骨性Ⅱ类错牙合下颌基骨与牙弓形态的研究

doi:10.13591/j.cnki.kqyx.2025.06.007

Abstract

Abstract:

Objective To study the relationship between the mandibular bone arch and the dental arch in patients with skeletal Class Ⅱmalocclusion and compare it with the Class Imalocclusion by establishing a 3D digital model. Methods A total of 25 cases with skeletal Class Ⅱ malocclusion and 25 cases with skeletal Class Ⅰ normal occlusion were selected. The mandibular model was scanned and a three-dimensional digital model was set up. After the determination of the WALA ridge and the FA point, the reference plane and coordinate system was established. Four degree polynomial curve fitting was performed with WALA ridge and FA point coordinates to represent the corresponding basal and dental arch curves. The width difference between the basal arch curve and the dental arch curve was measured and calculated at 3 mm, 10 mm, and 18 mm away from the horizontal axis of the coordinate. The differences of basal bone and dental arch width between skeletal Class Ⅱ and skeletal Class Ⅰ malocclusion was compared. Results The width differences between the arch and the dental arch in the anterior, middle and posterior mandibular segments of skeletal Class Ⅱ patients were -1.58 mm, 1.80 mm and 3.80 mm, respectively. The width differences between the arch and the dental arch in the anterior, middle and posterior mandibular segments of skeletal Class Ⅰ patients were 2.08 mm, 2.92 mm and 4.24 mm, respectively. There was a significant difference between skeletal Class Ⅱ and skeletal Class Ⅰ in the anterior and middle segments(P<0.05), but no significant difference in the posterior segment(P>0.05). Conclusion In skeletal Class Ⅰ patients, the width of the basal bone is larger than that of the dental arch, and the dental arch was located medial to the basal bone. In skeletal Class Ⅱ patients, the width of the anterior arch is larger than the width of the basal bone, that is, the dental arch is located outside the basal bone. The width difference of the basal arch in skeletal Class Ⅱ is smaller than that in skeletal Class Ⅰ.

Key words: skeletal ClassⅡ malocclusions, dental and basal bone arch form, WALA ridge, curve fitting

CLC Number:

R783.5

BAI Yu, GAO Meng, LIU Dongmei, WANG Tao, FENG Xue. Study on the morphology of the mandibular basal bone and dental arch of skeletal Class Ⅱ malocclusion[J]. Stomatology, 2025, 45(6): 436-439.

Figures/Tables 6

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References 18

[1]	傅民魁, 张丁, 王邦康, 等. 中国25 392名儿童与青少年错牙合畸形患病率的调查[J]. 中华口腔医学杂志, 2002, 37(5): 371-373.
[2]	Ronay V, Miner RM, Will LA, et al. Mandibular arch form: The relationship between dental and basal anatomy[J]. Am J OrthodDentofacial Orthop, 2008, 134(3): 430-438.
[3]	Kim KY, Bayome M, Kim K, et al. Three-dimensional evaluation of the relationship between dental and basal arch forms in normal occlusion[J]. Korean J Orthod, 2011, 41(4): 288.
[4]	奚祺, 吴国锋. 数字化口内扫描技术的发展与应用[J]. 实用口腔医学杂志, 2021, 37(1): 136-140.
[5]	Hayama K, Arai K, Ishikawa H. Correlation between upper and lower dental arch froms by fitting of fourth-order polynomials[J]. Orthod Waves, 2000, 59:303-311.
[6]	高盟. 骨性Ⅱ类错牙合拔牙治疗前后基骨与牙弓形态的研究[D]. 西安: 中国人民解放军空军军医大学, 2018.
[7]	Wen YF, Wong HM, Pei T, et al. Adolescent dental arch development among southern Chinese in Hong Kong: A geometric morphometric approach[J]. Sci Rep, 2019, 9(1): 18526. doi: 10.1038/s41598-019-55073-2 pmid: 31811230
[8]	高盟, 刘冬梅, 程锦, 等. 骨性Ⅱ类错牙合拔牙矫治前后下颌牙弓与基骨形态的变化[J]. 中华医学美学美容杂志, 2018, 24(3): 188-191.
[9]	Brash JC. The etiology of irregularity and malocclusion of the teeth[M]. London: Dental Board of the United Kingdom, 1956.
[10]	Andrews L. The six elements of orofacial harmony[J]. Andrews J, 2000(1):13-22.
[11]	Ramón R, Adanero A, Miegimolle M. A new approach to diagnosis to posterior cross bite: Intraoral photography and walaridge[J]. Int J Environ Res Public Health, 2022, 19(15): 9443.
[12]	Uysal T, Badel M, Serdar U, et al. Dental and alveolar arch widths in normal occlusion, Class Ⅱ division 1 and Class Ⅱ division 2[J]. Angle Orthod, 2005, 75(6): 941-947.
[13]	Gupta D, Miner RM, Arai K, et al. Comparison of the mandibular dental and basal arch forms in adults and children with Class Ⅰ and Class Ⅱmalocclusions[J]. Am J Orthod Dentofacial Orthop, 2010, 138(1): 10. e1-10. e8;discussion 10-11.
[14]	Ueno K, Kumabe S, Nakatsuka M, et al. Factors influencing dental arch form[J]. Okajimas Folia Anat Jpn, 2019, 96(1): 31-46. doi: 10.2535/ofaj.96.31 pmid: 31462623
[15]	李蓉, 戴宁, 陈嵘, 等. 安氏Ⅱ¹类错牙合与正常牙合牙弓宽度的研究[J]. 临床口腔医学杂志, 2009, 25(11): 677-679.
[16]	Buschang PH, Roldan SI, Tadlock LP. Guidelines for assessing the growth and development of orthodontic patients[J]. Semin Orthod, 2017, 23(4): 321-335.
[17]	徐舒豪, 彭薇, 黄诗言, 等. 不同矢状骨性错牙合畸形牙弓及基骨宽度的比较研究[J]. 成都医学院学报, 2024, 19(1): 28-33.
[18]	陈上, 厉松. 自锁托槽解除上颌牙列拥挤后牙弓与牙齿的三维变化研究[J]. 中华口腔正畸学杂志, 2016, 23(2): 67-72.

分段	测量部位	Ⅱ类	Ⅰ类	P
前段	牙弓	27.12±2.53	23.54±2.49	0.000^**
	基骨	25.54±1.73	25.61±1.34	0.887
中段	牙弓	39.06±2.09	38.57±1.96	0.461
	基骨	40.86±1.96	41.49±1.85	0.315
后段	牙弓	46.86±2.73	47.70±2.63	0.343
	基骨	50.67±2.22	51.94±2.43	0.095

分段		宽度差	t	P
前段	Ⅱ类	-1.58±2.44	4.527	0.000^*
	Ⅰ类	2.08±2.59
中段	Ⅱ类	1.80±1.49	2.298	0.027^*
	Ⅰ类	2.92±1.54
后段	Ⅱ类	3.80±1.42	1.011	0.318
	Ⅰ类	4.24±1.20

Study on the morphology of the mandibular basal bone and dental arch of skeletal Class Ⅱ malocclusion

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