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ORIGINAL ARTICLE
Year : 2017  |  Volume : 51  |  Issue : 2  |  Page : 75-80

Assessment of myeloperoxidase activity at different force levels in gingival crevicular fluid during initial phase of orthodontic tooth movement


1 PG Student, Department of Orthodontics and Dentofacial Orthopedics, VSPM Dental College and Research Centre, Nagpur, Maharashtra, India
2 HOD Prof. and Guide, Department of Orthodontics and Dentofacial Orthopedics, VSPM Dental College and Research Centre, Nagpur, Maharashtra, India
3 Reader, Department of Orthodontics and Dentofacial Orthopedics, VSPM Dental College and Research Centre, Nagpur, Maharashtra, India
4 Senior Lecturer, Department of Orthodontics and Dentofacial Orthopedics, VSPM Dental College and Research Centre, Nagpur, Maharashtra, India

Correspondence Address:
Honey Gurbaxani
Lakham Niwas, Kadbi Chowk, Nagpur - 440 004, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jios.jios_154_16

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Background: Orthodontic movements promote remodeling of the alveolar bone, which is mediated by inflammatory reactions such as characterized by vascular changes and infiltration of leukocytes. Changes in the periodontium occur, depending on the magnitude, duration, and direction of applied force. These changes are often seen in the saliva and gingival fluids through the various substances secreted in them. Aim: The present study aimed to assess myeloperoxidase (MPO) activity at different force levels in gingival crevicular fluid (GCF) during the initial phase of orthodontic tooth movement by varying the effective force levels to 50, 75, 100, and 150 g. Materials and Methods: A total of thirty participants between the age groups of 18–25 years requiring upper first premolar extractions were included in the study. They were divided into three groups (I, II, and III) of ten individuals each, again subdivided into two Subgroups A and B depending on the amount of force applied to the canine. Subgroup A of all the three groups used 150 g, whereas Subgroup B used 50, 75, and 100 g of force, respectively. GCF was collected at 2 h, 7 days, and 14 days of force application. Statistical Analysis: Paired t-test and ANOVA test were used to provide the descriptive statistics of mean optical density to detect the presence of MPO in GCF. Results and Conclusion: There was a highly significant increase in the MPO levels in the GCF at 14th day after force application which can be correlated to the onset of inflammatory reactions in the periodontium.


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