Yoon Youngjae, Lee Myung-Jin, Kang Inyeong, Oh Sanghwan
Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea.
Department of Dental Hygiene, Division of Health Science, Baekseok University, Cheonan 31065, Republic of Korea.
Materials (Basel). 2023 Jun 30;16(13):4756. doi: 10.3390/ma16134756.
The biomechanical effects of dental tissue according to various dental crown materials were investigated using finite element analysis. Bone, prepared tooth, root canal, and periodontal ligament were modeled based on computed tomography. Depending on the characteristics of the crown material, it was classified into zirconia, hybrid ceramic, gold alloy, and acrylic resin. A loading force of 200 N was applied in the vertical direction to the occlusal surface of the crown, and analysis was performed under the condition that all interfaces were tied. The results demonstrate that the highest von Mises stress was shown in the prepared tooth of the acrylic resin model, which is a temporary prosthesis, and the pulpal pressure was also the highest. Additionally, among the final prosthesis, the highest stress was shown in the hybrid ceramic model prepared teeth. The properties of restoration materials can be a factor influencing the tooth structure. Thus, in order to make a correct decision when selecting a material for restorative treatment, it is necessary to understand, analyze, and evaluate the properties of these restoration materials.
使用有限元分析研究了根据各种牙冠材料的牙科组织的生物力学效应。基于计算机断层扫描对骨、预备牙、根管和牙周韧带进行建模。根据牙冠材料的特性，将其分为氧化锆、混合陶瓷、金合金和丙烯酸树脂。在垂直方向上对牙冠的咬合面施加200 N的加载力，并在所有界面均绑定的条件下进行分析。结果表明，临时修复体丙烯酸树脂模型的预备牙中显示出最高的冯·米塞斯应力，牙髓压力也最高。此外，在最终修复体中，混合陶瓷模型的预备牙中显示出最高应力。修复材料的性能可能是影响牙齿结构的一个因素。因此，为了在选择修复治疗材料时做出正确的决定，有必要了解、分析和评估这些修复材料的性能。
