成人安氏Ⅱ类2分类错合畸形髁状突—关节窝的位置和形态特征的CBCT研究
发布时间：2018-08-16 18:42
【摘要】：目的： 通过对山东地区成年安氏Ⅱ类2分类错合畸形和正常合志愿者安氏工类颞下颌关节的比较研究,探讨无症状颞下颌关节成人安氏Ⅱ类2分类错合颞下颌关节髁状突-关节窝位置关系和形态特征。 方法： 选择25例成人骨性Ⅱ类安氏Ⅱ类2分类错合患者(男性11例,女性14例,年龄18～26岁,平均年龄22岁,组间无性别差异。)和25例安氏Ⅰ类错合患者,(男性13例,女性12例,年龄18-26岁,平均年龄22岁,组间无性别差异)。所有研究对象开、闭口功能正常,无颞下颌关节症状,并经薛氏位X线检查无明显颞下颌关节结构改变。采用锥形束CT (Sirona Model-No:6007269D3437)进行头颅扫描,应用Mimics16.01软件进行重建,然后在矢状面影像上对双侧颞下颌关节上间隙、前间隙、后间隙、髁突高度与宽度、关节窝深度与宽度、关节结节后斜面斜度等指标进行测量分析,在冠状面影像上进行髁状突的双侧对称性评价。髁状突位置判断依据Pullinger方法。测量结果采用样本均数t检验,卡方检验。 结果： 1.成人安氏Ⅱ类2分类错合实验组关节右侧前间隙,上间隙,后间隙分别为1.71±0.75mm,2.37±0.69mm,2.47±0.54mm,左侧分别为1.76±0.54mm,2.42±0.25mm,2.59±0.63mm;左右侧各关节间隙差异无统计学意义。 2.成人安氏工类错合对照组关节右侧上间隙,前间隙,后间隙分别为2.19±0.62mm,1.69±0.60m,2.30±0.54mm,左侧分别为2.24±0.33mm,1.65±0.34mm,2.28±0.63mm,左右侧各关节间隙差异无统计学意义。 3.实验组安氏Ⅱ类2分类错合组髁状突有88%为中性位,12%为后位；对照组84%为中性位,有8%处于前位,8%处于后位。经统计学卡方检验两个组之间其错合分布差异无统计学意义(P0.05)。 4.安氏Ⅱ类2分类错合髁突头部高度左、右侧分别为3.45±0.57mm、3.37.±0.80mmm小于安氏Ⅰ类合(左右侧分别为3.77±2.21mm、3.76±0.22mm),差异有统计学意义(P0.05)。 5.安氏Ⅱ类2分类错合髁突头部宽度左、右侧分别为9.75±1.98、9.18±1.68大于安氏Ⅰ类合(左右侧分别为8.99±0.72、8.96±0.69),差异有统计学意义(P0.05) 6.安氏Ⅱ类2分类错合左、右侧关节结节后斜面倾斜角度分别为21.83±1.82°、20.71±1.23。,成人安氏Ⅰ类错合分别为23.65±1.96°、22.89±2.96°。安氏Ⅱ类2分类组错合关节结节后斜面倾斜角度小于正常合,二者关节结节后斜面倾斜角度差异无统计学意义。 7.安氏Ⅱ类2分类合左、右侧髁状突高度分别为15.90±1.30mm、15.89±1.32mm,小于安氏Ⅰ类正常合(分别为16.83±1.48mm、16.81±1.95mm),差异有统计学意义(P0.05)。 8.安氏Ⅱ类2分类错合左、右侧关节窝高度分别为7.69±0.68mm、7.79±0.58mm,小于安氏Ⅰ类正常合(分别为8.69±0.22、8.20±0.82),差异有统计学意义(PO.05)。 9.安氏Ⅱ类2分类错合左、右侧关节窝宽度分别为19.21±0.57mm、19.27±0.20mm,大于安氏Ⅰ类正常合(分别为18.80±0.89、18.74±0.94),差异有统计学意义(P0.05)。 结论： 1.成年人安氏Ⅰ类错合类型其左右两侧关节间隙差别无统计学意义。 2.成年人骨性Ⅱ类错合其关节间隙左右两侧差别无统计学意义。 3.成年人安氏Ⅱ类2分类错合类型与安氏Ⅰ类错合相比,其关节髁状突位置无差别。
[Abstract]:Objective:
By comparing class II malocclusion with class II malocclusion of temporomandibular joint of normal volunteers in Shandong province, the relationship between class II malocclusion of temporomandibular joint and condylar fossa of temporomandibular joint in asymptomatic adults was studied.
Method:
Twenty-five adults (11 males, 14 females, 18-26 years old, with an average age of 22 years and no gender difference between groups) with skeletal Class II Angle Class 2 malocclusion were enrolled in this study. No symptoms of temporomandibular joint were found, and no obvious changes of temporomandibular joint structure were observed by X-ray examination in Schroeder's position.The skull was scanned by cone-beam CT (Sirona Model-No:6007269D3437) and reconstructed by Mimics 16.01 software. The depth and width of the fossa and the slope of the posterior oblique plane of the articular nodule were measured and analyzed, and the symmetry of the condyle was evaluated on the coronal images.
Result:
1. The right anterior, superior and posterior articular spaces were 1.71 (+ 0.75 mm), 2.37 (+ 0.69 mm), 2.47 (+ 0.54 mm) and 1.76 (+ 0.54 mm), 2.42 (+ 0.25 mm) and 2.59 (+ 0.63 mm) respectively, in the adult Angle Class II Class 2 malocclusion group.
2. The right superior joint space, anterior joint space, posterior joint space were 2.19 (+ 0.62 mm), 1.69 (+ 0.60 m), 2.30 (+ 0.54 mm), left joint space were 2.24 (+ 0.33 mm), 1.65 (+ 0.34 mm) and 2.28 (+ 0.63 mm), respectively.
3. 88% of the condyles were in the neutral position and 12% were in the posterior position in class II class 2 malocclusion group; 84% in the control group were in the neutral position, 8% in the anterior position and 8% in the posterior position.
4. The height of the condylar head in Angle II class 2 malocclusion was 3.45 (+ 0.57 mm) on the left and 3.37 (+ 0.80 mm) on the right, respectively, less than Angle I malocclusion (3.77 (+ 2.21 mm) on the left and 3.76 (+ 0.22 mm) on the right, respectively. The difference was statistically significant (P 0.05).
5. The width of the condylar head in Angle II class 2 malocclusion was 9.75 (+ 1.98) on the left and 9.18 (+ 1.68) on the right, respectively, larger than Angle I malocclusion (8.99 (+ 0.72) and 8.96 (+ 0.69) on the left and right, respectively. The difference was statistically significant (P 0.05).
6. Angle class II class 2 malocclusion left, right articular nodule posterior oblique angle were 21.83 [1.82], 20.71 [1.23], adult Angle class I malocclusion were 23.65 [1.96], 22.89 [2.96], Angle class II class 2 malocclusion posterior oblique angle of articular nodule was less than normal, there was no statistical difference between the two joint nodule posterior oblique angle. Learning meaning.
7. The height of the right condyle was 15.90 (+ 1.30 mm) and 15.89 (+ 1.32 mm) respectively, which were less than that of the normal group (16.83 (+ 1.48 mm) and 16.81 (+ 1.95 mm), respectively. The difference was statistically significant (P 0.05).
8. Angle II class 2 mismatched left, right articular fossa height was 7.69 + 0.68 mm, 7.79 + 0.58 mm, less than Angle I normal group (8.69 + 0.22, 8.20 + 0.82 respectively), the difference was statistically significant (PO.05).
9. Angle II class 2 was mismatched in left, and the width of right articular fossa was 19.21 (+ 0.57 mm) and 19.27 (+ 0.20 mm) respectively, which was larger than Angle I normal group (18.80 (+ 0.89) and 18.74 (+ 0.94), respectively. The difference was statistically significant (P 0.05).
Conclusion:
1. there was no significant difference in left and right joint space between adults and type 1 malocclusion types.
2. there was no significant difference in adult skeletal Class II malocclusion between the left and right sides of the joint space.
3. There was no difference in the position of the condyle between class II and class I malocclusions in adults.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.5
[Abstract]:Objective:
By comparing class II malocclusion with class II malocclusion of temporomandibular joint of normal volunteers in Shandong province, the relationship between class II malocclusion of temporomandibular joint and condylar fossa of temporomandibular joint in asymptomatic adults was studied.
Method:
Twenty-five adults (11 males, 14 females, 18-26 years old, with an average age of 22 years and no gender difference between groups) with skeletal Class II Angle Class 2 malocclusion were enrolled in this study. No symptoms of temporomandibular joint were found, and no obvious changes of temporomandibular joint structure were observed by X-ray examination in Schroeder's position.The skull was scanned by cone-beam CT (Sirona Model-No:6007269D3437) and reconstructed by Mimics 16.01 software. The depth and width of the fossa and the slope of the posterior oblique plane of the articular nodule were measured and analyzed, and the symmetry of the condyle was evaluated on the coronal images.
Result:
1. The right anterior, superior and posterior articular spaces were 1.71 (+ 0.75 mm), 2.37 (+ 0.69 mm), 2.47 (+ 0.54 mm) and 1.76 (+ 0.54 mm), 2.42 (+ 0.25 mm) and 2.59 (+ 0.63 mm) respectively, in the adult Angle Class II Class 2 malocclusion group.
2. The right superior joint space, anterior joint space, posterior joint space were 2.19 (+ 0.62 mm), 1.69 (+ 0.60 m), 2.30 (+ 0.54 mm), left joint space were 2.24 (+ 0.33 mm), 1.65 (+ 0.34 mm) and 2.28 (+ 0.63 mm), respectively.
3. 88% of the condyles were in the neutral position and 12% were in the posterior position in class II class 2 malocclusion group; 84% in the control group were in the neutral position, 8% in the anterior position and 8% in the posterior position.
4. The height of the condylar head in Angle II class 2 malocclusion was 3.45 (+ 0.57 mm) on the left and 3.37 (+ 0.80 mm) on the right, respectively, less than Angle I malocclusion (3.77 (+ 2.21 mm) on the left and 3.76 (+ 0.22 mm) on the right, respectively. The difference was statistically significant (P 0.05).
5. The width of the condylar head in Angle II class 2 malocclusion was 9.75 (+ 1.98) on the left and 9.18 (+ 1.68) on the right, respectively, larger than Angle I malocclusion (8.99 (+ 0.72) and 8.96 (+ 0.69) on the left and right, respectively. The difference was statistically significant (P 0.05).
6. Angle class II class 2 malocclusion left, right articular nodule posterior oblique angle were 21.83 [1.82], 20.71 [1.23], adult Angle class I malocclusion were 23.65 [1.96], 22.89 [2.96], Angle class II class 2 malocclusion posterior oblique angle of articular nodule was less than normal, there was no statistical difference between the two joint nodule posterior oblique angle. Learning meaning.
7. The height of the right condyle was 15.90 (+ 1.30 mm) and 15.89 (+ 1.32 mm) respectively, which were less than that of the normal group (16.83 (+ 1.48 mm) and 16.81 (+ 1.95 mm), respectively. The difference was statistically significant (P 0.05).
8. Angle II class 2 mismatched left, right articular fossa height was 7.69 + 0.68 mm, 7.79 + 0.58 mm, less than Angle I normal group (8.69 + 0.22, 8.20 + 0.82 respectively), the difference was statistically significant (PO.05).
9. Angle II class 2 was mismatched in left, and the width of right articular fossa was 19.21 (+ 0.57 mm) and 19.27 (+ 0.20 mm) respectively, which was larger than Angle I normal group (18.80 (+ 0.89) and 18.74 (+ 0.94), respectively. The difference was statistically significant (P 0.05).
Conclusion:
1. there was no significant difference in left and right joint space between adults and type 1 malocclusion types.
2. there was no significant difference in adult skeletal Class II malocclusion between the left and right sides of the joint space.
3. There was no difference in the position of the condyle between class II and class I malocclusions in adults.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.5
【参考文献】
相关期刊论文 前1条
1 王美青,姚秀芳,颜朝云,张e，
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