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ORIGINAL ARTICLE
Year : 2019  |  Volume : 8  |  Issue : 7  |  Page : 2373-2377

Evaluation of levels of Interleukin-1b, intensity of pain and tooth movement during canine retraction using different magnitudes of continuous orthodontic force


1 Department of Orthodontics and Dentofacial Orthopedics, Mekelle University, Mekelle, Tigray, Ethiopia
2 Department of Orthodontics and Dentofacial Orthopedics, Kothiwal Dental College and Research Center, Mora Mustaqueem, Moradabad, Uttar Pradesh, India
3 Department of Orthodontics and Dentofacial Orthopedics, Yadav Dental and Orthodontic Centre, New Delhi, India
4 Professor and Head, Department of Dentistry, University College of Medical Sciences and Guruteg Bahadur Hospital, Dilshad Garden, Delhi, India
5 Post Graduate Student, Mithila Minority Dental College, Darbhanga, Bihar, India

Correspondence Address:
Dr. Poonam K Jayaprakash
Department of Orthodontics and Dentofacial Orthopedics, Kothiwal Dental College and Research Center, Mora Mustaqueem, Moradabad - 244 001, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jfmpc.jfmpc_357_19

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Aim: The present study was conducted for the evaluation of Interleukin (IL)-1b levels in human gingival crevicular fluid (GCF), intensity of pain, and the amount of tooth movement measured during canine retraction using different magnitudes of continuous orthodontic force. Materials and Method: A statistically significant number of subjects were included for the study (n = 16, 6 male subjects and 10 female subjects). The age ranged from 18 to 24 years and all were diagnosed with Class I bimaxillary protrusion. They underwent first premolar extractions prior to participating in the study. The maxillary cuspids were then retracted using a continuous force of either 50 or 150 g. This was executed using nickel–titanium coil springs on segmented archwires. The opposite counterpart, that is, mandibular cuspid was used as control. GCF was then drawn from the distal aspect of each tooth at defined time intervals. This was followed by the assessment of IL-1b concentrations, pain intensity, using the visual analogue scale (VAS), and the amount of tooth movement. ANOVA test, Friedman test, and paired t-tests were used for comparisons of IL-1b in GCF, the plaque and gingival indices, and the efficiency of tooth movement on pain perception, respectively. Results: The 150 g group showed the highest level of IL-1b concentration at 24 h from baseline and at 2 with significant differences compared with the control group (P < 0.05). The mean VAS score of pain intensity from the 150 g force was significantly greater than from the 50 g force at 24 h (P < 0.01). Conclusion: No significant difference in the amount of tooth movement was found between these two different magnitudes of continuous force at 2 months. A 50 g force could effectively induce tooth movement similar to 150 g with less pain and less inflammation.


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