3种不同材料三维模型牙临床应用特点比较  

Comparison and analysis of clinical application characteristics of three-dimensional model teeth with three different materials

作　　者：李永清 张赟[2] 惠铄壹 惠小勇 许广杰 杨霞 肖伯承 侯锐 LI Yong-qing;ZHANG Yun;HUI Shuo-yi;HUI Xiao-yong;XU Guang-jie;YANG Xia;XIAO Bo-cheng;HOU Rui(State Key Laboratory of Oral&Maixillofacial Reconstruction and Regeneration,National Clinical Research Center for Oral Diseases,Shaanxi Clinical Research Center for Oral Diseases,Department of Oral and Maxillofacial Surgery,School of Stomatology,Air Force Military Medical University,Xi'an 710032,Shaanxi Province;Department of Oral&Maxillofacial Surgery,Qinghai University Affiliated Hospital,Xining 810000,Qinghai Province;State Key Laboratory of Oral&Maixillofacial Reconstruction and Regeneration,National Clinical Research Center for Oral Diseases,Shaanxi Clinical Research Center for Oral Diseases,Department of Orthodontics,School of Stomatology,Air Force Military Medical University,Xi'an 710032,Shaanxi Province;Department of Rocket Army Guangzhou Special Service Sanitarium,Guangzhou 510515,Guangdong Province;Department of Stomatology,Naval Hospital of Eastern Theater,Zhoushan 316000,Zhejiang Province,China)

机构地区：[1]口颌系统重建与再生全国重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔疾病临床医学研究中心,空军军医大学口腔医院口腔颌面外科,陕西西安710032 [2]青海大学附属医院口腔颌面外科,青海西宁810000 [3]口颌系统重建与再生全国重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔疾病临床医学研究中心,空军军医大学口腔医院口腔正畸科,陕西西安710032 [4]解放军火箭军广州特勤疗养中心门诊部,广东广州510515 [5]解放军东部战区海军医院口腔科,浙江舟山316000

出　　处：《中国口腔颌面外科杂志》2024年第3期239-244,共6页China Journal of Oral and Maxillofacial Surgery

基　　金：陕西省2022年重点研发计划(2022SF-147);口颌系统重建与再生全国重点实验室自主研究课题(2021ZA06);空军军医大学临床研究项目(2022LC2258)。

摘　　要：目的:应用口腔数字印模仪结合Mimics 19.0软件,分析3种不同材料三维模型牙的精度,并结合问卷调查比较其理化性能、经济学特点和临床应用特点。方法:对开展自体牙移植技术的医师进行问卷调查,了解其对不同供牙模型材料的认识;然后就各模型牙的材料使用性能、工艺性能、经济性、环境协调性等特点进行比较分析。搜集完整拔除的第三磨牙20颗,根据患者术前CBCT数据分别制作聚乳酸、光敏树脂、钴铬合金材料的三维牙模型,使用口腔数字印模仪扫描离体牙及各种材料的模型牙,数据用Mimics 19.0软件进行最佳拟合对齐和三维分析,对所得均方根(root mean square,RMS)误差值进行统计分析,明确精度差别。采用SPSS 22.0软件包对数据进行统计学分析。结果:问卷结果显示,95.2%的口腔医师认为供牙模型在自体牙移植术中用处很大且经常使用,90.5%的口腔医师认为材料成本以及无毒无公害最为重要。常用的3种不同材料的模型牙与第三磨牙的RMS值无统计学差异(P>0.05)。3种材料加工技术成熟、工艺性能良好、使用性能较好,其中聚乳酸价格低廉,兼具生物降解性,操作风险较低;光敏树脂价格中等,但其制造过程可能会产生毒性物质且操作风险较高;钴铬合金耐高温高压,但打印周期较长,成本较高。结论:聚乳酸、光敏树脂、钴铬合金3种材料的模型牙三维精度无显著差异,但综合3种材料模型牙的各种特点,聚乳酸的性价比最高,值得临床推广应用。PURPOSE:To analyze the accuracy of three-dimensional model teeth of three different materials by using oral digital impression instrument combined with Mimics 19.0 software,and compare their physical and chemical properties,economic characteristics and clinical application characteristics.METHODS:A questionnaire survey was conducted among doctors who carried out autotransplantation of tooth to determine their understanding of different donor model materials,and then the material performance,technological performance,economy and environmental coordination of each model tooth were compared and analyzed.A total of 20 fully extracted third molars were collected,and three-dimensional teeth models of polylactic acid,photosensitive resin and cobalt-chromium alloy were made according to preoperative CBCT data.The isolated teeth and model teeth of various materials were scanned by oral digital impression instrument,and the data were best fitted and analyzed by Mimics 19.0 software.The root mean square(RMS)error was statistically analyzed to make clear the difference in accuracy.SPSS 22.0 software package was used to analyze the data.RESULTS:The results of questionnaire showed that 95.2%of the dentists thought that the donor tooth model was very useful and often used in autotransplantation of tooth,and 90.5%of the dentists thought that the cost of materials and non-toxic and pollution-free were the most important.There was no significant difference between the RMS values of the model teeth and the third molars of the three commonly used materials,the three kinds of materials had mature processing technology,good technological properties and good use performance,among which polylactic acid had low price,biodegradability and low operation risk,while photosensitive resin had medium price,but its manufacturing process might produce toxic substances with high operation risk.Cobalt-chromium alloy was resistant to high temperature and high pressure,but the printing cycle was relatively long and the cost was high.CONCLUSIONS:There

关 键 词：供牙模型 3D打印材料 3D打印技术 三维精度 

分 类 号：R783.1[医药卫生—口腔医学]