knowledge, from software to printers, materials, and design variations 直接打印对准器：从软件到打印机、材料和设计变化的当前知识探索。

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.06.002

Marco Migliorati, Anna De Mari, Sara Drago

引用次数: 0

FMi --- Ed Board

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/S1073-8746(24)00145-2

引用次数: 0

The evolution of the M.A.R.A. appliance from analogue to digital M.A.R.A. 设备从模拟到数字的演变

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.07.002

V. Özkan, U. Gönner, S. Blasius

The Mandibular Anterior Repositioning Appliance (M.A.R.A.) is a Class II fixed functional appliance invented by Douglas E. Toll in 1991. Since then, several modifications to its design have been made. From our perspective as clinicians and long-term users, having treated approximately 1000 cases collectively, the M.A.R.A. appliance is undervalued as a highly effective Class II appliance. Its versatility in addressing individual treatment needs in Class II corrections can be likened to that of a Swiss army knife.

The simplicity of each component of the M.A.R.A. allows for easy individual adjustments, ensuring that function follows form. The optimization of the analog M.A.R.A. and its clinical reliability were informed by long-term experience, encompassing biomechanical, hygiene, and usability aspects. These insights were incorporated into the digital design process. In the past, the analog customization process in the lab was extensive and time-consuming.

The virtual design process, utilizing the OrthoApps module embedded in OnyxCeph software by Image Instruments (Germany), facilitates the implementation of patient needs. This allows for the creation of an individually tailored M.A.R.A. appliance in real-time, with instant access to the manufacturing company. Manual adjustments, once integral in the clinic, are now largely handled by computer technology. Consequently, chairside time has been significantly reduced.

The evolution of the M.A.R.A. from analog to digital has followed the principle of "less but better," aiming to understand what is relevant in use and seeking ways to improve.

下颌前牙复位矫治器（M.A.R.A.）是道格拉斯-E-托尔（Douglas E. Toll）于 1991 年发明的第二类固定功能矫治器。从那时起，对其设计进行了多次修改。作为临床医生和长期使用者，我们已经治疗了大约 1000 个病例，从我们的角度来看，M.A.R.A.矫治器作为一种高效的二类矫治器被低估了。它在满足 II 类矫治中的个性化治疗需求方面的多功能性可以比作一把瑞士军刀。

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引用次数: 0

Digital 3D imaging and its application to midpalatal suture maturation assessment 数字三维成像及其在腭中缝成熟度评估中的应用

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.06.012

Sachin Chhatwani , Daniel Hoffmann , Gholamreza Danesh , Lea Hoffmann , Vanessa Knode , Björn Ludwig

The incorporation of digital technologies in orthodontics, particularly in the area of maxillary expansion, represents a significant shift in research, diagnostic techniques, treatment planning, and the personalization of orthodontic devices. Rapid maxillary expansion (RME), which involves the separation of the midpalatal suture for maximal widening of the maxilla, is at the forefront of this digital integration. In complex cases where advanced suture maturation is present, miniscrew-assisted rapid palatal expansion (MARPE) and/or surgically assisted palatal expansion (SARPE) may be required. The use of cone beam computed tomography imaging and virtual appliance design allows for customized treatment plans to be created and implemented by clinicians. However, challenges still exist in the diagnostic process despite the use of digital technologies. This study aims to evaluate the midpalatal suture maturation stages of a group of patients using three-dimensional imaging and to assess the feasibility of using grayscale values for evaluating midpalatal suture maturation. One objective of this study is to establish a more objective method for assessing midpalatal suture maturation stages.

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引用次数: 0

FMii --- Table of Contents

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/S1073-8746(24)00146-4

引用次数: 0

A dual-layered 3D-printed appliance for pre-surgical orthopedics in infants with cleft lip and palate

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.11.002

Puneet Batra , Digant Thakkar , Nikita Mohelay , Sanjana Mathur

Objective

This clinical protocol paper introduces a dual-layered Presurgical Infant Orthopedics (PSIO) technique, designed to improve treatment outcomes for infants with Cleft Lip and Palate (CLP). The protocol utilizes a combination of an outer hard splint layer and an inner soft splint layer, fabricated using virtual construction and 3D printing. This approach aims to overcome the limitations of traditional PSIO methods by offering digitally customized, biocompatible appliances.

Materials and Method

The PSIO technique was applied to two cases: a 14-day-old male with bilateral CLP and a 26-day-old female with unilateral CLP on the left side. Fabrication involved intraoral scanning to create a digital model, followed by planning of molding vectors and 3D printing of the dual-layered appliances. Each layer was sequentially printed using distinct materials suited to their functional requirements. The treatment duration extended over five months for both cases.

Results

In the bilateral CLP case, the PSIO appliance facilitated increased lateral sulci distance, reduced intertuberosity width, medialization of the premaxilla, and approximation of the alveolar segments. This resulted in notable improvements in nasal symmetry and a reduction in the cleft gap prior to surgery. The unilateral CLP case demonstrated significant cleft gap reduction, enhanced nasal symmetry, and increased intercanine width.

Conclusions

The proposed dual-layered PSIO technique represents a significant advancement in the presurgical management of infants with CLP by incorporating digitally designed and directly 3D-printed appliances. This approach offers streamlined molding, minimizes caregiver burden, and reduces the risk of mucosal irritation while delivering precise and predictable treatment outcomes. Although promising, this protocol is based on case reports, and clinical trials are needed to further validate its effectiveness.

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引用次数: 0

Orthodontics at the crossroads: A closer look at occlusion, temporomandibular disorders and the role of cutting-edge technology 处于十字路口的正畸学：近距离观察咬合、颞下颌关节紊乱和尖端技术的作用

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.06.008

Sachin Chhatwani , Vanessa Knode , Stephan Christian Möhlhenrich , Werner Schupp , Gholamreza Danesh

The field of orthodontics strives to achieve an aesthetic, healthy, and stable occlusion. However, traditional practices often assess occlusion in maximum intercuspidation without adequately considering the biomechanics of the temporomandibular joint (TMJ), which can lead to overlooking critical occlusal factors. This perspective paper revisits the debate on the role of occlusion in temporomandibular disorders (TMD) and evaluates the efficacy of current treatment approaches, emphasizing the limitations of conventional methods and the lack of evidence supporting joint-oriented orthodontics. By integrating jaw tracking systems and digital workflows, a comprehensive evaluation of dynamic and static occlusion with realistic mandibular movement allows for a more individualized treatment approach to ensure optimal treatment outcomes.

正畸领域致力于实现美观、健康和稳定的咬合。然而，传统的做法往往是以最大牙间隙来评估咬合，而没有充分考虑颞下颌关节（TMJ）的生物力学，这可能会导致忽略关键的咬合因素。这篇视角论文重新讨论了咬合在颞下颌关节紊乱症（TMD）中的作用，并评估了当前治疗方法的有效性，强调了传统方法的局限性以及缺乏支持以关节为导向的正畸的证据。通过整合颌骨跟踪系统和数字化工作流程，对动态和静态咬合以及真实的下颌运动进行综合评估，可以采用更加个性化的治疗方法，确保获得最佳治疗效果。

引用次数: 0

Conventional versus digital workflows for palatal TADs? 腭部 TAD 的传统工作流程与数字化工作流程？

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Seminars in Orthodontics

Pub Date : 2025-02-01 DOI: 10.1053/j.sodo.2024.06.006

Benedict Wilmes, Dieter Drescher

Recently the feasibility of modern CAD/CAM workflows were described to manufacture insertion guides and metal printed appliances to improve the possibilities of palatal TAD anchorage. Both conventional and digital workflows are safe and efficacious and broaden the treatment options significantly. Advantages of digital workflow are that TADs and appliance can be inserted in just one appointment, more rigid appliances can be designed and a higher precision can be obtained due to the use of scanners. Disadvantages of the new digital workflow may be higher cost and more time that is needed for the incorporation of digital workflows and design of the appliances. Additionally, there is always need for a laboratory process, whilst some conventional TAD appliances can be bend and adapted directly chairside. Metal printed appliances are very rigid and not flexible and thus cannot be activated or bent easily, which may also be considered as a disadvantage compared to conventional TAD borne sliders.

引用次数: 0

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