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

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

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

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

scholarly journals Leptin levels in gingival crevicular fluid during canine retraction: in vivo comparative study

2019 ◽  
Vol 46 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Sanjit Kumar Sar ◽  
Divya Shetty ◽  
Piush Kumar ◽  
Saurabh Juneja ◽  
Payal Sharma
Keyword(s):  
Tooth Movement ◽  
Gingival Crevicular Fluid ◽  
Nickel Titanium ◽  
Coil Spring ◽  
Canine Retraction ◽  
Space Closure ◽  
Significant Difference ◽  
Elisa Technique ◽  
Crevicular Fluid

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.

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

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.

scholarly journals Photogrammetric analysis of postextraction space closure

2021 ◽  
Vol 68 (2) ◽  
pp. 59-67
Author(s):  
Mirjana Umicevic-Davidovic ◽  
Marijana Arapovic-Savic ◽  
Adriana Arbutina ◽  
Tijana Adamovic ◽  
Igor Djukic
Keyword(s):  
Orthodontic Treatment ◽  
Treatment Plan ◽  
Total Sample ◽  
Orthodontic Appliances ◽  
Results Of Treatment ◽  
Aesthetic Appearance ◽  
Space Closure ◽  
Fixed Orthodontic Appliances ◽  
The Difference ◽  
Digital Caliper

Introduction. When planning orthodontic treatment, it is sometimes necessary to apply the extraction of individual teeth, in order to achieve proper occlusion and an acceptable aesthetic appearance. Clinicians give the greatest advantage to elastic chains as a method for post-extraction space closure during treatment with fixed orthodontic appliances. When closing post-extraction spaces, it is necessary to measure them in order to adjust the treatment plan. One of the most acceptable methods is photogrammetry. The aim of this study was to analyze, using a photogrammetric method, the efficacy of post-extraction space closure with elastic chains during orthodontic treatment with fixed orthodontic appliances. Material and Methods. The total sample in study consisted of 38 post-extraction spaces in 19 patients who were indicated for first premolars extraction and use of fixed orthodontic appliances in order to achieve treatment goal. Elastic chains were used to close post-extraction spaces. Post-extraction sites were monitored for 6 months with follow-up examinations every 4 weeks. Mechanisms were activated at controlled examinations, and measurements of the width of post-extraction spaces were performed by photogrammetry and digital caliper. Results. The results showed that average reduction of post-extraction space width was 1.00 mm per month by photogrammetric measurement, while the average values of measurements with a digital caliper were 1.02 mm. The average values were measured in six time intervals and a statistically significant change in average intervals of post-extraction spaces during 6 months was determined. Conclusion. The elastic chain has proven to be a very effective mechanism for closing post-extraction space, and photogrammetry as a simple and precise method for monitoring results of treatment. Since the difference in relation to measurements with a digital caliper is minimal, photogrammetry can be routinely applied in everyday practice.

scholarly journals Effect of fixed orthodontic appliances on nonmicrobial salivary parameters

2018 ◽  
Vol 88 (6) ◽  
pp. 806-811 ◽  
Author(s):  
Ioannis P. Zogakis ◽  
Erez Koren ◽  
Shlomit Gorelik ◽  
Isaac Ginsburg ◽  
Miriam Shalish
Keyword(s):  
Orthodontic Treatment ◽  
Statistical Significance ◽  
Orthodontic Appliances ◽  
Inclusion Criteria ◽  
Reactive Protein ◽  
Fixed Orthodontic Appliances ◽  
Salivary Ph ◽  
Orthodontic Patients ◽  
The Difference ◽  
Ph Decrease

ABSTRACT Objectives: To examine possible changes in the levels of salivary antioxidants, C-reactive protein (CRP), cortisol, pH, proteins, and blood in patients treated with fixed orthodontic appliances. Materials and Methods: Salivary samples from 21 orthodontic patients who met specific inclusion criteria were collected before the beginning of orthodontic treatment (T0; baseline), 1 hour after bonding (T1), and 4–6 weeks after bonding (T2). Oxidant-scavenging ability (OSA) was quantified using a luminol-dependent chemiluminescence assay. Cortisol and CRP levels were measured using immunoassay kits. pH levels and presence of proteins and blood in the samples were quantified using strip-based tests. Results: A significant decrease in salivary pH was observed after bonding (P = .013). An increase in oxidant-scavenging abilities during orthodontic treatment was detected, but the change was not statistically significant. Cortisol and CRP levels slightly increased after bonding, but the difference was small without statistical significance. Changes in the presence of proteins and blood were also insignificant. Conclusions: Exposure to fixed orthodontic appliances did not show a significant effect on salivary parameters related to inflammation or stress, with the exception of a significant but transient pH decrease after bonding.

Salivary Sodium and Potassium Concentrations in Patients with Fixed Orthodontic Appliances

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Mahsa Esfehani ◽  
Bahareh Mohammad Zahraiee ◽  
Sepideh Arab ◽  
Fatemeh Hajmanoochehri ◽  
Mohammadtaghi Vatandoust
Keyword(s):  
Orthodontic Treatment ◽  
Sodium Concentration ◽  
Control Group ◽  
P Value ◽  
Case Group ◽  
Orthodontic Appliances ◽  
Potassium Ions ◽  
Fixed Orthodontic Appliances ◽  
Sodium And Potassium ◽  
Control Study

Objectives: This study was aimed to assess salivary sodium and potassium concentrations in patients with fixed orthodontic appliances. Methods: In this case-control study, saliva samples (5 cc) were collected from 13 patients with fixed orthodontic appliances before, and 1 week, 1 month and 3 months after the beginning of the orthodontic treatment using the spitting method. Saliva samples were also collected from 10 healthy individuals as controls. The saliva samples were centrifuged at 3000 rpm for 10 minutes and the salivary sodium and potassium concentrations were measured by spectrophotometry. Data were analyzed using independent and paired t-tests. P-value < 0.05 was considered as significant. Results: The salivary sodium and potassium concentrations were almost the same in both groups at baseline (P > 0.05). A significant reduction in sodium and an increase in potassium levels were noted in the case group at 1 week compared with baseline (P < 0.001). At 1 week, the potassium concentration was significantly higher and the sodium concentration was significantly lower in the case group (P < 0.01). The salivary sodium significantly increased while the salivary potassium significantly decreased at 1 month compared with 1 week (P < 0.001). The differences with the control group were also significant (P < 0.05). No significant differences were noted between the two groups at 3 months (P > 0.05). Conclusions: Time has a significant effect on the release profile of sodium and potassium ions from orthodontic appliances. The salivary sodium and potassium concentrations returned to their normal pretreatment values within 3 months after the start of fixed orthodontic treatment.

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

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

scholarly journals Relationship between orthodontic treatment and gingival health: A retrospective study

2014 ◽  
Vol 08 (03) ◽  
pp. 373-380 ◽  
Author(s):  
Fatma Boke ◽  
Cagri Gazioglu ◽  
Sevil Akkaya ◽  
Murat Akkaya
Keyword(s):  
Retrospective Study ◽  
Orthodontic Treatment ◽  
Gingival Recession ◽  
Orthodontic Appliances ◽  
Lower Incisor ◽  
Gingival Health ◽  
Fixed Orthodontic Appliances ◽  
Significant Difference ◽  
Before And After ◽  
The Relationship

ABSTRACT Objective: The aim of this retrospective study was to evaluate the relationship between orthodontic treatment and gingival health. Materials and Methods: A total of 251 patients among whom 177 were girls and 74 were boys, recruited from the records pool of the Department of Orthodontics, Faculty of Dentistry, University of Gazi, were included in the study. Patients’ treatments have been completed by postgraduate students during the period between 2006 and 2012. Patients’ folders were analyzed according to their age, treatment time, and the type of orthodontic treatment. Intra-oral photographs were analyzed, and the presence or absence of visible plaque, visible inflammation, and gingival recession were recorded, and incisor inclinations analyzed on lateral cephalometric films, before and after orthodontic treatment. Results: No statistically significant difference was found in patients treated with functional appliances before and after treatment. In patients treated with fixed orthodontic appliances, visible plaque, visible inflammation, and gingival recession showed significant increases after treatment, gingival biotype did not show any significant difference. Positive correlation was found between lower incisor position and gingival recession in patients treated with fixed appliance and extraction. And also cuspids were the teeth with the highest prevalence of gingival recession. Conclusion: Considering the relationship between orthodontic treatment and gingival health, cooperation among patients, orthodontists, and periodontists is important.

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