Basha Shaik Riyaz, Dondla Shravani, Channamsetty Praveena, Satyavathi Badugu, Reddy Satheesh Simha, K Srivani, Agarwal Amisha
Department of, Malla Reddy Institute of Dental Sciences, Malla Reddy Vishwavidyapeeth, Hyderabad, Telangana, India.
Sri Venkata Sai Dental College, Mahbubnagar, Telangana, India.
Bioinformation. 2025 Jun 30;21(6):1370-1374. doi: 10.6026/973206300211370. eCollection 2025.
The influence of abutment angulation on implant impression accuracy by comparing Closed Tray and Open Tray techniques in a clinical setting is of interest to dentists. Hence, a prospective cross-sectional analysis was conducted on 60 patients receiving implant-supported prostheses, stratified by abutment angulation (0°C, 15°Cand 30-45°C). Impressions were made using polyvinyl siloxane and accuracy was quantified via mean MM discrepancy and procedural performance scores. The Open Tray technique demonstrated superior dimensional fidelity (mean discrepancy = 0.46 mm) versus the Closed Tray (0.72 mm), with significantly higher rates of clinically acceptable impressions and procedural efficacy. Logistic regression identified procedural proficiency as a strong predictor of impression precision. These findings underscore the diagnostic superiority of the Open Tray technique, particularly in angulated scenarios, reinforcing its value in enhancing prosthetic accuracy and clinical predictability.
在临床环境中，通过比较封闭式托盘和开放式托盘技术，基台角度对种植体印模准确性的影响是牙医们感兴趣的。因此，对60名接受种植体支持修复体的患者进行了前瞻性横断面分析，根据基台角度（0°、15°和30 - 45°）进行分层。使用聚乙烯基硅氧烷制取印模，并通过平均毫米差异和操作性能评分对准确性进行量化。与封闭式托盘（0.72毫米）相比，开放式托盘技术显示出更高的尺寸保真度（平均差异 = 0.46毫米），临床上可接受的印模率和操作效率显著更高。逻辑回归确定操作熟练程度是印模精度的有力预测指标。这些发现强调了开放式托盘技术的诊断优势，特别是在有角度的情况下，强化了其在提高修复准确性和临床可预测性方面的价值。
