A Clinical Study on Correction of Lingual Inclination of Mandibular Second Molar with Square Wire Rotation Method

doi:10.13701/j.cnki.kqyxyj.2023.07.011

Abstract

Abstract: Objective: To introduce a method for correcting lingual inclination of mandibular second molar and discuss its effectiveness. Methods: Twenty-one patients with lingual inclination of mandibular second molar were selected from the orthodontic department of Anyang Sixth People's Hospital, and orthodontic treatment was performed using the square wire rotation method. The lateral cephalometric and panoramic films were measured and compared before and after treatment. Results: The lingual inclination of the mandibular second molar was corrected for all patients, and a good occlusal relationship was established. There was no obvious absorption of the root after correction, and the mandibular plane angle was slightly increased (P<0.05). Conclusion: The square wire rotation method is a simple and effective way to correct the lingual inclination of mandibular second molar.

Key words: lingual inclination of mandibular second molar, square wire rotation method, torque

SUN Liuzhen, ZHANG Lingyun. A Clinical Study on Correction of Lingual Inclination of Mandibular Second Molar with Square Wire Rotation Method[J]. Journal of Oral Science Research, 2023, 39(7): 625-627.

References

[1] Nakamura S, Miyajima K, Nagahara K, et al. Correction of single-tooth crossbite [J]. J Clin Orthod, 1995, 29(4):257-262.
[2] Agostino P, Ugolini A, Signori A, et al. Orthodontic treatment for posterior crossbites [J]. Cochrane Database Syst Rev, 2014, (8):CD000979.
[3] Binder RE. Correction of posterior crossbites: diagnosis and treatment [J]. Pediatr Dent, 2004, 26(3):266-272.
[4] 贾梦莹,邵博,辜文妍,等. 单侧后牙正锁牙合,关节弹响与咀嚼肌肌电的相关性研究 [J]. 口腔医学研究,2018,34(3):262-265.
[5] Ferro F, Spinella P, Lama N. Transverse maxillary arch form and mandibular asymmetry in patients with posterior unilateral crossbite [J]. Am J Orthod Dentofacial Orthop, 2011, 140(6):828-838.
[6] Primožič J, Baccetti T, Franchi L, et al. Three-dimensional assessment of palatal change in a controlled study of unilateral posterior crossbite correction in the primary dentition [J]. Eur J Orthod, 2013, 35(2):199-204.
[7] 彭雪姣,赵丹,陆苇,等.种植体支抗在下磨牙舌倾病例中的应用 [J]. 口腔医学研究,2009,25(1):112-113.
[8] 刘启明.自攻型微种植支抗钉在矫治下颌磨牙舌倾中的应用 [J]. 广东牙病防治,2013,21(9):489-491.
[9] 毛慧霞,李峰,元志昌,等.组合支抗种植体在下颌严重舌倾磨牙矫治中的应用 [J]. 中国美容医学,2015,24(24):51-54.
[10] Park JH, Kim TW. Correction of bilateral second molar scissors-bite during retention phase [J]. Int J Orthod Milwaukee, 2011, 22(2):39-43.
[11] 贝珉,李煌,马巧玲,等.舌向倾斜下颌第二磨牙的矫正 [J]. 实用口腔医学杂志,2016,32(2):283-285.
[12] 陆建锋,高美琴,顾永佳,等.骨皮质切开辅助矫正成人舌倾磨牙的临床研究 [J]. 口腔医学,2015,(12):1048-1052.
[13] Tomonari H, Kubota T, Yagi T, et al. Posterior scissors-bite: masticatory jaw movement and muscle activity [J]. J Oral Rehabil, 2014, 41(4):257-265.
[14] Wainwright WM. Faciolingual tooth movement: its influence on the root and cortical plate [J]. Am J Orthod, 1973, 64(3):278-302.
[15] 马轩祥.口腔修复学 [M].第5版.北京:人民卫生出版社,2004.147.
[16] 魏治统,杜傅诗,赵云凤,等.牙周膜面积的测量 [J]. 中华口腔科杂志,1964,10(1):9-12.
[17] Meling TR, Ødegaard J, Meling EØ. On mechanical properties of square and rectangular stainless steel wires tested in torsion [J]. Am J Orthod Dentofacial Orthop, 1997, 111(3):310-320.
[18] 黄宁,辜岷,韩向龙,等.正畸方丝转矩力的分析 [J].华西口腔医学杂志,2008,26(2):152-155.