Tip-Edge Plus矫治技术矫治恒牙期安氏Ⅱ类1分类错(牙合)的软硬组织改变

目的 探讨Tip-Edge Plus矫治技术矫治恒牙早期安氏Ⅱ类1分类错(猞)面部软硬组织的改变,以期为临床提供参考.方法 选择以下颌后缩为主的恒牙早期安氏Ⅱ类1分类错(拾)16例,其中男性7例,女性9例,年龄12～15岁,平均13.5岁,均采用Tip-Edge Plus矫治技术进行非减数矫治.矫治前后拍摄头颅侧位X线片,对矫治前后软硬组织头影测量结果进行配对t检验.结果 16例患者平均疗程16个月.矫治后U1-NA角和U1-NA距分别减少(15.40±5.31)°和(4.16±1 82) mm(P ＜0.01) 、U1-L1角增加(- 14.60 ±6.62)°(rP＜0.01),U1-SN角减少(13.30±2.53)°(P＜0.05),ANB角及Y轴角均显著减少(P＜0.05),SNA角矫治前后差异无统计学意义(P＞0.05).矫治后患者软组织侧貌改善明显,鼻唇角增加( 16.60±5.29)°(P＜0.01),面型角减少(5.00±1.37)°(P＜0.05),上唇突度减少,下唇突度增加,上下唇和颏部软组织产生移位和改形,上下唇突度达到正常范围,由治疗前的Ⅱ类骨面型变为治疗后Ⅰ类直面型.结论 对下颌后缩的安氏Ⅱ类1分类错(拾)患者采用Tip-Edge Plus矫治技术,可快速、高效改善面部侧貌,使软硬组织侧貌面型趋于正常.     

垂直生长型安氏Ⅱ类1分类拔牙病例矫治前后硬组织的改变

目的研究垂直生长型安氏Ⅱ类1分类青少年与成人硬组织在矫治前后的变化,以期为正畸临床治疗方案的制定和治疗方法提供参考。方法选择38例垂直生长型安氏Ⅱ类1分类拔牙病例,在矫治前后拍摄X线头颅侧位片,对39个硬组织测量指标进行测量,并对青少年与成人矫治前后的变化量进行比较。结果研究对象矫治后ANB角、NA-PA、U1-FH、U1-NA、U1-Ptm、Spr-Ptm、Id-Go等青少年组与成人组的变化差异有统计学意义;Pog-Go、Cd-Go、S-Go、N-Me等都分别有所增加;与青少年组的OP-FH在正畸治疗后的减小相比较,成人组的OP-FH有所增加,成人组的平面发生了顺时针旋转。结论青少年在正畸治疗中表达更多的骨效应,即青少年通过正畸治疗能够更大程度地改善其Ⅱ类骨面型,更有利于其侧貌美观的改善;青少年上颌磨牙的伸长量基本是在有益的范围内,结合下颌升支等后面高的发育,能够使下颌平面、平面发生逆时针旋转,这对于垂直生长型Ⅱ类1分类病例的正畸治疗和面型改善以及治疗效果的稳定是有利的,同时也提示了垂直生长型Ⅱ类1分类错畸形的正畸治疗最佳时间为生长发育时期。     

Association between phase angle,anthropometric measurements,and lipid profile in HCV-infected patients

OBJECTIVE:

The objective of this study was to investigate the associations between phase angle, anthropometric measurements, and lipid profile in patients chronically infected with the hepatitis C virus.

METHODS:

A total of 160 consecutive patients chronically infected with the hepatitis C virus and who received treatment at the hepatitis C outpatient unit of our hospital from April 2010 to May 2011 were prospectively evaluated. Bioelectrical impedance analysis, anthropometric measurements, and serum lipid profile analysis were performed.

RESULTS:

Twenty-five patients were excluded. A total of 135 patients with a mean age of 49.8±11.4 years were studied. Among these patients, 60% were male. The phase angle and BMI means were 6.5±0.8° and 26.5±4.8 kg/m², respectively. Regarding anthropometric variables, mid-arm circumference, mid-arm muscle circumference, and arm muscle area had a positive correlation with phase angle. In contrast, when analyzing the lipid profile, only HDL was inversely correlated with phase angle. However, in multiple regression models adjusted for age and gender, only mid-arm circumference (p = 0.005), mid-arm muscle circumference (p = 0.003), and arm muscle circumference (p = 0.001) were associated with phase angle in hepatitis C virus-infected patients.

CONCLUSIONS:

In conclusion, phase angle is positively correlated with anthropometric measures in our study. However, there is no association between phase angle and lipid profile in these patients. Our results suggest that phase angle is related to lean body mass in patients chronically infected with hepatitis C virus.     

Associations between thoracic kyphosis,head posture,and craniofacial morphology in young adults

The aim of the present study was to investigate associations between thoracic hyper- and hypokyphosis, head posture, and craniofacial morphology in young adults. Using forward bending test and spinal pantographic measurements, 31 subjects, 16 with thoracic hyper- and 15 with hypokyphosis, were selected from a population-based cohort of 430 young adults. Lateral roentgen-cephalograms were taken in natural head posture and craniofacial and postural angular measurements were calculated. Any statistically significant differences between the groups - thoracic hyperkyphosis and thoracic hypokyphosis - were analysed using Student's t test. Subjects with thoracic hyperkyphosis had a larger atlantocervical angle (At/CVT, P < 0.01) than subjects with thoracic hypokyphosis. However, head position (NSL/VER)was similar in both groups, probably owing to the visual perception control of craniovertical relation. There was no statistically significant difference in craniofacial morphology between the groups.     

骨性安氏Ⅲ类错(牙合)患者亲子间颅颌面形态的遗传度研究

目的通过对骨性安氏Ⅲ类错（牙合）亲子之间的不同颅颌面结构的遗传度研究,探讨遗传因素在骨性安氏Ⅲ类错（牙合）发病中的作用。方法对65例骨性安氏Ⅲ类错（牙合）患者及其父母拍摄头颅侧位片,选取29个测量标志点,26个测量项目,分别用均父母-子代回归系数法和单亲一子代回归系数法估算不同测量项目的遗传度。结果均父母-子代回归系数法显示,亲子之间颅骨、上下颌骨有很高的遗传度,达到70％～90％,角度的遗传度高于线距的遗传度,代表牙齿和软组织的大部分测量项目的遗传度都在30％-40％左右。单亲．子代回归系数法显示,硬组织和软组织中母子的遗传度大于父子的遗传度,性别在亲子间的遗传有一定的影响。结论亲代的颅颌面结构特征在一定程度上可以预测子代颌骨的生长发育。     

大脑前动脉A2段和前交通动脉夹角与前交通动脉动脉瘤发生率相关性的影像研究

目的 通过测量3D-DSA图像上大脑前动脉A2段与前交通动脉的夹角大小,探讨该角度与前交通动脉动脉瘤发生率的相关性.方法 对31例颈内动脉系统动脉瘤患者的3D-DSA影像资料进行回顾性分析,前交通动脉动脉瘤患者为观察组,其余患者为对照组,使用配套软件分别测量观察组和对照组的大脑前动脉A2段与前交通动脉(ACoA)的空间角度,利用SPSS11.5统计软件分析两组间的差异性.结果 31例患者中前交通动脉动脉瘤者15例,对照组16例.观察组A2-ACoA夹角平均为140.5°±19.76°,对照组平均夹角为114.7°±16.73°,统计分析两组间差异有统计学意义(t=3.928P ＜0.001).结论 大脑前动脉A2段与前交通动脉的空间夹角与前交通动脉动脉瘤的发生有相关性.夹角大者易于发生前交通动脉动脉瘤.     

仙灵骨葆胶囊联合唑来膦酸治疗骨质疏松性椎体压缩性骨折的临床研究

目的探究仙灵骨葆胶囊联合唑来膦酸治疗骨质疏松性椎体压缩性骨折的疗效。方法选取2014年1月—2016年1月天津中医药大学第一附属医院收治的骨质疏松性椎体压缩性骨折行经皮椎体成形术的112例患者,随机分为对照组和治疗组,每组各56例。两组均行经皮椎体成形术,对照组术后第3天静脉滴注唑来膦酸注射液,5 mg/次,1次/年。治疗组患者在对照组的治疗基础上口服仙灵骨葆胶囊,3粒/次,2次/d,3个月为一个疗程,共服用2个疗程。观察两组的临床疗效,同时比较治疗前,治疗3、6个月时腰椎、股骨前端的骨密度、VAS评分和PINP水平的变化情况,比较两组治疗前后椎体后凸Cobb角及其恢复率。结果治疗后,对照组和治疗组的总有效率分别为82.14%、96.43%,两组比较差异有统计学意义(P0.05)。治疗后,两组患者腰椎、股骨前端骨密度均明显提高,VAS评分和PINP水平均明显降低,同组治疗前后差异有统计学意义(P0.05);治疗后,治疗组患者腰椎、股骨前端骨密度高于对照组,治疗组VAS评分和PINP水平低于对照组,两组比较差异具有统计学意义(P0.05)。治疗后,两组椎体后凸Cobb角均较治疗前显著降低,同组治疗前后差异有统计学意义(P0.05);治疗后治疗组椎体后凸Cobb角低于对照组,两组比较差异具有统计学意义(P0.05)。治疗后,治疗组椎体后凸Cobb角恢复率明显高于对照组,两组比较差异具有统计学意义(P0.05)。结论仙灵骨葆胶囊联合唑来膦酸治疗骨质疏松性压缩性骨折具有较好的临床疗效,可增加患者骨密度,有效减轻患者疼痛感,促进椎体压缩性骨折的愈合,具有一定的临床推广应用价值。