scholarly journals Comparison of Mini-implant-supported Mandibular Canine Retraction with and without Submucosal Injection of Platelet-rich Plasma: A Split-mouth Study

2021 ◽  
Vol 12 (6) ◽  
pp. 446-452
Author(s):  
Nithin V Joy ◽  
Hurkadle Jyothikiran ◽  
Nagasundar Rao Raghunath
Keyword(s):  
Platelet Rich Plasma ◽  
Submucosal Injection ◽  
Canine Retraction ◽  
Mandibular Canine

The Effect Of Submucosal Injection Of Platelet-Rich Plasma On Maxillary Canine Retraction: Split-Mouth Randomized Controlled Trial

2021 ◽  
Vol 9 (1) ◽  
pp. 67-72
Author(s):  
Reham Ibrahim El Gazzar ◽  
Ahmed Mohamed Hafez ◽  
Marwa Sameh Shamaa ◽  
Mohammad Hosam Eldeen Zaghloul ◽  
Yasser Lotfy Abdelnaby
Keyword(s):  
Randomized Controlled Trial ◽  
Platelet Rich Plasma ◽  
Controlled Trial ◽  
Maxillary Canine ◽  
Submucosal Injection ◽  
Canine Retraction ◽  
Randomized Controlled

scholarly journals Effect of platelet-rich plasma on the rate of orthodontic tooth movement:

2020 ◽  
Vol 90 (3) ◽  
pp. 354-361 ◽  
Author(s):  
Ahmed El-Timamy ◽  
Fouad El Sharaby ◽  
Faten Eid ◽  
Amr El Dakroury ◽  
Yehya Mostafa ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Platelet Rich Plasma ◽  
Orthodontic Tooth Movement ◽  
The Other ◽  
Positive Potential ◽  
Canine Retraction ◽  
Steady Rate ◽  
Significant Difference ◽  
To Receive ◽  
Retraction Force

ABSTRACT Objective To investigate the effect of local injection of platelet-rich plasma (PRP) on the rate of orthodontic tooth movement. Materials and Methods Sixteen female patients were randomly allocated in a split-mouth study design to receive PRP injections with CaCl2 activating solution on one side (intervention side) while the other side received CaCl2 injection only (control side). Canine retraction was performed on 0.017 × 0.025-inch stainless steel archwire applying 1.5 N retraction force. PRP and CaCl2 injections were done at 0, 3, and 6 weeks. The duration of the study was 4 months. Data were collected from digitized models. Assessment of pain accompanying the procedure was done using a visual analogue scale. Results The rate of canine retraction was faster on the intervention side in the first 2 months, with a statistically significant difference in the first month (P = .049). On the other hand, the rate was statistically significantly slower on the intervention side in the third month following cessation of PRP injections (P = .02). Pain increased following injections on both sides. Conclusions PRP showed a positive potential to accelerate the rate of tooth movement when injected in the first 2 months. Repeated injections of PRP to maintain a steady rate of accelerated tooth movement warrant further investigation.

scholarly journals Submucosal injection of platelet-rich plasma in endoscopic resection of large sessile lesions

2018 ◽  
Vol 10 (11) ◽  
pp. 348-353 ◽  
Author(s):  
Vicente Lorenzo-Zúñiga ◽  
Vicente Moreno de Vega ◽  
Ramón Bartolí ◽  
Ingrid Marín ◽  
Noemí Caballero ◽  
...  
Keyword(s):  
Endoscopic Resection ◽  
Platelet Rich Plasma ◽  
Submucosal Injection

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 Effects of submucosally administered platelet-rich plasma on the rate of tooth movement:

2021 ◽  
Author(s):  
Saraa L. Angel ◽  
Vilas D. Samrit ◽  
Om Prakash Kharbanda ◽  
Ritu Duggal ◽  
Vikas Kumar ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Gingival Crevicular Fluid ◽  
Platelet Rich Plasma ◽  
Steel Wire ◽  
Nuclear Factor Κb ◽  
Enzyme Linked Immunosorbent Assay ◽  
Maxillary Canine ◽  
Canine Retraction ◽  
Control Side ◽  
Experimental Side

ABSTRACT Objectives To evaluate the effects of submucosally administered platelet-rich plasma (PRP) on the rate of maxillary canine retraction. Levels of soluble receptor activator of nuclear factor-κb ligand (sRANKL) and osteoprotegerin (OPG) in the gingival crevicular fluid (GCF) were also measured over 2 months. Materials and Methods This split-mouth trial involved 20 sites in 10 subjects randomly assigned to PRP (experimental) side and control side. After alignment, the freshly prepared PRP was injected submucosally distal to the experimental side maxillary canine, and retraction was performed using NiTi closed-coil springs (150 g) on 0.019 × 0.025-inch stainless steel wire. The rate of canine movement was assessed using digital model superimposition at 0, 30, and 60 days. The OPG and sRANKL were assayed using enzyme-linked immunosorbent assay from GCF collected at 0, 1, 7, 21, 30, and 60 days. Results Twenty sites were analyzed using paired t test. The rate of tooth movement increased significantly by 35% on the PRP side compared with the control side in the first month (P = .0001) and by 14% at the end of the second month (P = .015). Using the Mann–Whitney U test, OPG levels were found to be significantly decreased on the 7th (P = .003) and 30th day on the PRP side (P = .01), while sRANKL became detectable by the third week postinjection on the PRP side (P = .069). Conclusions Submucosal injection of platelet-rich plasma significantly increased tooth movement during the 60-day observation period. Local injection of PRP significantly altered the levels of OPG and sRANKL in GCF.

scholarly journals Comparative photoelastic study of dental and skeletal anchorages in the canine retraction

2014 ◽  
Vol 19 (1) ◽  
pp. 100-105 ◽  
Author(s):  
Cristiane Aparecida de Assis Claro ◽  
Rosana Villela Chagas ◽  
Ana Christina Elias Claro Neves ◽  
Laís Regiane da Silva-Concílio
Keyword(s):  
Stress Distribution ◽  
Rubber Band ◽  
Cervical Region ◽  
Skeletal Anchorage ◽  
Distribution Analysis ◽  
Test Results ◽  
Second Molar ◽  
Canine Retraction ◽  
Photoelastic Model ◽  
Mandibular Canine

OBJECTIVE: To compare dental and skeletal anchorages in mandibular canine retraction by means of a stress distribution analysis. METHODS: A photoelastic model was produced from second molar to canine, without the first premolar, and mandibular canine retraction was simulated by a rubber band tied to two types of anchorage: dental anchorage, in the first molar attached to adjacent teeth, and skeletal anchorage with a hook simulating the mini-implant. The forces were applied 10 times and observed in a circular polariscope. The stresses located in the mandibular canine were recorded in 7 regions. The Mann-Whitney test was employed to compare the stress in each region and between both anchorage systems. The stresses in the mandibular canine periradicular regions were compared by the Kruskal-Wallis test. RESULTS: Stresses were similar in the cervical region and the middle third. In the apical third, the stresses associated with skeletal anchorage were higher than the stresses associated with dental anchorage. The results of the Kruskal-Wallis test showed that the highest stresses were identified in the cervical-distal, apical-distal, and apex regions with the use of dental anchorage, and in the apical-distal, apical-mesial, cervical-distal, and apex regions with the use of skeletal anchorage. CONCLUSIONS: The use of skeletal anchorage in canine retraction caused greater stress in the apical third than the use of dental anchorage, which indicates an intrusive component resulting from the direction of the force due to the position of the mini-implant and the bracket hook of the canine.

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

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