腭裂引起反的前牵引与下颌髁突位置关系的初步研究

目的　评价应用口外弓加面具对唇腭裂继发骨性反牙合畸形进行早期阻断性治疗后 ,下颌骨髁突位置的变化。方法　对 8例患者治疗前和治疗 6个月的薛氏位片进行分析 ,比较颞下颌关节 (TMJ)前、上、后间隙的宽度。结果　治疗前后双侧TMJ的 3个间隙均无明显改变 (P >0 .0 5 )。结论　应用口外弓加面具作上颌骨前牵引后 ,未发现髁突位置的明显改变。     

口外前牵引联合颏兜矫治Angle Ⅲ骨性反He8例报告

目的：总结应用口外前牵引联合颏兜矫治混合牙列期和恒牙早期安氏Ⅲ类骨性反He的效果。方法：7—12岁安氏Ⅲ类骨性的反He8例，用口外前牵引联合颏兜矫治。结果：上颌骨与上牙弓均有前移，上颌长度增加，A点前移，上切牙唇倾度减小；下切牙舌侧倾斜；上下颌骨矢状关系逐渐趋向正常，凹面型得到改善。结论：口外前牵引联合颏兜是矫治混合牙列期和恒牙早期安氏Ⅲ类骨性反He的有效方法。     

唇腭裂术后反He与颞下颌关节紊乱综合征

为了探讨唇后反Ｈｅ与颞下凳关节紊乱综合征的关系，通过对２９名单侧完全性唇腭裂术后反Ｈｅ患者进行临床检查，下颌运动轨迹描记，关节薛氏位Ｘ线照像，对该类患者的颞下颌关节状况进行了研究。     

错He与颞下颌关节症状的相关研究

错He是否能引起颞下颌关节紊乱病(temporomandibular joint disorders，TMD)一直是临床有争议的问题。为了深入探讨其间关系，本项研究采用改良的Helkimo指数，对127例错He患者与健康人进行了调查和研究。     

髁突位置与颞下颌关节盘移位关系的研究

在颞下颌关节内紊乱（TMJID）的患者中髁突位置和关节盘移位之间的关系一直是研究者所关注的问题,许多学者从不同的角度进行了探索,但对TMJID患者髁突在关节窝中的位置及其临床意义存在争议。本文就TMJID概况、髁突位置与关节盘移位的关系及其在TMJID诊断中的意义作一综述。     

上颌前方牵引治疗青少年骨性反He的临床研究

目的分析上颌前方牵引矫治青春快速生长期减速阶段的安氏Ⅲ类错牙合前牙反牙合的可行性及疗效.方法选择12例安氏Ⅲ类错牙合前牙反牙合患者,在治疗前及使用上颌前方牵引器械解除反牙合后,摄头颅侧位定位片,并进行投影测量分析.结果覆盖增加(3.90±0.40)mm(P＜0.001),A点矢状方向增加(1.80±0.37)mm(P＜0.05),B点矢状方向减少(0.60±0.19)mm(P＜0.05),Wits增加(3.10±0.57)mm(P＜0.05),ANB增加(3.00±0.57)°(P＜0.05),其中41%为骨性改变,59%为牙性代偿.结论上颌前方牵引对于错过青春快速生长期,由上颌骨发育不足造成的安氏Ⅲ类骨性错牙合仍是有效的.     

Study on the relationship between congenital toxoplasmosis and monsters of cleft lip and palate accompanied by multiple malformation]

Toxoplasomsis is a zoonotic disease resulted from toxoplasma infection,This paper reports ten monsters that suffered from congenital cleft lip and palate accompanied antigens(RCEP,COA test) were positive.Toxoplasma antibodies (IHA,IFA,RIPEGA test) in mothers' serum were also positive.Microscopic examination revealed toxoplasma trophozoites and pseudocysts in the tissue of cleft lip and palate as well as viscera.In addition,We used SPA method to reveal toxoplasma in the tissue.We indicate that toxoplasma infection of pregnant women is one of the cause of monsters.It is the important biological factor and closely related to eugenics.Stomatologists must pay attention to this etiology.     

Effects of growth on maxillary distraction osteogenesis in cleft lip and palate

PurposeThe objective was to analyze the effects of growth on the long-term result of maxillary distraction osteogenesis (DO) in cleft lip and palate (CLP).Patients and methodsRetrospective study of 24 CLP cases with long-term follow-up operated for maxillary DO using the Polley and Figueroa technique: 10 patients were distracted during growth, while 14 patients were operated after their growth spurt. Preoperative (T0), 6–12 months postoperative (T1), and ≥4 years postoperative (T2) cephalometric radiographs were evaluated. A classical cephalometric analysis was used to assess the treatment stability, and a Procrustes superimposition method was performed to assess local changes in the maxilla and the mandible.ResultsAt T0, the mean age was of 11.9 ± 1.4 years for growing patient, and 17.9 ± 3.5 years for patient treated after their growth spurt (P < 0.001). Between T0 and T1, a greater increase of the SNA was shown in growing patients (P = 0.036), but the relapse was more important between T1 and T2, with a significant decrease of the SNA (P = 0.002) and ANB (P = 0.032) compared to the patients treated after their growth spurt. Although not significant, growing patients showed greater rotations of their palatal plane and mandibular plane.ConclusionsMaxillary DO in CLP does not correct the growth deficit inherent to the pathology. Overcorrection of at least 20% is advised during growth.     

牵引成骨术治疗唇腭裂继发颌骨畸形稳定性的研究进展

牵引成骨术（distraction osteogenesis,DO）在口腔颌面外科的应用越来越广,为唇腭裂继发颌骨畸形治疗提供了新的手段。DO按牵引类型主要分为内置式牵引（intraoral distraction osteogenesis, IDO）和外置式牵引（extraoral distraction osteogenesis, EDO）2种,在大距离前徙上颌骨时,唇腭裂牵引成骨术后的长期稳定性和复发的报道还很少。本文就牵引成骨治疗唇腭裂继发颌骨畸形术后的长期稳定性的临床研究进展作一综述。     

Treatment of severe maxillary hypoplasia with oligodontia and complete bilateral cleft lip and palate by maxillary anterior segmental distraction osteogenesis

Effective maxillary advance treatment is difficult to achieve without impairing velopharyngeal function in patients with severe maxillary deficiency. We describe successful orthodontic treatment using maxillary anterior segmental distraction osteogenesis (MASDO) in a patient with cleft lip and palate. A 20-year-old woman with bilateral cleft lip and palate, multiple congenitally missing teeth, reduced maxilla, concave soft-tissue profile, and skeletal Class III jaw relationship was treated with a combination of orthodontic treatment and MASDO. After treatment, the anterior maxilla was displaced forward with new bone formation induced in the distraction gap for insertion of dental implants. Maxillary hypoplasia was successfully treated while preserving the velopharyngeal function with MASDO. We suggest that MASDO is useful for patients with severe maxillary hypoplasia.     

Comparative study on the maxillary symmetry in preoperatively treated children with cleft lip and cleft palate]

Comparative studies on the palatal symmetry in healthy new-born babies and in new-born babies with cheilognathopalatoschisis revealed cleft palates with a high degree of asymmetry. Therefore, it is reasonable to measure the treatment results achieved in cleft patients against the degree of palatal symmetry attained. This evaluation was performed in 30 subjects with unilateral complete cleft and in 20 individuals with bilateral complete cleft.     

唇腭裂新生儿的腭裂数字化模型方法

目的:利用硅橡胶印模和结构光三维扫描技术制取唇腭裂新生儿出生后第2天的腭裂表面形态数字化模型.方法:采用特殊重体硅橡胶印模材料制取患儿腭裂印模,通过3DSS扫描仪对石膏模型进行三维数据采集,经逆向工程软件处理数据,建立腭裂的数字化模型.结果:结构光扫描系统采得的腭裂数字化模型形态清晰,在软件平台上可以自由编辑和测量.结论:利用结构光三维扫描技术可以获取理想的新生儿腭裂数字化模型,该模型具有快捷、能长期存储等特点.     

单侧完全性唇腭裂儿童患侧前牙发育研究

目的 分析单侧完全性唇腭裂儿童（ＵＣＬＰ）患侧尖牙发育特点。方法 ５３例８～１２岁ＵＣＬＰ患儿,采用Ｂｒｏｕｗｅｒｓ方法,测量并比较术前曲面断层中健侧及患侧恒上尖牙长度,并观察恒上切牙缺失和畸形情况。结果 ＵＣＬＰ患儿健、患侧恒上尖牙长度有显著性差异（Ｐ〈０．０１）;患侧侧切牙缺失３５．８％,患侧上中、侧切牙畸形４７．２％。结论 患者患侧恒上尖牙发育明显迟缓,并伴有不同程度患侧侧切牙缺失、中、侧切     

A longitudinal cephalometric study on unilateral cleft lip and palate subjects.

The facial growth of nine male and 9 female subjects with surgically repaired unilateral cleft lips and palates was compared to that of 20 male and 15 female non-cleft individuals. Different cephalometric landmarks were identified on the cranial base and maxillary complex, and eleven different parameters were measured. Univariate longitudinal growth profile and mean vector analyses as well as multivariate and cross-sectional comparisons were performed between male, female, and combined normal and cleft groups. Linear data comparisons indicated statistically significant differences in the growth profile and mean vector analyses of several of the parameters describing the relationship (SNA and SNAns) and dimensions (Ans-Ptm and A-Ptm) of the maxillary complex. Incremental data comparisons on the same parameters (SNA, SNAns, Ans-Ptm and A-Ptm) indicated statistically significant differences in the mean vector longitudinal analysis and the univariate cross-sectional analysis. Most of these significant differences were concentrated in the older age comparisons (7 to 8, 8 to 9, and 9 to 10 years). Where significant differences existed, the normal sample increments were usually greater than the cleft sample increments.     

唇腭裂患者不同截骨方式下上颌骨外置式牵引成骨的比较

目的：利用颅外支架外固定式牵引器治疗唇腭裂继发上颌骨重度发育不足患者,分别采用上颌骨前段截骨和整块截骨方式,探讨不同截骨方式的牵引成骨效果。方法：唇腭裂术后继发上颌骨重度发育不足患者10例,反覆盖均超过10mm。采用传统整块截骨5例,前段分块截骨5例,均利用颅外支架固定式牵引器行术后牵引。通过头影测量分析,比较其矫治效果。利用SPSS13.0软件包对数据进行独立样本t检验。结果：所有患者均成骨良好,无明显并发症,面形及咬合显著改善。牵引成骨后,SNA角、NA与FH夹角、前牙覆盖、零子午线与Sn距离等显著增加。前段截骨组硬腭长度增加7.50mm,2组间有显著差异（P〈0.05）。而软腭长度、静止位腭咽腔深度无显著差异。结论：上颌骨前段截骨牵引在增加硬腭和牙弓长度、避免腭咽腔深度增加及腭咽闭合功能恶化方面具有更大优势,是一种较为理想的矫治唇腭裂术后继发上颌骨发育不足的方法。