中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (32): 5097-5102.doi: 10.12307/2021.210

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

改良数字化再定位导板和咬合导板辅助Le Fort Ⅰ型截骨上颌骨精准定位

郑海英1,郭秀娟1,侯雪阳2,张  磊1,张思庆1,李  会1,惠瑞宗1,耿海霞3   

  1. 济宁医学院附属医院,1口腔颌面外科,3口腔正畸科,山东省济宁市   272000;2济宁医学院·口腔医学院,山东省济宁市   272000

  • 收稿日期:2020-11-27 修回日期:2020-12-04 接受日期:2021-03-31 出版日期:2021-11-18 发布日期:2021-07-26
  • 通讯作者: 耿海霞,主任医师,硕士生导师,济宁医学院附属医院正畸科,山东省济宁市 272000
  • 作者简介:郑海英,女,1983年生,2005年滨州医学院毕业,主治医师,主要从事正颌外科方向的临床研究。
  • 基金资助:
    山东省医药卫生科技发展计划项目(2016WS0179),项目负责人:郑海英;山东省大学生创新创业训练计划项目(S202010443055),项目负责人:侯雪阳

Clinical application of improved digital guide and occlusal guide in the precise localization for maxillary Le Fort I osteotomy

Zheng Haiying1, Guo Xiujuan1, Hou Xueyang2, Zhang Lei1, Zhang Siqing1, Li Hui1, Hui Ruizong1, Geng Haixia3 #br#

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  1. 1Department of Oral and Maxillofacial Surgery, 3Department of Orthodontics, Affiliated Hospital of Jining Medical University, Jining 272000, Shandong Province, China; 2Stomatological Department of Jining Medical University, Jining 272000, Shandong Province, China 

  • Received:2020-11-27 Revised:2020-12-04 Accepted:2021-03-31 Online:2021-11-18 Published:2021-07-26
  • Contact: Geng Haixia, Chief physician, Master’s supervisor, Department of Orthodontics, Affiliated Hospital of Jining Medical University, Jining 272000, Shandong Province, China
  • About author:Zheng Haiying, Attending physician, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Jining Medical University, Jining 272000, Shandong Province, China
  • Supported by:
    the Medical and Health Scientific Development Program of Shandong Province, No. 2016WS0179 (to ZHY); Shandong University Student Innovation and Entrepreneurship Training Program, No. S202010443055 (to HXY)  

摘要:

文题释义:
上颌骨Le FortⅠ型截骨:按照上颌骨Le Fort骨折分类的Ⅰ型骨折线的走向和部位(梨状孔外侧斜向外下,经过牙槽突上方,延伸至双侧上颌翼突缝),截开上颌骨各壁,行Downfractrue操作,保护腭大血管神经束,保留腭侧粘骨膜软组织蒂,使离断的上颌骨段在三维方向上活动自如,以此矫正上颌骨的位置异常,并常与下颌骨的正颌外科手术配合矫治各种牙颌面畸形。
数字化定位导板(骨科定位片,粤深械备20190299号):是在数字化3D头模上按照手术方案设计的辅助进行截骨操作的3D打印数字化定位导板。使用数字化定位导板辅助进行上颌骨Le Fort Ⅰ型截骨操作可以更精准地截骨和上颌骨定位,并可避免损伤重要的解剖结构。

背景:上颌骨Le Fort Ⅰ型截骨是矫正上颌骨畸形及与颅骨位置关系异常最常见的手术方法,以往采用传统模型外科进行手术设计及手工制作咬合板的方法,人为操作误差大,难以精准地实施手术设计方案。近年来3D打印数字化定位导板在正颌外科中的应用显著提高了手术操作的精准度。
目的:探讨改良数字化定位导板在上颌骨Le Fort Ⅰ型截骨中的应用效果。
方法:选择20例因上颌骨发育异常行上颌骨LeFort Ⅰ型截骨的患者,术前行薄层颅颌面CT扫描,将CT数据导入Mimics 20.0软件建立数字化模型,并进行虚拟手术设计。同时设计打印出改良数字化上颌骨截骨导板、上颌骨再定位导板和咬合定位导板,术中联合应用3种导板行上颌骨的截骨及再定位。术后1周复查颅颌面CT并进行设计方案的术后验证。
结果与结论:①上颌骨模拟位置和术后实际位置距离偏差中位数的绝对值小于 1 mm,牙合平面角度偏差中位数的绝对值小于1°;②图像融合偏差分析中,均方根值=(0.789±0.275) mm,其均数小于1 mm;③提示应用改良数字化上颌骨截骨导板、上颌骨再定位导板及咬合定位导板能够安全、便捷、精准地完成上颌骨Le FortⅠ截骨。


https://orcid.org/0000-0003-3010-3900 (郑海英) 

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 关键词:数字化定位导板, 上颌骨, Le FortⅠ型截骨, 3D打印, 咬合定位

Abstract: BACKGROUND: Maxillary Le Fort I osteotomy is the most common method to correct the upper jaw deformity and abnormal position. Traditional model surgery is difficult to accurately implement the operation plan in the operation. In recent years, 3D-printed digital guides have been widely used in orthognathic surgery.
OBJECTIVE: To discuss the application efficacy of improved digital guide in the precise localization for maxillary Le Fort I osteotomy. 
METHODS: Twenty patients with maxillary hypoplasia who underwent Le Fort I osteotomy were enrolled. All the patients underwent preoperative cranial-maxillofacial CT scanning, and the CT data were imported into Mimics 20.0 software to establish a digital model, and the surgical virtual design was carried out. At the same time, the digital osteotomy guide, repositioning guide and occlusal guide were designed and printed, and these three guides were combined to perform the maxillary osteotomy and repositioning. One week after the operation, the cranial-maxillofacial CT was reviewed and the design scheme was verified. 
RESULTS AND CONCLUSION: The absolute value of the median distance deviation between the simulated maxillary position and the actual postoperative position was less than 1 mm. The absolute value of the median angle deviation in the occlusal plane was less than 1°. In the analysis of image fusion deviation, root mean square value was (0.789±0.275) mm, whose mean was less than 1 mm. These findings indicate that the combined application of digital guides in maxillary Le Fort I osteotomy is safe, convenient and accurate.


Key words: Key words: digital guide, maxillary, Le Fort I osteotomy, 3D printing, occlusal positioning

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