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Cytokine levels in crevicular fluid are less responsive to orthodontic force in adults than in juveniles

Objectives:  Bone remodelling during orthodontic tooth movement is related to the expression of mediators in gingival crevicular fluid (GCF). No information is available concerning the effect of age on the levels of these mediators in GCF. The purpose of this study was to quantify three mediators (p...

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Published in:Journal of clinical periodontology 2002-08, Vol.29 (8), p.757-762
Main Authors: Ren, Yijin, Maltha, Jaap C., Van′t Hof, Martin A., Von den Hoff, Johannes W., Kuijpers-Jagtman, Anne Marie, Zhang, Ding
Format: Article
Language:English
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Summary:Objectives:  Bone remodelling during orthodontic tooth movement is related to the expression of mediators in gingival crevicular fluid (GCF). No information is available concerning the effect of age on the levels of these mediators in GCF. The purpose of this study was to quantify three mediators (prostaglandin E2, interleukin‐6 and granulocyte‐Macrophage Colony‐Stimulating Factor) in GCF during orthodontic tooth movement in juveniles and adults. Material and methods:  A total of 43 juvenile patients (mean age 11 ± 0.7 year), and 41 adult patients (mean age 24 ± 1.6 year) took part in the study. One of the lateral incisors of each patient was tipped labially, the other served as control. GCF samples were taken before force activation (t0) and 24 h later (t24). Mediator levels were determined by radioimmunoassay (RIA). Results: PGE2 concentrations were significantly elevated at t24 in juveniles and adults, while concentrations of IL‐6 and GM‐CSF were significantly elevated only in juveniles. Total amounts of all three mediators in GCF significantly increased at t24 in both groups. Conclusions:  In early tooth movement, mediator levels in juveniles are more responsive than levels in adults, which agrees with the finding that the initial tooth movement in juveniles is faster than in adults and starts without delay. Zusammenfassung Cytokinlevel in der krevikulären Flüssigkeit sind weniger veränderbar bei Erwachsenen als bei Jugendlichen infolge orthodontischer Kräfte Ziele: Knochenremodellation während orthodontischer Zahnbewegung steht in Beziehung zur Expression von Mediatoren in der gingivalen Sulkusflüssigkeit (GCF). Es gibt keine Informationen bezüglich des Effektes von Alter auf die Level dieser Mediatoren in der GCF. Der Zweck dieser Studie war die Quantifizierung von drei Mediatoren (Prostaglandin E2, Interleukin‐6 und Granulozyten‐Makrophagen‐Kolonien‐stimulierender Faktor) in der GCF während orthodontischer Zahnbewegung bei Jugendlichen und Erwachsenen. Material und Methoden: Insgesamt 43 jugendliche Patienten (mittleres Alter 11±0.7 Jahre) und 41 erwachsene Patienten (mittleres Alter 24±1.6 Jahre) nahmen an der Studie teil. Einer der lateralen Schneidezähne jedes Patienten wurde nach labial gekippt, der andere diente als Kontrolle. GCF Proben wurden vor der Aktivation (t0) und 24 h später (t24) gewonnen. Die Mediatorenlevel wurden mit Radioimmunoassay (RIA) bestimmt. Ergebnisse: Die PGE2 Konzentrationen waren signifikant zum Zeitpunkt t24 bei Jugend
ISSN:0303-6979
1600-051X
DOI:10.1034/j.1600-051X.2002.290813.x