Patzelt Sebastian Berthold Maximilian, Krügel Marei, Wesemann Christian, Pieralli Stefano, Nold Julian, Spies Benedikt Christopher, Vach Kirstin, Kohal Ralf-Joachim
Private Dental Clinic, Am Dorfplatz 3, 78658 Zimmern ob Rottweil, Germany.
Medical Center-University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany.
Materials (Basel). 2022 Jan 30;15(3):1085. doi: 10.3390/ma15031085.
The purpose of the study was to compare conventional to digital workflows of occlusal splint production regarding time efficiency, overall fit, and wear. Fifteen Michigan splints were fabricated with a conventional and digital method. The duration for the dentist's and the dental technician's workload was recorded. Subsequently, the overall fit was examined with a four-level score (1-4). Paired t-tests were used to compare the time results for the conventional and digital workflows and the sign test to compare the overall fit. The mean time (16 min 58 s) for computerized optical impressions was longer than for conventional impressions (6 min 59 s; = 0.0001). However, the dental technician needed significantly less mean time for the digital splint production (47 min 52 s) than for the conventional (163 min 32 s; = 0.001). The overall fit of the digitally-fabricated splints was significantly better compared to the conventionally-fabricated splints ( = 0.002). There was no impact of the different materials used in the conventional and digital workflow on the wear ( = 0.26). The results suggest that the digital workflow for the production of occlusal splints is more time efficient and leads to a better fit than the conventional workflow.
本研究的目的是比较咬合板制作的传统工作流程与数字工作流程在时间效率、整体贴合度和磨损方面的差异。采用传统方法和数字方法制作了15个密歇根式咬合板。记录了牙医和牙科技师的工作量持续时间。随后,用四级评分(1 - 4)检查整体贴合度。采用配对t检验比较传统工作流程和数字工作流程的时间结果,采用符号检验比较整体贴合度。计算机化光学印模的平均时间(16分58秒)比传统印模(6分59秒;P = 0.0001)长。然而,牙科技师制作数字咬合板所需的平均时间(47分52秒)明显少于传统咬合板(163分32秒;P = 0.001)。与传统制作的咬合板相比,数字制作的咬合板的整体贴合度明显更好(P = 0.002)。传统工作流程和数字工作流程中使用的不同材料对磨损没有影响(P = 0.26)。结果表明,咬合板制作的数字工作流程比传统工作流程更节省时间,且贴合度更好。