检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:王海任[1] 王春玲[1] 刘铃[1] 高晓丽[1]
机构地区:[1]山东大学口腔医学院正畸科.山东省口腔生物医学重点实验室,济南250012
出 处:《口腔医学》2011年第10期582-585,共4页Stomatology
基 金:山东省科技攻关项目(2010GSF10269)
摘 要:目的本回顾性研究通过头颅侧位片测量来探讨正畸治疗和生长发育对恒牙早期安氏Ⅱ类1分类错畸形患者鼻部形态的影响。方法收集60例处于生长发育高峰期(11~14岁)病例,分为非拔牙组30例和拔牙组30例,矫治前为T1期,矫治后为T2期;30例已过生长发育高峰期的未治疗病例为阴性对照组1,1~14岁时为T1期,当前为T2期。拍摄两期头颅侧位片,定点测量与鼻部形态相关的15项指标,数据输入SPSS16.0分析软件包,组内采用自身配对t检验,组间采用最小显著差数法进行多重比较分析。结果矫治组矫治前后线距测量指标变化明显(P<0.05),阴性对照组鼻背宽度、鼻底长度、鼻厚度变化明显(P<0.05),治疗组与未治疗组组间比较鼻背长度、鼻底高度、鼻前角变化明显(P<0.05)。结论正畸治疗能促进鼻部垂直方向上的发育,对鼻部形态影响不大。Objective To investigate nasal shape changes through orthodontic treatment and growth of early permanent dentition patients with Class ⅡDivision 1 malocclusion by cephalometric measurements.Methods 60 patients in fastigium of growth and development were divided in two groups: nonextraction group of 30 subjects,and extraction group of 30 subjects,from 11 to 14 years old.Pretreatment situation was T1 stage,while aftertreatment situation was T2 stage.Take thirty patients after fastigium as negativel control group(age of 11~14 years old was at T1,and current time was at T2).Fifteen parameters related to nasal sharp were measured on lateral cephalometric radiographs at two stages.The data were analysed with SPSS16.0 software package,using self-paired t test in group and LSD(Least-Significant Difference) among groups.Results Results of linear measurements were found to be significantly different between two stages in nonextraction group and extraction group(P0.05).The width of nasal dorsum,the length of nasal basal,the thickness of nasal were found to be significantly different between two stages in negativel control group(P0.05).The length of nasal dorsum,the height of nasal basal,the nasotip angle were found to be significantly different between treatment group and nontreatment group(P0.05).Conclusions Orthodontic treatment can promote growth of nasal in vertical direction,while it has no significantl influence on nasal sharp.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15