口腔疾病防治 ›› 2021, Vol. 29 ›› Issue (9): 617-623.DOI: 10.12016/j.issn.2096-1456.2021.09.007
收稿日期:
2021-02-08
出版日期:
2021-09-20
发布日期:
2021-06-18
通讯作者:
王小琴
作者简介:
贾璟博,医师,学士,Email: 基金资助:
JIA Jingbo1(),REN Juan1,WANG Xiaoqin1,2(
)
Received:
2021-02-08
Online:
2021-09-20
Published:
2021-06-18
Contact:
Xiaoqin WANG
Supported by:
摘要:
目的 研究骨性Ⅰ类错牙合不同垂直骨面型与下颌牙弓宽度、基骨弓宽度及牙齿颊舌向倾斜度的相关性。方法 收集62例骨性Ⅰ类错牙合患者的CBCT资料,根据GoGn-SN角分为3组,高角组19例、均角组22例、低角组21例,用Dolphin imaging进行三维重建,分别测量下颌尖牙、第一前磨牙、第一磨牙间的牙弓和基骨弓宽度及牙齿颊舌向倾斜度并进行统计学分析。 结果 3组下颌各段牙弓宽度的差异无统计学意义(P>0.05);低角组患者的下颌尖牙间基骨弓宽度和第一前磨牙间基骨弓宽度大于均角组和高角组(P< 0.05);高角组患者的尖牙颊舌向倾斜度和第一前磨牙颊舌向倾斜度大于均角组和低角组(P< 0.05)。磨牙间基骨弓宽度与颊舌向倾斜度在3组间的差异无统计学意义(P>0.05)。Pearson检验表明:下颌尖牙间基骨弓宽度、第一前磨牙间基骨弓宽度与GoGn-SN角呈负相关;排除下颌牙弓宽度和基骨弓宽度的影响,下颌尖牙和第一前磨牙的颊舌向倾斜度与GoGn-SN角间仍然存在显著正相关关系(P<0.05)。结论 骨性Ⅰ类错牙合不同垂直骨面型间的基骨弓宽度差异主要体现在尖牙段和前磨牙段,牙体颊舌向倾斜度的差异主要是对下颌平面角的不同进行代偿。临床中应针对差异采用个体化方案以达到矫治的长期疗效。
中图分类号:
贾璟博,任娟,王小琴. 骨性Ⅰ类错牙合不同垂直骨面型患者下颌横向关系研究[J]. 口腔疾病防治, 2021, 29(9): 617-623.
JIA Jingbo,REN Juan,WANG Xiaoqin. Study on the transverse relationship of the mandible between different skeletal vertical patterns in patients with skeletal ClassⅠ malocclusion[J]. Journal of Prevention and Treatment for Stomatological Diseases, 2021, 29(9): 617-623.
图1 CBCT图像校准
Figure 1 Orientation of CBCT images a-c: anteroposterior and lateral calibration is performed through the FH plane; d: transverse calibration is performed according to the bilateral root of the zygoma points; FH plane: Frankfort horizontal plane
图2 牙弓宽度的测量
Figure 2 Measurement of the dental arch width a: locate the axial center of the clinical crown (FA); b: taking DW3 (indicated as the red arrow line segment) as an example, the dental arch width is distance between the FA points of the homonym teeth, DW3: distance between FA points of the canines on both sides of the mandible
图3 基骨弓宽度的测量
Figure 3 Measurement of the basal arch width a: locate the apical point on the transverse plane; b: locate the apical point on the sagittal plane; c: taking BW6 (indicated as the red arrow line ) as an example, the basal arch width is the distance between the points with which the line through the apical points of the homonym teeth on the coronal plane intersects the outer surface of the jaw; BW6: distance between apical points of the first molars on both sides of the mandible
图4 牙齿颊舌向倾斜度的测量
Figure 4 Measurement of the buccolingual inclination a: locate the center of the anatomical crown on the transverse plane; b: locate the center of the anatomical crown on the sagittal plane; c: taking BL6 (indicated as the red arrow line segment) as an example, the dental buccolingual inclination is the angle between the sagittal plane and the line through the center of anatomical crown and the center of dental cervix on the coronal plane; BL6: the buccolingual inclination of first molars
Groups | n | DW3 | DW4 | DW6 | BW3 | BW4 | BW6 |
---|---|---|---|---|---|---|---|
Mean-angle group | 22 | 29.84 ± 1.27 | 39.25 ± 1.37 | 54.88 ± 1.69 | 35.67 ± 2.82 | 43.29 ± 1.47 | 67.11 ± 1.78 |
Low-angle group | 21 | 28.95 ± 1.25 | 39.35 ± 1.68 | 55.02 ± 1.87 | 37.39 ± 2.60 1) | 45.02 ± 2.37 1) | 67.94 ± 2.36 |
High-angle group | 19 | 29.29 ± 1.49 | 39.42 ± 1.33 | 55.48 ± 1.43 | 35.28 ± 2.60 2) | 42.69 ± 3.13 2) | 66.89 ± 2.05 |
F | 2.442 | 0.068 | 0.708 | 3.622 | 5.273 | 1.486 | |
P | 0.096 | 0.934 | 0.497 | 0.033 | 0.008 | 0.235 |
表1 骨性Ⅰ类错牙合患者不同垂直骨面型下颌牙弓宽度、基骨弓宽度比较
Table 1 Comparison of the mandibular dental arch widths or the basal arch widths of different skeletal vertical patterns in patients with skeletal ClassⅠ malocclusion x ± s,mm
Groups | n | DW3 | DW4 | DW6 | BW3 | BW4 | BW6 |
---|---|---|---|---|---|---|---|
Mean-angle group | 22 | 29.84 ± 1.27 | 39.25 ± 1.37 | 54.88 ± 1.69 | 35.67 ± 2.82 | 43.29 ± 1.47 | 67.11 ± 1.78 |
Low-angle group | 21 | 28.95 ± 1.25 | 39.35 ± 1.68 | 55.02 ± 1.87 | 37.39 ± 2.60 1) | 45.02 ± 2.37 1) | 67.94 ± 2.36 |
High-angle group | 19 | 29.29 ± 1.49 | 39.42 ± 1.33 | 55.48 ± 1.43 | 35.28 ± 2.60 2) | 42.69 ± 3.13 2) | 66.89 ± 2.05 |
F | 2.442 | 0.068 | 0.708 | 3.622 | 5.273 | 1.486 | |
P | 0.096 | 0.934 | 0.497 | 0.033 | 0.008 | 0.235 |
Groups | n | BL3 | BL4 | BL6 |
---|---|---|---|---|
Mean-angle group | 22 | 4.63 ± 1.09 | 5.85 ± 0.97 | 14.23 ± 2.80 |
Low-angle group | 21 | 4.22 ± 1.02 | 5.57 ± 1.19 | 14.13 ± 3.07 |
High-angle group | 19 | 7.88 ± 2.23 1)2) | 11.35 ± 1.68 1)2) | 15.09 ± 3.79 |
F | 34.34 | 124.90 | 0.53 | |
P | <0.01 | <0.01 | 0.59 |
表2 骨性Ⅰ类错牙合患者不同垂直骨面型下颌牙齿倾斜度比较
Table 2 Comparison of the mandibular buccolingual inclinations of different skeletal vertical patterns in patients with skeletal ClassⅠ malocclusion x ± s,°
Groups | n | BL3 | BL4 | BL6 |
---|---|---|---|---|
Mean-angle group | 22 | 4.63 ± 1.09 | 5.85 ± 0.97 | 14.23 ± 2.80 |
Low-angle group | 21 | 4.22 ± 1.02 | 5.57 ± 1.19 | 14.13 ± 3.07 |
High-angle group | 19 | 7.88 ± 2.23 1)2) | 11.35 ± 1.68 1)2) | 15.09 ± 3.79 |
F | 34.34 | 124.90 | 0.53 | |
P | <0.01 | <0.01 | 0.59 |
Measuring project | r | P |
---|---|---|
DW3(mm) | 0.013 | 0.922 |
DW4(mm) | 0.017 | 0.897 |
DW6(mm) | 0.161 | 0.212 |
BW3(mm) | -0.291 | 0.022 |
BW4(mm) | -0.427 | 0.001 |
BW6(mm) | -0.187 | 0.146 |
BL3(°) | 0.670 | <0.001 |
BL4(°) | 0.851 | <0.001 |
BL6(°) | 0.086 | 0.506 |
表3 骨性Ⅰ类错牙合患者下颌横向距离或牙齿颊舌向倾斜度与GoGn-SN角的相关性分析
Table 3 Pearson correlation analysis of the GoGn-SN angle with mandibular transverse width or dental buccolingual inclination in patients with skeletal ClassⅠ malocclusion
Measuring project | r | P |
---|---|---|
DW3(mm) | 0.013 | 0.922 |
DW4(mm) | 0.017 | 0.897 |
DW6(mm) | 0.161 | 0.212 |
BW3(mm) | -0.291 | 0.022 |
BW4(mm) | -0.427 | 0.001 |
BW6(mm) | -0.187 | 0.146 |
BL3(°) | 0.670 | <0.001 |
BL4(°) | 0.851 | <0.001 |
BL6(°) | 0.086 | 0.506 |
Measuring project | Partial correlation | |
---|---|---|
R | P | |
BL3(°) | 0.635 | < 0.001 |
BL4(°) | 0.842 | < 0.001 |
BL6(°) | 0.104 | 0.429 |
表4 骨性Ⅰ类错牙合患者牙齿颊舌向倾斜度与GoGn-SN角的偏相关性分析
Table 4 Partial correlation analysis between buccal lingual inclination of teeth and GOGN-SN angle in patients with skeletal ClassⅠ malocclusion
Measuring project | Partial correlation | |
---|---|---|
R | P | |
BL3(°) | 0.635 | < 0.001 |
BL4(°) | 0.842 | < 0.001 |
BL6(°) | 0.104 | 0.429 |
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