Hristozova Maria, Dimitrova Mariya, Zlatev Stefan
Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria.
CAD/CAM Center of Dental Medicine, Research Institute, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria.
Dent J (Basel). 2024 Nov 21;12(12):373. doi: 10.3390/dj12120373.
: Digital diagnostic waxing is a contemporary alternative to the conventional wax-up method. This study aims to evaluate the impact of both techniques on the perceived frontal symmetry in aesthetic treatment planning. Dental symmetry significantly influences smile perception and, consequently, the acceptance of treatment outcomes, highlighting its clinical importance in restorative dentistry. : A total of 100 teeth were measured, with 50 ( = 50) waxed up using traditional modeling techniques and 50 using a face-guided digital approach. The study involved ten patients requiring fixed restorations in the aesthetic zone. Both digital and conventional wax-ups were performed for each participant. Gypsum models with wax-ups were digitized and superimposed onto the digital diagnostic design using 3Shape Dental Designer Studio software, Version 2023 (3Shape, Copenhagen, Denmark). Screenshots of the frontal view were captured, and the width of each morphologically altered tooth was measured using ImageJ software Version 1.54 (National Institutes of Health, Bethesda, MD, USA). : The results indicated no statistically significant difference in symmetry between the right and left sides achieved by the two diagnostic approaches (t-value = -1.89, -value = 0.07). The perceived symmetry of morphologically modified frontal teeth, as achieved by digital and conventional waxing, was found to be comparable. : Digital diagnostic planning is validated as a reliable alternative to the conventional wax-up method, offering comparable accuracy in achieving dental symmetry while potentially enhancing efficiency and precision in the aesthetic treatment planning process. This result underscores the potential of digital technologies to streamline clinical workflows and improve patient outcomes. Clinically, achieving symmetry in the aesthetic zone is crucial for patient satisfaction and acceptance of restorative procedures, emphasizing the need for continued integration of digital tools in dental practice.
数字诊断蜡型制作是传统蜡型制作方法的一种现代替代方法。本研究旨在评估这两种技术在美学治疗计划中对感知到的正面对称性的影响。牙齿对称性显著影响微笑感知，进而影响对治疗效果的接受度，凸显了其在修复牙科中的临床重要性。
共测量了100颗牙齿，其中50颗（n = 50）采用传统建模技术进行蜡型制作，50颗采用面部引导数字方法进行蜡型制作。该研究涉及10名需要在美学区域进行固定修复的患者。为每位参与者同时进行了数字和传统蜡型制作。将带有蜡型的石膏模型数字化，并使用3Shape Dental Designer Studio软件2023版（丹麦哥本哈根的3Shape公司）叠加到数字诊断设计上。拍摄正面视图的屏幕截图，并使用美国国立卫生研究院（位于马里兰州贝塞斯达）的ImageJ软件1.54版测量每颗形态改变牙齿的宽度。
结果表明，两种诊断方法在左右两侧实现的对称性上没有统计学显著差异（t值 = -1.89，p值 = 0.07）。发现通过数字和传统蜡型制作实现的形态改变的前牙的感知对称性具有可比性。
数字诊断计划被验证为传统蜡型制作方法的可靠替代方法，在实现牙齿对称性方面具有相当的准确性，同时可能提高美学治疗计划过程的效率和精度。这一结果强调了数字技术简化临床工作流程和改善患者治疗效果的潜力。临床上，在美学区域实现对称性对于患者对修复程序的满意度和接受度至关重要，强调了在牙科实践中持续整合数字工具的必要性。
