Int J Stomatol

Int J Stomatol ›› 2020, Vol. 47 ›› Issue (4): 491-496.doi: 10.7518/gjkq.2020069

• Methodological Introduction • Previous Articles    

Clinical application of a novel torque control auxiliary: crimpable gate spring

Zheng Dan,Yi Jianru,Li Yu(),Zhao Zhihe   

  1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2019-11-21 Revised:2020-03-24 Online:2020-07-01 Published:2020-07-10
  • Contact: Yu Li E-mail:yuli@scu.edu.cn
  • Supported by:
    This study was supported by General Program of National Natural Science Foundation of China(31971247);Key Projects of Science and Technology Department of Sichuan Province(2018SZ0379)

RichHTML

332

PDF (PC)

2191

Abstract:

Torque control is critical for orthodontic treatment. However, current torque control approaches are still unsatisfactory. This article aims to introduce crimpable gate spring, a novel, customizable torquing auxiliary that comprises a U loop and two crimpable clips. According to the height of the U loop, the spring has two types: 6 and 8 mm. The large arm of the force contributes to its high efficiency for torque control, and crimpable clips facilitate easy repair. Force is applied by bending the U loop at a certain angle; the force is substantial when the bending angle is large. Lingual and labial root torques are produced by placing the U loop in the gingival and incisal directions, respectively. The torque of the target tooth can generally be changed two to three months after force application.

Key words: torque, crimpable gate spring, fixed appliance

CLC Number: 

  • R783.5

TrendMD: 

Fig 1

The construction of crimpable gate spring"

Fig 2

Rotational center of tooth in the application of crimpable gate spring"

Fig 3

Double ligation"

Fig 4

Control torque and close the space at the same time"

Tab 1

Force value produced by different bending an-gles on 6 and 8 mm crimpable gate spring"

加力弯曲角度/° 6 mm U形曲顶端产生力值/N 8 mm U形曲顶端产生力值/N
5 1.23±0.17 0.77±0.09
10 2.46±0.11 1.42±0.15
15 3.23±0.05 2.16±0.04
20 3.99±0.07 2.79±0.15
25 4.99±0.08 3.35±0.07

Fig 5

Lingual root torque of labial malpositioned canine"

Fig 6

Lingual root torque of maxillary central incisors"

Fig 7

Labial root torque of maxillary lateral incisors"

Fig 8

The mechanics of crimpable gate spring"

Fig 9

The construction of Warren spring"

Fig 10

The advantages of crimpable gate spring in clinical application"

[1] Ghaleb N, Bouserhal J, Bassil-Nassif N. Aesthetic evaluation of profile incisor inclination[J]. Eur J Orthod, 2011,33(3):228-235.
doi: 10.1093/ejo/cjq059 pmid: 20716642
[2] Işiksal E, Hazar S, Akyalçin S. Smile esthetics: per-ception and comparison of treated and untreated smiles[J]. Am J Orthod Dentofacial Orthop, 2006,129(1):8-16.
doi: 10.1016/j.ajodo.2005.07.004 pmid: 16443472
[3] Maglione HO, Roldan OV, Carreira R, et al. Analysis of condylar path inclination and incisal guidance[J]. Cranio, 1989,7(4):300-304.
doi: 10.1080/08869634.1989.11746270 pmid: 2640166
[4] Feng F, Liu YF, Chi JW, et al. Effects of anterior tooth crown inclination on occlusal relationship-A study in three-dimensional reconstruction[J]. Arch Oral Biol, 2018,94:48-53.
doi: 10.1016/j.archoralbio.2018.06.015 pmid: 29957456
[5] Heiser W, Richter M, Niederwanger A, et al. Asso-ciation of the canine guidance angle with maxillary and mandibular intercanine widths and anterior alignment relapse: extraction vs nonextraction treat-ment[J]. Am J Orthod Dentofac Orthop, 2008,133(5):669-680.
[6] Ahn HW, Moon SC, Baek SH. Morphometric eva-luation of changes in the alveolar bone and roots of the maxillary anterior teeth before and after en masse retraction using cone-beam computed tomography[J]. Angle Orthod, 2013,83(2):212-221.
doi: 10.2319/041812-325.1 pmid: 23066654
[7] Wichelhaus A. A new elastic slot system and V-wire mechanics[J]. Angle Orthod, 2017,87(5):774-781.
doi: 10.2319/121516-899 pmid: 28530449
[8] 李宇, 关宇, 潘兰兰, 等. 高效改正单个牙转矩的门形辅弓[J]. 华西口腔医学杂志, 2012,30(2):222-223.
Li Y, Guan Y, Pan LL, et al. A gate spring which can torque an individual tooth with high efficiency[J]. West China J Stomatol, 2012,30(2):222-223.
[9] Bartley N, Türk T, Colak C, et al. Physical properties of root cementum: part 17. Root resorption after the application of 2.5° and 15° of buccal root torque for 4 weeks: a microcomputed tomography study[J]. Am J Orthod Dentofacial Orthop, 2011,139(4):e353-e360.
doi: 10.1016/j.ajodo.2010.01.033 pmid: 21457842
[10] Meling TR, Odegaard J, Seqner D. On bracket slot height: a methodologic study[J]. Am J Orthod Dento-facial Orthop, 1998,113(4):387-393.
[11] Archambault A, Lacoursiere R, Badawi H, et al. Tor-que expression in stainless steel orthodontic brackets. A systematic review[J]. Angle Orthod, 2010,80(1):201-210.
doi: 10.2319/080508-352.1 pmid: 19852662
[1] Zhu Yeling,Wang Xi,Sun Tiantong,Wang Lina,He Xiaoming,Li Jiazhi. Improved application of a novel device that could achieve dental arch mesialization [J]. Int J Stomatol, 2023, 50(1): 82-90.
[2] Zhao Zhihe. Comparison of anterior tooth torque design in digital orthodontics [J]. Int J Stomatol, 2021, 48(1): 1-6.
[3] Li Chenghao,Li Yeping,Shi Bing. West China’s viewpoints on core problems of cleft lip-nose repair [J]. Int J Stomatol, 2019, 46(4): 383-386.
[4] Zhu Yuting, Liu Jiangfeng, Li Xiaoxing, Huang Jiangyong, Li Yanli. Research on clinical application of inhibitory effects of Clinpro™ White Varnish tooth mineralization during orthodontic treatment with fixed appliance [J]. Inter J Stomatol, 2015, 42(3): 306-309.
[5] Lin Bin, Liang Jiaxing, Lin Li, Zhang Yuhua, Li Duo. Clinical application of an efficient root torque auxiliary arch of individual tooth [J]. Inter J Stomatol, 2014, 41(6): 643-646.
[6] Ban Jiandong, Li Junke, Hou Yan, Yang Xiaorui, Wang Shuangqing. Influence of K file preflaring and torque on the separation of ProTaper rotary instruments [J]. Inter J Stomatol, 2014, 41(3): 289-291.
[7] Guo Yongjuan, Liu Yi. The impact of nickel ions released from orthodontic fixed appliances on the whole organism [J]. Inter J Stomatol, 2013, 40(6): 758-759.
[8] JIANG Chun-miao, AN Shu, WANG Jun. . Review on the factors affecting torque expression in orthodontic treatment [J]. Inter J Stomatol, 2011, 38(1): 115-118.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] . [J]. Foreign Med Sci: Stomatol, 1999, 26(06): .
[2] . [J]. Foreign Med Sci: Stomatol, 1999, 26(05): .
[3] . [J]. Foreign Med Sci: Stomatol, 1999, 26(05): .
[4] . [J]. Foreign Med Sci: Stomatol, 1999, 26(05): .
[5] . [J]. Foreign Med Sci: Stomatol, 1999, 26(05): .
[6] . [J]. Foreign Med Sci: Stomatol, 1999, 26(04): .
[7] . [J]. Foreign Med Sci: Stomatol, 2005, 32(06): 458 -460 .
[8] . [J]. Foreign Med Sci: Stomatol, 2005, 32(06): 452 -454 .
[9] . [J]. Inter J Stomatol, 2008, 35(S1): .
[10] . [J]. Inter J Stomatol, 2008, 35(S1): .