Liu Yun-song, Ye Hong-qiang, Gu Ming, Lv Long-wei, Sun Yu-chun, Zhao Yi-jiao, Zhou Yong-sheng
Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
Department of Prosthodonties, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Beijing Da Xue Xue Bao Yi Xue Ban. 2014 Feb 18;46(1):90-4.
To explore a new method of patient-involved digital design, esthetic outcome prediction and fabrication for the esthetic rehabilitation of anterior teeth, and to provide an alternative choice for the restoration of anterior teeth.
In this study, 32 patients with esthetic problems in their anterior teeth were included and divided into two groups randomly: the experimental group (16 patients) and control group (16 patients). In the experimental group, the dentition and facial images were obtained by intra-oral scanning and Three-dimensional (3D) facial scanning and then calibrated. The design of the rehabilitation and the esthetic outcome prediction were created by computer-aided design (CAD) software. After morphologic modification according to the patients' opinions, prostheses were fabricated according to the final design by computer-aided manufacturing (CAM) equipment. As for the control group, the regular design method was applied to restore their anterior teeth. The time consuming in the first insertion of each restoration in both groups was recorded. The quality of the prostheses was assessed by another prosthedontist. The satisfaction to prostheses and the facial appearance were evaluated by the patients.
The process of the patient-involved digital design and outcome anticipation was successfully established. The patients were satisfied with the esthetic effects of the anterior restoration made by the digital technique. The acceptance rate of the patients on the digital rehabilitation in the experimental group was 100%. There was no significant difference of the quality of the prostheses between the two groups. The satisfaction rate of the patients on prostheses and facial appearance was significantly higher in the experimental group than in the control group (P < 0.05). In addition, the time consuming in the first insertion of the experimental group was much shorter than that in the control group (P < 0.01).
The new method of the patient-involved digital design, esthetic outcome prediction and fabrication for the esthetic rehabilitation of anterior teeth is a practical technique. This method is useful in shortening the time consuming of the restoration of anterior teeth and improving the patient satisfaction with the esthetic outcome.
探索一种患者参与的前牙美学修复数字化设计、美学效果预测及制作的新方法，为前牙修复提供一种替代选择。
本研究纳入32例前牙存在美学问题的患者，随机分为两组：试验组（16例患者）和对照组（16例患者）。试验组通过口内扫描和三维（3D）面部扫描获取牙列及面部图像，然后进行校准。利用计算机辅助设计（CAD）软件进行修复设计及美学效果预测。根据患者意见进行形态修改后，通过计算机辅助制造（CAM）设备按照最终设计制作修复体。对照组采用常规设计方法修复前牙。记录两组每次修复初次戴入的耗时。由另一位修复医生评估修复体质量。患者对修复体及面部外观的满意度进行评价。
成功建立了患者参与的数字化设计及效果预期流程。患者对数字化技术制作的前牙修复美学效果满意。试验组患者对数字化修复的接受率为100%。两组修复体质量无显著差异。试验组患者对修复体及面部外观的满意度显著高于对照组（P<0.05）。此外，试验组初次戴入的耗时明显短于对照组（P<0.01）。
患者参与的前牙美学修复数字化设计、美学效果预测及制作的新方法是一种实用技术。该方法有助于缩短前牙修复的耗时，提高患者对美学效果的满意度。
