title: [Effect of static magnetic field on bone morphogenetic protein-2 in periodontal membrane of experimental periodontitis rat].
abstract: OBJECTIVE
  To evaluate the effect of static magnetic field on expression of bone morphogenetic protein-2(BMP-2) in the periodontal membrane of experimental periodontitis rat.
  
  
  METHODS
  Experimental periodontitis of rat was formed by ligaturing the neck of rat teeth and feeding sugar of high concentration. The magnet which the intensity of magnetic field was 0.12 tesla was put into their cheeks. The rats were sacrificed at 2nd day, 4th day and 7th day, respectively. Immuno-histochemical techniques were used to evaluate the change of BMP-2 expression.
  
  
  RESULTS
  BMP-2 was mainly found in the plasma of fibroblast, osteoblast, cementocyte and odontoblast separately. There was not clearly difference between the periodontitis group and the normal group, but BMP-2 in the experimental group treated with static magnetic field was higher than the two groups.
  
  
  CONCLUSIONS
  Static magnetic field plays an important role in repairing and remodeling of periodontitis.
authors.affiliation: Dept. of Oral Medicine, College of Stomatology, China Medical University, Shenyang 110002, China.
authors.forename: Li-Hong
authors.initials: LH
authors.lastname: Qiu
authors.forename: Ke
authors.initials: K
authors.lastname: Qin
authors.forename: Ming
authors.initials: M
authors.lastname: Zhong
authors.forename: Zhao-Yuan
authors.initials: ZY
authors.lastname: Wang
mesh_terms: D000818:Animals; D055396:Bone Morphogenetic Protein 2; D060526:Magnetic Fields; D010006:Osteoblasts; D010513:Periodontal Ligament; D010518:Periodontitis; D051381:Rats
chemical_list: D055396:Bone Morphogenetic Protein 2