摘要
目的采用CBCT描述骨性Ⅰ类与Ⅱ类颅面形态患者中耳与颞下颌关节的相对位置关系,探讨中耳与颅面形态的关系。方法方便选取2012年3月-2017年3月在首都医科大学北京口腔医院就诊的颅面形态骨性Ⅰ类和骨性Ⅱ类患者各30例60耳作为研究对象,分别拍摄CBCT,测量患者锤砧关节与颞下颌关节在坐标系中的水平向和垂直向距离,以及两者间的直接距离,同时测量鼓室前壁的厚度和骨密度。采用SPSS软件对结果进行统计分析。结果骨性Ⅰ类锤砧关节相对关节结节的垂直高度为(8.86±2.55)mm,髁状突的垂直高度为(2.42±1.08)mm,骨性Ⅱ类锤砧关节相对关节结节的垂直高度为(7.72±2.18)mm,髁状突的垂直高度为(1.65±1.40)mm,两者差异有统计学意义(t=2.634,3.388,P<0.05);鼓室前壁中上段厚度骨性Ⅱ类大于骨性Ⅰ类差异有显著性(P<0.01);在相关性研究上,锤砧关节垂直高度与髁状突垂直高度相关系数是0.636,锤砧关节水平长度与髁状突水平长度相关系数是0.777,两者均呈高度线性相关关系。结论 CBCT是观察颞下颌关节与中耳相对位置的有效手段,中耳与髁状突的位置密切相关,中耳结构在骨性I类与骨性II类颅面形态人群具有不同表现,不同颅面形态中耳结构和位置与颞下颌关节的功能作用方式相关。
Objective To describe the relative position of middle ear and temporomandibular joint in patients with skeletal class Ⅰ and Ⅱ craniofacial morphology by CBCT, and to explore the relationship between middle ear and craniofacial morphology. Methods From March 2012 to March 2017, 30 patients with cranial morphologic skeletal class Ⅰ and skeletal class Ⅱ who were convenient selected and treated at the Beijing Stomatological Hospital of Capital Medical University were selected as subjects. CBCT was taken and the patient’s hammer was measured. The horizontal and vertical distances of the anvil joint and the temporomandibular joint in the coordinate system, and the direct distance between the two, while measuring the thickness and bone density of the anterior wall of the tympanic cavity. The results were statistically analyzed using SPSS software. Results The vertical height of the skeletal class Ⅰ anvil joint to the joint nodule was(8.86±2.55)mm, the vertical height of the condyle was(2.42±1.08) mm, and the vertical height of the skeletal class Ⅱ anvil joint relative to the joint nodule was(7.72±2.18)mm, the vertical height of the condyle is(1.65±1.40)mm, the difference was significant(t=2.634, P=0.010;t=3.388, P=0.001);anterior wall thickness of anterior wall of tympanic cavity difference was greater than that of the skeletal class I(P<0.01). In the correlation study, the correlation coefficient between the vertical height of the anvil joint and the vertical height of the condyle was 0.636, and the correlation coefficient between the horizontal length of the anvil joint and the horizontal length of the condyle was 0.777, both of which are highly linearly related. Conclusion CBCT is an effective method to observe the relative position of the temporomandibular joint and the middle ear. The middle ear is closely related to the position of the condyle. The middle ear structure has different performances in the skeletal class Ⅰ and skeletal class Ⅱ craniofacial population. The structure and location o
作者
单清爱
车晓霞
SHAN Qing-ai;CHE Xiao-xia(731 Hospital of China Aerospace Science and Industry Corporation, Beijing, 100074 China;Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050 China)
出处
《中外医疗》
2019年第15期84-87,共4页
China & Foreign Medical Treatment
关键词
骨性Ⅰ类
骨性Ⅱ类
锤砧关节
髁状突
Skeletal class I
Skeletal class II
Anvil joint
Condyle
