快速成型打印技术在唇腭裂矫形中的应用

发布时间：2018-07-03 18:22

本文选题：快速成型技术 + 唇腭裂　；参考：《中国修复重建外科杂志》2017年12期

【摘要】：目的探讨快速成型技术用于制备唇腭裂矫形术前鼻齿槽矫治器的可行性及效果。方法以2014年6月—2016年9月收治的17例单侧完全性唇腭裂患儿作为试验组,通过数字化模拟唇腭裂矫治过程,设计数字化模型,并采用快速成型技术制备不同治疗阶段的鼻齿槽矫治器,进行术前矫形。与同期采用传统鼻齿槽矫治器及方法治疗的22例患儿(对照组)进行比较。两组患儿性别、年龄、唇腭裂侧别、初始裂隙宽度比较,差异无统计学意义(P0.05)。记录两组矫治期间门诊次数、矫治时间以及并发症发生情况,测量矫治前后齿槽裂隙变化相关指标。结果矫治期间,试验组门诊次数显著少于对照组(P0.05),两组矫治时间比较差异无统计学意义(P0.05)。对照组矫治期间发生组织皮疹16例(72.2%)、黏膜溃疡3例(13.6%)、口内出血1例(4.5%),矫治后发生1例(4.5%)牙槽弓形态呈T形不对称;试验组发生组织皮疹11例(64.7%)、黏膜溃疡3例(17.6%)。两组并发症发生率比较,差异均无统计学意义(P0.05)。矫治后,两组齿槽前方裂隙宽度、水平裂隙宽度、矢状裂隙宽度、健侧齿槽近中弧度角及齿槽前缘与后齿槽基线夹角、唇系带点至中线距离均较矫治前减小(P0.05),裂隙缘最前方交角、唇系带点与后方齿槽基线夹角较矫治前增大(P0.05)。但以上指标矫治前后差值组间比较,差异均无统计学意义(P0.05)。矫治后,两组后方齿槽宽度、中间齿槽宽度、垂直裂隙宽度、患侧齿槽近中弧度角及齿槽前缘与后齿槽基线夹角与矫治前比较,差异均无统计学意义(P0.05)。结论将快速成型技术制作的鼻齿槽矫治器用于唇腭裂术前矫形,其疗效与传统鼻齿槽矫治器相似,但可减少门诊次数,为唇腭裂序列治疗提供一种更可靠和简便的方法。
[Abstract]:Objective to investigate the feasibility and effect of rapid prototyping for the preparation of nasal alveolar orthopedic appliance for cleft lip and palate. Methods from June 2014 to September 2016, 17 children with unilateral complete cleft lip and palate were selected as experimental group. Digital model was designed through digital simulation of cleft lip and palate correction process. The rhinoalveolar orthodontics in different stages of treatment were prepared by rapid prototyping technique. Compared with 22 children (control group) who were treated with traditional nasal alveolar appliance and method at the same time. There was no significant difference in sex, age, cleft lip and palate side and width of initial fissure between the two groups (P0.05). The frequency of outpatient treatment, the time of treatment and the occurrence of complications were recorded during the two groups. The relative indexes of alveolar fissure before and after treatment were measured. Results during the treatment period, the number of outpatient service in the experimental group was significantly less than that in the control group (P0.05), and there was no significant difference in the treatment time between the two groups (P0.05). In the control group, 16 cases (72.2%) had tissue rash, 3 cases (13.6%) had mucosal ulcer, 1 case (4.5%) had intraoral hemorrhage, 1 case (4.5%) had T-shaped alveolar arch after correction, 11 cases (64.7%) had tissue rash and 3 cases (17.6%) had mucosal ulcer. There was no significant difference in the incidence of complications between the two groups (P0.05). After correction, the width of front fissure, horizontal fissure, sagittal fissure, the angle between the front edge of the tooth groove and the base line of the posterior slot, the angle of the center arc of the straight side slot, and the angle between the front edge of the tooth groove and the base line of the posterior slot were obtained. The distance from the point of lip band to the midline was smaller than that before treatment (P0.05), and the angle between the point of labial band and the base line of posterior groove was larger than that before treatment (P0.05). However, there was no significant difference between the two groups before and after treatment (P0.05). After correction, there was no significant difference between the two groups in the width of the rear slot, the width of the middle slot, the width of vertical fissure, the angle between the margin of the affected side and the baseline of the posterior slot and the angle between the front edge of the tooth groove and the base line of the posterior slot (P0.05). Conclusion the rhinoalveolar orthodontic appliance made by rapid prototyping technique is similar to that of the traditional rhinoalveolar orthopedic appliance for cleft lip and palate, but it can reduce the frequency of outpatient service and provide a more reliable and simple method for the treatment of cleft lip and palate sequence.
【作者单位】：浙江省中医院整形美容外科;上海市第九人民医院整复外科;
【分类号】：R782.2

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