Department of Stomatology, Affiliated Hospital of Jiangnan University, Wuxi, China.
Wuxi Medical College, Jiangnan University, Wuxi, China.
Medicine (Baltimore). 2024 Nov 29;103(48):e40460. doi: 10.1097/MD.0000000000040460.
This study aimed to analyze the effect of 3D printing temporary crowns on the single and continuous loss restoration of posterior teeth during secondary implant surgery.
This study adopted a single-center, randomized, single-blind, parallel-controlled trial design. Thirty patients who were admitted to the Department of Stomatology, Affiliated Hospital of Jiangnan University between January 2020 and February 2023 and who had >2 consecutive missing posterior teeth were implanted with the same implant system. A simple random method was adopted to assign 30 patients to group A (using 3D-printed temporary crowns) and group B (control group) in a 1:1 ratio, with 15 patients in each group. The final prosthesis in Experimental group A was done based on the adjustment of the temporary crown and tooth. Both groups were compared based on total time, accuracy, and patient satisfaction of the final prosthesis. Additionally, 30 patients who had undergone single posterior tooth implantation during the same period were selected as the study objects and divided into 2 groups using the random comparison table method. The patients in the experimental group C (15 cases) were provided with 3D-printed temporary crowns, and the other 15 patients were assigned to the control group D (15 cases).
In the experimental group A, the total time spent on dentures was 10.1 ± 1.3 minutes, which was lesser compared with that spent in the control group B (P < .05). Experimental group A exhibited a significantly higher accuracy of prosthesis (P < .05), as well as significantly higher satisfaction of patients (P < .05). Regarding the food impaction rate, after formal implantation and restoration, the food impaction rate of the experimental group C at 1 month and 6 months was compared with that of the traditional 2-stage surgery group D.
Three-dimensional printing temporary crowns exhibited significantly better therapeutic effects for restoration in patients with continuous missing implants in posterior teeth. 3D printing temporary crowns in patients with single posterior tooth implant restoration showed promising results, which improved food immobilization and actively and effectively reduced the complications associated with a single posterior tooth implant.
本研究旨在分析 3D 打印临时冠在后牙二次种植手术中单牙和连续缺牙修复中单次和连续丢失修复的效果。
本研究采用单中心、随机、单盲、平行对照试验设计。2020 年 1 月至 2023 年 2 月期间在江南大学附属医院口腔科就诊，且有>2 颗连续缺失后牙的 30 名患者，采用相同的种植系统进行种植。采用简单随机法将 30 名患者按 1:1 比例分为 A 组（使用 3D 打印临时冠）和 B 组（对照组），每组 15 例。实验组 A 的最终修复体是基于临时冠和牙齿的调整。两组均根据最终修复体的总时间、准确性和患者满意度进行比较。此外，同期选择 30 例单颗后牙种植患者作为研究对象，采用随机对照表法分为两组。实验组 C（15 例）患者佩戴 3D 打印临时冠，另 15 例患者分为对照组 D（15 例）。
实验组 A 义齿总用时 10.1±1.3 分钟，少于对照组 B（P<.05）。实验组 A 的修复体准确性显著更高（P<.05），患者满意度也显著更高（P<.05）。关于食物嵌塞率，在正式种植和修复后，实验组 C 在 1 个月和 6 个月时的食物嵌塞率与传统 2 期手术组 D 进行比较。
3D 打印临时冠在后牙连续缺失种植修复患者中表现出明显更好的治疗效果。3D 打印临时冠在单颗后牙种植修复患者中表现出良好的效果，改善了食物固定，并积极有效地减少了单颗后牙种植相关并发症。
