摘要
目的比较腭裂术后硬腭前后部瘢痕对上颌骨生长的抑制情况。方法利用Ansys软件建立完全性与不完全性腭裂上颌骨三维有限元模型,在2个模型上分别分组施加相同大小、方向但不同受力区域的腭部瘢痕力,第一组在硬腭口腔面前1/4区施加,第二组在硬腭口腔面中前1/4区施加,第三组在硬腭口腔面中后1/4区施加,第四组在硬腭口腔面后1/4区施加。对各组位移形变情况进行比较。结果2个腭裂上颌骨模型中,各组上颌骨均出现形变,总位移及三维方向位移形变比较,均为第一组>第二组>第三组>第四组。结论腭裂术后硬腭不同部位瘢痕在三维方向上均对上颌骨生长产生抑制,其中前部瘢痕抑制程度大于后部。
Objective This study aimed to compare the inhibition of anterior and posterior scars of the hard palate on maxillary growth after cleft palate surgery.Methods Ansys was used to establish two 3D finite element models of maxilla with complete and incomplete cleft palate.The palatal scar force with same magnitude and direction but different areas was applied in four groups in the two models.The loading force was applied to 1/4 of the anterior oral surface of the hard palate(group 1),1/4 of the middle and anterior oral surface of the hard palate(group 2),1/4 of the middle and posterior oral surface of the hard palate(group 3),and 1/4 of the posterior oral surface of the hard palate(group 4).The displacement of each group after loading was analyzed and compared.Results In the two models,maxillary deformation occurred in all groups.The total displacement and 3D displacement comparison of each group was arranged as follows:group 1>group 2>group 3>group 4.Conclusion Scars from different parts of the hard palate after cleft palate surgery can inhibit maxillary growth in a 3D direction.The anterior scars have more serious inhibition than the posterior scars.
作者
黄威
张晓
李曼
宁春柳
吴珊珊
李向军
Huang Wei;Zhang Xiao;Li Man;Ning Chunliu;Wu Shanshan;Li Xiangjun(Dept.of Oral and Maxillofacial Surgery,School and Hospital of Stomatology,Hebei Medical University,Hebei Key Laboratory of Stomatology,Hebei Clinical Research Center for Oral Disease,Shijiazhuang 050017,China;Dept.of Orthodontics,Hexie Stomatological Hospital of Shijiazhuang,Shijiazhuang 050051,China)
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2022年第2期210-217,共8页
West China Journal of Stomatology
基金
河北省医学科学研究课题计划(20211075)。
关键词
腭部瘢痕
前后部位
上颌骨生长
三维有限元
palatal scar
anterior and posterior parts
maxillary growth
three-dimensional finite element
