| Matrix metalloproteinases -1, -2, -3, -7, -8, -12, and -13 in gingival crevicular fluid during orthodontic tooth movement: a longitudinal randomized split-mouth study. | |
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MedLine Citation:
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PMID: 22989715 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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SUMMARY This randomized split-mouth study aimed to examine the levels of matrix metalloproteinases (MMPs) -1, -2, -3, -7, -8, -12, and -13 in the gingival crevicular fluid (GCF) at different time points during orthodontic tooth movement. A total of 16 healthy orthodontic subjects (7 females, 9 males; mean age, 17.7 years) who needed their first upper premolars extracted were enrolled. One randomly chosen maxillary canine was subjected to a distalizing force and was considered to be the test side. The contralateral canine, which was not subjected to any force but was included in the orthodontic appliance, was used as a control side. GCF sampling was performed at both the mesial (tension) and distal (pressure) test and control sites at baseline, immediately before applying the orthodontic appliance, and after 1 and 24 hours and 7, 14, and 21 days. A multiplexed bead immunoassay was used to analyse the GCF samples. The mean levels of the MMP-1, -2, -3, -7, -8, -12, and -13 were not significantly different between the test and control groups in each time showed. The comparisons between the tension and pressure sites were also not significantly different at each individual time. A few variations focused on MMP-1 and -3, but the expression of MMP-8 was higher than that of the other MMPs. MMPs are released in sufficient quantities such that tooth movement occurs but with no significant increase in GCF levels. |
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Authors:
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Cristiane Canavarro; Ricardo Palmier Teles; Jonas Capelli Júnior |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-9-17 |
Journal Detail:
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Title: European journal of orthodontics Volume: - ISSN: 1460-2210 ISO Abbreviation: Eur J Orthod Publication Date: 2012 Sep |
Date Detail:
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Created Date: 2012-9-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7909010 Medline TA: Eur J Orthod Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Orthodontics, School of Dentistry, State University of Rio de Janeiro, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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