Accuracy of Guided Implant Surgery Using an Intraoral Scanner and Desktop 3D-Printed Tooth-Supported Guides
Accuracy of Guided Implant Surgery Using an Intraoral Scanner and Desktop 3D-Printed Tooth-Supported Guides
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DOI：
10.11607/jomi.9432
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发表时间：
2022-05-01
影响因子：
2
通讯作者：
Vandeweghe, Stefan
中科院分区：
文献类型：
--
作者：
D'haese, Rani;Vrombaut, Tom;Vandeweghe, Stefan
目的：桌面3D打印机的日益普及使引导手术变得更容易。这项体外研究的目的是评估通过3D打印的牙齿支持导向器进行单牙引导种植手术的准确性。材料和方法：使用用于引导种植手术的规划软件(Exoplan，Exocad)，对15个种植体进行虚拟计划，以替换缺失的第一下颌磨牙。使用台式3D打印机(Asiga Max UV)设计和制造了牙齿支撑导轨。种植体被完全导向地放置在树脂铸型中，并通过数字印模来记录它们的位置。将此扫描结果与计划软件中的虚拟种植体位置进行比较，并使用计量学软件评估导向器的内部适合性。为了测量精度，一次规划执行了六次。结果：真性角偏差平均2.63度(SD：1.69°；范围0.38~5.99度)，冠状面偏差平均0.52 mm(SD：0.25；范围0.09~1.07 mm)，根尖偏差平均0.90 mm(SD：0.47；范围0.14~1.74 mm)。颊舌向绝对平均偏差为0.70 mm(SD：0.42，0.12~1.65 mm；P
Purpose: The increasing popularity of desktop 3D printers makes guided surgery more accessible. The aim of this in vitro study was to evaluate the accuracy of single-tooth guided implant surgery by means of a 3D-printed tooth-supported guide. Materials and Methods: Fifteen implants were virtually planned to replace a missing first mandibular molar, using planning software for guided implant surgery (Exoplan, Exocad). A tooth-supported guide was designed and manufactured using a desktop 3D printer (Asiga MAX UV). The implants were placed fully guided in resin casts, and a digital impression was taken to register their position. This scan was compared with the virtual implant position in the planning software, and the internal fit of the guides was evaluated using metrology software. One planning was executed six times for measuring precision. Results: For trueness, the mean angular deviation was 2.63 degrees (SD: 1.69 degrees; range: 0.38 to 5.99 degrees), the mean coronal deviation was 0.52 mm (SD: 0.25; range: 0.09 mm to 1.07 mm), and the mean apical deviation was 0.90 mm (SD: 0.47; range: 0.14 to 1.74 mm). The absolute apical mean deviation in the buccolingual direction (x-axis) was 0.70 mm (SD: 0.42, 0.12 to 1.65 mm; P