The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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Evaluation of narrow-diameter implant with trapezoid-shape design and microthreads in beagle dogs: A pilot study

성견에서 사다리꼴형 디자인과 미세나사선을 가진 단폭경임플란트의 골유착 평가: 예비연구

  • Chang, Yun-Young (Division of Periodontology, Department of Dentistry, Inha International Medical Center) ;
  • Yun, Jeong-Ho (Department of Periodontology, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University)
  • 장윤영 (인하국제의료센터 치주과) ;
  • 윤정호 (전북대학교 치의학전문대학원 치주과학교실, 구강생체과학연구소)
  • Received : 2016.05.18
  • Accepted : 2016.06.20
  • Published : 2016.07.01
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Abstract

Objective: The objective of this study was to evaluate the osseointegration of narrow-diameter implant with trapezoid-shape and to evaluate the effect of coronal microthreads on trapezoid-shape narrow-diameter implant. Materials and Methods: The experimental narrow-diameter implants were classified into two groups according to absence or presence of coronal microthreads: trapezoid-shape narrow diameter implant (TN group) and trapezoid-shape narrow-diameter implant with microthreads (TNM group). They were installed alternately in bilateral mandible in three dogs. After 8 weeks, the animals were sacrificed. Resonance frequency analysis, removal torque test, and histometric analysis were performed. Results: Statistically higher implant stability quotient (ISQ) values were observed in TNM group than in TN group at the time of implant installation. However, significant ISQ values difference was not observed between groups at 8 weeks. Both groups showed significantly increased ISQ values at 8 weeks, compared to the time of implant installation. There was no significant difference between groups in removal torque test. Bone-implant contact ratio also showed no significant difference between groups in total and coronal part. Conclusion: Within the limitation of this study, it could be concluded that the trapezoid-shape design on narrow-diameter implant showed successful ossointegration, and the microthreads on coronal part did not result in significant bone-implant contact and biomechanical stability at 8 weeks.

Keywords

Acknowledgement

Supported by : 산업통상자원부

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