Boggio Andrea, Cozzani Mauro, Anelli Fabrizio, Gastaldi Giorgio, Manni Antonio
Department of Dentistry, Vita-Salute San Raffaele University, Milan, Italy.
Istituto Giuseppe Cozzani, La Spezia, Italy.
Front Dent Med. 2025 Jul 7;6:1639784. doi: 10.3389/fdmed.2025.1639784. eCollection 2025.
Skeletal Class II malocclusion, commonly characterized by mandibular retrusion, affects a significant portion of the population and presents challenges in orthodontic correction. The Herbst Appliance has long been used for mandibular advancement, but traditional designs often lead to undesirable dental side effects and mechanical complications. This paper introduces the structural innovation and digital manufacturing of Full Digital Manni Telescopic Herbst (MTH) Appliance, a structurally innovative and digitally manufactured system aimed at enhancing clinical outcomes and reducing treatment failures.
Utilizing a fully digital workflow, including CAD/CAM design, intraoral scanning, and additive manufacturing, the MTH appliance integrates a full-coverage mandibular splint, digitally designed and precision-engineered maxillary and mandibular components.
The clinical implementation of the MTH appliance demonstrates excellent fit and high mechanical reliability, reducing lower incisor proclination and offering a proper vertical control. Complications such as debonding or fractures can be significantly reduced and digital reproducibility allows for fast component replacement when needed.
This design improves skeletal correction by enhancing anchorage, minimizing lower incisor proclination, and allowing precise vertical and sagittal control. The digital workflow not only improves fabrication accuracy and patient comfort but also facilitates easy component replacement and reduced chairside time. The MTH appliance sets a new benchmark in Class II treatment, blending digital precision with biomechanical effectiveness.
骨性II类错牙合通常以下颌后缩为特征，影响着相当一部分人群，并且在正畸矫治中存在挑战。Herbst矫治器长期以来一直用于下颌前导，但传统设计常常导致不良的牙齿副作用和机械并发症。本文介绍了全数字曼尼套筒式Herbst（MTH）矫治器的结构创新和数字化制造，这是一种旨在提高临床效果并减少治疗失败的结构创新型数字化制造系统。
MTH矫治器采用全数字工作流程，包括CAD/CAM设计、口内扫描和增材制造，集成了全覆盖式下颌夹板以及数字化设计和精密制造的上颌和下颌组件。
MTH矫治器的临床应用显示出极佳的贴合度和高机械可靠性，减少了下切牙前倾，并实现了适当的垂直控制。诸如脱粘或骨折等并发症可显著减少，并且数字可重复性允许在需要时快速更换组件。
这种设计通过增强支抗、最小化下切牙前倾并实现精确的垂直和矢状控制来改善骨骼矫治。数字工作流程不仅提高了制作精度和患者舒适度，还便于轻松更换组件并减少椅旁时间。MTH矫治器在II类错牙合治疗中树立了新的标杆，将数字精度与生物力学效能融为一体。
