Unkovskiy Alexey, Beuer Florian, Hey Jeremias, Bomze Daniel, Schmidt Franziska
Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, Berlin, Germany.
Department of Dental Surgery, Sechenov First Moscow State Medical University, Moscow, Russia.
J Esthet Restor Dent. 2025 Jun;37(6):1311-1315. doi: 10.1111/jerd.13427. Epub 2025 Jan 29.
To test the clinical application of LCM-printed lithium disilicate veneers.
A female patient with tooth wear was scanned with intraoral scanner (Prime Scan, Dentsply Sirona). The six non-prep veneers were designed (DentalCAD, Exocad) and printed from lithium disilicate with an LCM-printer with the thickness of 0.1-0.2 mm (CeraFab System S65 Medical, Lithoz GmbH). The green parts after printing were cleaned of the excess slurry and debindered in a furnace (Nabertherm, Lilienthal) until 430°C with a dwell time of 5 h to remove all polymeric binder. The resulting parts were sintered in an oven (Programat P510, Ivoclar Vivadent AG) at a temperature of 900°C. The supports were removed with a dental technician handpiece (Perfecta 900, W & H). The final restorations were stained (e-max Ceram, Ivoclar Vivadent AG) by a master dental technician.
The six LCM-printed ultra-thin non-prep lithium disilicate veneers were tried-in on the patient using a try-in glycerin gel (Ivoclar Vivadent, Schaan, Lichtenstein) and demonstrated excellent fit and esthetics. LCM technology enabled the production of ultra-thin non-prep lithium disilicate veneers with layer thicknesses of down to 0.1 mm.
The 3D-printing of ultra-thin non-prep veneers is technically feasible and provides an adequate clinical outcome. Additive manufacturing of ultra-thin non-prep lithium disilicate veneers may pose a valid alternative to conventional and subtractive manufacturing.
测试激光辅助制造（LCM）打印的二硅酸锂贴面的临床应用。
使用口腔内扫描仪（Prime Scan，登士柏西诺德公司）对一名患有牙齿磨损的女性患者进行扫描。设计了六颗无需预备牙体的贴面（使用DentalCAD软件，Exocad公司），并使用LCM打印机从二硅酸锂材料打印出来，厚度为0.1 - 0.2毫米（CeraFab System S65 Medical，Lithoz GmbH公司）。打印后的绿色部件清除多余的浆料，并在炉中（Nabertherm公司，利林塔尔）脱脂至430°C，保温5小时以去除所有聚合物粘结剂。所得部件在烤箱（Programat P510，义获嘉伟瓦登特公司）中于900°C烧结。使用牙科技术人员手持工具（Perfecta 900，W & H公司）去除支撑物。最终修复体由高级牙科技术人员进行染色（e-max Ceram，义获嘉伟瓦登特公司）。
使用试戴甘油凝胶（义获嘉伟瓦登特公司，沙恩，列支敦士登）在患者口中试戴了六颗LCM打印的超薄无需预备牙体的二硅酸锂贴面，结果显示贴合度和美观性极佳。LCM技术能够生产出层厚低至0.1毫米 的超薄无需预备牙体的二硅酸锂贴面。
超薄无需预备牙体贴面的3D打印在技术上是可行的，并能提供良好的临床效果。超薄无需预备牙体的二硅酸锂贴面的增材制造可能是传统制造和减法制造的有效替代方案。
