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Beklen, A., Tüter, G., Sorsa, T., Hanemaaijer, R., Virta- nen, I., Tervahartiala, T. and Konttinen, Y.T. (2006) Gin- gival tissue and crevicular fluid co-operation in adult periodontitis. Journal of Dental Research, 85, 59-63. doi:10.1177/154405910608500110

has been cited by the following article:

• TITLE: Interleukin-1α and tumor necrosis factor-α expression on the compressed side of gingiva during orthodontic tooth movement

  AUTHORS: Hyoung-Seon Baik, Chong-Kwan Kim, Won Hee Lim, Youn Sic Chun

  KEYWORDS: Tooth Movement; Gingiva; Compressed Side; IL-1α; TNF-α

  JOURNAL NAME: Open Journal of Stomatology, Vol.2 No.3, September 27, 2012

  ABSTRACT: Objectives: The aim of this study was to investigate the effect of orthodontic loading on the expression of interleukin-1α (IL-1α) and tumor necrosis factor-α (TNF-α) in compressed gingiva. Materials and Methods: Twenty-four male Wistar rats were used with four rats as controls at day 0. In ten rats, corticotomy was performed on either left or right side and the re-maining side was served as control, and killed at 7 and 14 days. In the remaining ten rats, maxillary right and left first molars were moved orthodontically with a constant force of 20 g; appliance and appliance in conjunction with cortictomy (appliance-corticotomy) were sequentially alternated between left and right sides and euthanized at 7 and 14 days. Real time polymerase chain reactions of compressed gingiva excised from the euthanized rats was performed to measure mRNA expressions of IL-1α and TNF-α. Results: There were no significant differences in the expression of IL-1α between all the groups. On the other hand, TNF-α from the pressure side in the ap- pliance group and the appliance in conjunction with corticotomy group showed significant increase on the 7th day compared to that of either control or corticotomy group. Conclusions: Orthodontic loading induced the elevation of TNF-α in compressed gingiva