摘要
背景：Beta角是一种新的反映颌骨矢状关系的测量指标,已开始被临床医生所应用。但目前很多医院还应用手工描绘测量,未采用专业测量软件。目的：对乌鲁木齐地区不同骨面型错[牙合]畸形的X射线Beta角头影测量结果进行分析,以期为临床应用提供数据,并验证Photoshop图像处理软件测量Beta角的可行性。设计、时间及地点：观察性实验,测量设计,于2006-07/2009-05在新疆医科大学第一附属医院口腔正畸科完成。对象：乌鲁木齐地区错[牙合]患者262例,其中男94例,女168例。骨面型分组：骨性Ⅰ类119例,骨性Ⅱ类74例,骨性Ⅲ类69例。方法：拍摄X射线头颅定位侧位片扫描存储,运用Photoshop8.0图像处理软件定点测量Beta角,对性别、骨面型的测量结果分别进行单因素方差分析及组间t检验。主要观察指标：男、女性Beta角,Ⅰ,Ⅱ,Ⅲ类骨面型Beta角。结果：Beta角在性别间差异无显著性意义（P〉0.05）。Ⅰ类骨面型Beta角为（34.15±3.88）°,Ⅱ类骨面型Beta角为（26.42±2.65）°,Ⅲ类骨面型Beta角为（42.41±1.88）°,Beta角在不同骨面型组间差异具有显著性意义（P〈0.01）。结论：Beta角可作为矢状关系的评价指标,乌鲁木齐地区汉族Ⅰ类骨面型人群Beta角参考范围为30°-38°。Photoshop8.0图像处理软件可作为X射线头影测量的另一种手段。
BACKGROUND： Beta angle, as a new index for the assessment of sagittal jaw relationship, has been widely used by clinical doctors. However, hand-made measurement but not academic software is still adopted in some hospital. OBJECTIVE： To study the beta angle of different skeletal patterns in Urumqi city for the clinical use of the method to assess the sagittal jaw relationship, and verify the possibility of Photoshop software to measurement of beta angle. DESIGN, TIME AND SETTING： An observational experiment and measurement design was performed at Department of Orthodontics, the First Affiliated Hospital of Xinjiang Medical University from July 2006 to May 2009. PARTICIPANTS： A total of 262 malocclusion cases including 94 males and 168 females were lived in Urumqi City. They were divided into three groups based on type of facies ossea, including type Ⅰ group （n=119）, type Ⅱ group （n=74）, and type Ⅲ group （n=69）. METHODS： Lateral position of skull was photographed using X-ray, and beta angle was measured using Photoshop 8.0 software. Sex and type of facies ossea were compared using one-way analysis of variance and t test. MAIN OUTCOME MEASURE： Beta angle of male and female; beta angle of the types Ⅰ, Ⅱ, and Ⅲ. RESULT： There was no significant difference in beta angle between males and females （P〉 0.05）. Beta angle of type I was （34.15±3.88）°, that of type Ⅱ was （26.42±2.65）°, and that of type Ⅲ was 42.41°±1.88°. There was significant difference in beta angle among three types of facies ossea （P〈 0.01）. CONCLUSION： Beta angle is an index for the assessment of sagittal jaw relationship. The reference range of the beta angle is 30°-38°. Photoshop 8.0 software is a novel tool to measure cephalometry.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2009年第52期10305-10308,共4页
Journal of Clinical Rehabilitative Tissue Engineering Research
