title: Effect of low intensity pulsed ultrasound on repairing the periodontal bone of Beagle canines.
abstract: OBJECTIVE
  To investigate the repairing effect of low intensity pulsed ultrasound (LIPUS) on the Beagle canines periodontal bone defect.
  
  
  METHODS
  A total of 12 Beagle dogs with periodontal bone defect model were randomly divided into control group, LIPUS group, guided tissue regeneration (GTR) group and LIPUS+GTR group, with three in each. After completion of the models, no other proceeding was performed in control group; LIPUS group adopt direct exposure to radiation line LIPUS processing 1 week after modeling; GTR group adopted treatment with GTR, following the CTR standard operation reference; LIPUS+GTR group was treated with LIPUS joint GTR. Temperature change before treatment and histopathological change of periodontal tissue after repair was observed.
  
  
  RESULTS
  There was no significant difference in temperature changes of periodontal tissue between groups (P>0.05). The amount and maturity of LIPUS+GTR group were superior to other groups; new cementum, dental periodontal bones of GTR group were superior to the control group but less than LIPUS group; new collagen and maturity of the control group is not high relatively.
  
  
  CONCLUSIONS
  LIPUS can accelerate the calcium salt deposition and new bone maturation, thus it can serve as promoting periodontal tissue repair, and shortening the periodontal tissue repair time.
authors: Oral Medical School of North China University, Jilin 132011, China.
authors: Xiao-Qi
authors: XQ
authors: Gu
authors: Oral Medical School of North China University, Jilin 132011, China.
authors: Yong-Mei
authors: YM
authors: Li
authors: Oral Medical School of North China University, Jilin 132011, China.
authors: Jing
authors: J
authors: Guo
authors: Oral Medical School of North China University, Jilin 132011, China.
authors: Li-Hua
authors: LH
authors: Zhang
authors: Oral Medical School of North China University, Jilin 132011, China.
authors: Dong
authors: D
authors: Li
authors: Medical School of North China University, Jilin 132011, China. Electronic address: guxqitg@163.com.
authors: Xiao-Dong
authors: XD
authors: Gai
mesh_terms: D000818:Animals; D001861:Bone Regeneration / Q000528:radiation effects*; D004285:Dogs; D016557:Guided Tissue Regeneration, Periodontal / Q000379:methods; D006651:Histocytochemistry; D007568:Jaw / Q000000981:diagnostic imaging / Q000473:pathology / Q000528:radiation effects*; D008297:Male; D056948:Orthognathic Surgical Procedures; D010519:Periodontium / Q000000981:diagnostic imaging / Q000473:pathology / Q000528:radiation effects* / Q000601:surgery*; D011897:Random Allocation; D013016:Sound; D014464:Ultrasonic Therapy / Q000379:methods*; D014463:Ultrasonography
keywords: LIPUS; Periodontal bone defect; Repair