The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Effects of counter torque and transposition (transfer) of installed implants timing on their integration in dog tibia

  • Karimi, Mohammad Reza (Department of Periodontics, Dental Branch, Islamic Azad University) ;
  • Fathi, Shima (Postgraduate of Oral Medicine, Dental Branch, Hamadan University of Medical Sciences) ;
  • Ghanavati, Farzin (Department of Periodontics, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences)
  • Received : 2014.07.31
  • Accepted : 2014.11.07
  • Published : 2015.02.27
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Abstract

PURPOSE. The purpose of this research was to evaluate the amount of reosseointegration after counter torquing (reverse torque) and transposing the installed implants at different times. MATERIALS AND METHODS. This study was done on ten tibiae of five cross-bred dogs. At the first day one implant was installed in each tibia. After one week half of the implants were randomly counter torqued (1WCT) and the other half were explanted and reimplanted in a new juxtaposition site (transposed)(1WT). At the same time three new implants were installed in each dog, one of them was considered as one week control (1WC) and remaining two as 8 week groups (8WCT&8WT). After eight weeks the 1WCT and 1WT implants were loosened by counter torque and the quantity of needed force for liberation was measured with the digital device (BGI). At the same time one implant was installed in each dog as eight week control (8WC) and the same protocol was repeated for 8 week groups after another 8 weeks. RESULTS. All implants were osseointegrated. Mean quantities of osseointegration in case groups indicated better amounts rather than control groups. CONCLUSION. Counter torque or transposition of the installed implants one week or eight weeks after the implantation did lead to osseointegration.

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References

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