Evaluation of space closure rate during canine retraction with nickel titanium closed coil spring and elastomeric chain.

Objective: To evaluate and compare the leptin levels in gingival crevicular fluid (GCF) and rate of canine retraction using an elastomeric chain and nickel–titanium (NiTi) closed coil spring. Design: In vivo, clinical study. Setting: Orthodontic department at ITS Centre for Dental Studies and Research, Ghaziabad, India. Participants: Twenty-seven patients reported to the Department of Orthodontics at ITS Centre for Dental Studies and Research. Methods: Twenty-seven patients were included in the study in which canine retraction was carried out with an elastomeric chain and NiTi closed coil spring on either side of the arch applying 150 g of force on both sides. GCF samples were collected before the commencement of canine retraction, on the first, seventh and 21st day after application of force and were analysed for leptin levels by the ELISA technique. Impressions for the study model were taken at baseline and after 21 days to measure the rate of tooth movement bilaterally with an electronic digital calliper. Results: The results obtained within both groups showed a significant decrease in leptin levels from baseline to 21 days ( P = 0.0001). There was no significant difference in leptin levels between both groups, but leptin levels decreased more in the NiTi closed coil spring group. The rate of tooth movement is not significantly different between both groups, but space closure is faster in the NiTi closed coil spring group. Conclusions: Leptin levels in GCF showed a significant decrease during canine retraction using an elastomeric chain and NiTi coil spring; there was no significant difference in the rate of tooth movement between both the groups.

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Space Closure Rate in Mandibular Canine Retraction by Ni-Ti Closed Coil Spring: A Clinical Trial

Medicine Today ◽

10.3329/medtoday.v33i2.56050 ◽

2021 ◽

Vol 33 (2) ◽

pp. 90-93

Author(s):

Md Kamrul Hasan ◽

Gazi Shamim Hassan ◽

Samira Rahman ◽

Md Sher Ali ◽

Md Azizur Rahman ◽

...

Keyword(s):

Clinical Trial ◽

Orthodontic Treatment ◽

Delivery Systems ◽

Nickel Titanium ◽

Orthodontic Appliances ◽

Coil Spring ◽

Canine Retraction ◽

Space Closure ◽

Fixed Orthodontic Appliances ◽

Mandibular Canine

Introduction: In Majority of patients seeking orthodontic treatment, teeth must be extracted in order to obtain proper esthetics, occlusion, and stability as well as extraction of teeth is often a need to close residual space, after the initial decrowding and aligning. Pre adjusted fixed orthodontic appliances commonly utilize sliding mechanics for space closure with different types of force delivery systems. A variety of materials have been used as force delivery systems to close spaces between teeth as in the case of canine retraction after the extraction of premolars. Among all sliding or frictionless methods of canine retraction, super-elastic nickel titanium coil spring has a particular property in producing light continuous force at a long range of action, compared with previously available materials. Nickel-titanium closed coil spring, with a continuous action, might have some advantages in fixed appliance space closure mechanics. Materials and Methods: Over the period of one year from May 2015 to April 2016, this clinical trial was carried out and A total number of 20 patients (40 quadrants), who required canine retraction into first premolar extraction sites as part of their orthodontic treatment in the Department of Orthodontics of BSMMU selected as study population. The quadrants were affixed by nickel titanium closed coil springs (medium force, Ni-Ti extension spring, Ormco) with 200gm force measured by Correx Tension Gauge. Space closure was measured by means of direct measurement from the mesial surface of mesial wing of the 2nd premolar bracket and the distal surface of distal wing of the canine bracket with digital Vernier Calipers. Results: Mean space closer rate in mandibular canine retraction was 1.07 ± 0.12 mm/month by nickel-titanium (Ni-Ti) closed coil spring method with p value<0.001. Conclusion: This study revealed that space closer rate in mandibular canine retraction by nickel-titanium (Ni-Ti) closed coil spring is 1.07 ± 0.12 mm/month. Medicine Today 2021 Vol.33(2): 90-93

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Canine Retraction Using A Closed Nickel Titanium Coil Spring And An Elastic Module

Journal of College of Physicians And Surgeons Pakistan ◽

10.29271/jcpsp.2018.09.695 ◽

2018 ◽

Vol 28 (9) ◽

pp. 695-698

Author(s):

Zahra Khalid ◽

Azhar Ali Bangash ◽

Ayesha Anwar ◽

Hajra Pasha ◽

Erum Amin

Keyword(s):

Nickel Titanium ◽

Coil Spring ◽

Canine Retraction ◽

Elastic Module

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Pentraxin-3 Levels in Gingival Crevicular Fluid during Canine Retraction with Nickel–Titanium Coil Spring and Active Tieback

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-2112 ◽

2017 ◽

Vol 18 (8) ◽

pp. 710-713

Author(s):

Sukhpreet Mangat ◽

Rakesh Thukral ◽

Anvesha Ganguly ◽

Harleen Bali ◽

Shekhar Grover

Keyword(s):

Orthodontic Treatment ◽

Gingival Crevicular Fluid ◽

Nickel Titanium ◽

Enzyme Linked Immunosorbent Assay ◽

Pentraxin 3 ◽

Coil Spring ◽

Time Intervals ◽

Canine Retraction ◽

Significant Difference ◽

Crevicular Fluid

ABSTRACT Aim Orthodontic treatment is routinely carried out in patients with the purpose of correcting various forms of dental malocclusions. Retraction of the canines can be achieved either individually or along with incisor. Pentraxin-3 (PTX-3) is regarded as the true independent indicator of disease activity. Hence, we undertook the present study to assess and compare the level of PTX-3 in patients undergoing canine retraction with active tieback and Nickel–Titanium (NiTi) coil spring. Materials and methods The present study included assessment of 25 patients that underwent canine retraction as a part of fixed orthodontic treatment. In the maxillary right and left quadrant, active tieback and NiTi coil spring were used respectively. Gingival crevicular fluid samples were collected 1 hour prior to the commencement of orthodontic canine retraction procedure followed by collection at following time intervals: 1 hour, 1, 7, and 14 days after the start of canine retraction procedure. Enzyme-linked immunosorbent assay kit was used for analysis of the samples as per manufacturer's instructions. All the data were recorded and compiled. All the results were analyzed by Statistical Package for the Social Sciences software. Results Nonsignificant difference was observed in the values of PTX-3 at baseline and 1 hour. While comparing the mean PTX-3 values between different time intervals in both the study groups, significant difference was observed. Conclusion In comparison to the active tieback, NiTi coil exhibited faster space closure rate. Clinical significance In patients undergoing orthodontic treatment, PTX-3 is associated with periodontal remodeling under the effect of orthodontic forces. How to cite this article Thukral R, Mangat S, Ganguly A, Agarkar SS, Bali H, Grover S. Pentraxin-3 Levels in Gingival Crevicular Fluid during Canine Retraction with Nickel–Titanium Coil Spring and Active Tieback. J Contemp Dent Pract 2017; 18(8):710-713.

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Evaluation of Tipping, Rotation and rate of space Closure Rate of Canine Retraction by friction less orthodontic techniques (An In vitro Study)

Al-Rafidain Dental Journal ◽

10.33899/rden.2005.163257 ◽

2005 ◽

Vol 6 (3) ◽

pp. 30-37

Author(s):

Hussain Obaidi ◽

Omar Sabah

Keyword(s):

In Vitro Study ◽

Vitro Study ◽

Closure Rate ◽

Canine Retraction ◽

Space Closure

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Space Closure Rate in Mandibular Canine Retraction by Elastomeric Power Chain: A Clinical Trial

Chattagram Maa-O-Shishu Hospital Medical College Journal ◽

10.3329/cmoshmcj.v20i2.56469 ◽

2021 ◽

Vol 20 (2) ◽

pp. 28-31

Author(s):

Md Kamrul Hasan ◽

Gazi Shamim Hassan ◽

Samira Rahman ◽

Sher Ali ◽

Md Azizur Rahman ◽

...

Keyword(s):

Daily Basis ◽

Delivery Systems ◽

P Value ◽

Orthodontic Appliances ◽

Closure Rate ◽

Canine Retraction ◽

Space Closure ◽

Fixed Orthodontic Appliances ◽

Gauge Space ◽

Mandibular Canine

Background : On a daily basis, orthodontic patients present with malocclusions and orofacial imbalance. Often times, teeth must be extracted in order to obtain proper esthetics, occlusion, and stability as well as extraction of teeth is often a need to close residual space, after the initial decrowding and aligning. Pre adjusted fixed orthodontic appliances commonly utilize sliding mechanics for space closure with different types of force delivery systems. A variety of materials have been used as force delivery systems to close spaces between teeth as in the case of canine retraction after the extraction of premolars. Elastomeric auxiliaries are relatively consistent in producing tooth movements. The purpose of the study to evaluate the rate of mandibular canine retraction by elastomeric power chain. Materials and methods : This obervational study was designed as split mouth study. A total number of 20 patients (40 quadrants),who required canine retraction into first premolar extraction sites as part of their orthodontic treatment in the Department of Orthodontics, BSMMU as study population. The quadrants were affixed by elastomeric power chain (Dentaurum) with 200gm force measured by Correx Tension Gauge. Space closure was measured by means of direct measurement from the mesial surface of mesial wing of the 2nd premolar bracket and the distal surface of distal wing of the canine bracket with digital Vernier Calipers. Results: Mean space closer rate in mandibular canine retraction was 0.99 ± 0.08 mm/month in elastomeric power chain method with p value<0.001. Conclusion : This study revealed that space closer rate in mandibular canine retraction was 0.99 ± 0.08 mm/month by elastomeric power chain. Chatt Maa Shi Hosp Med Coll J; Vol.20 (2); July 2021; Page 28-31

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