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KCI등재후보 학술저널

가토의 대퇴골에 이식된 치과용 임프란트 nProtect-447n의 골결합에 대한 연구

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Osseointegrated dental implants are have used for the fixation of dental prosthesis with good long tern clinical results. The unique combination of tapered implant body with screw divided to three parts in Protect-447 dental implant system makes newly designed implant extremely strong initial stability, better stress distribution, less bone reduction during surgical procedure. The purpose of present study was to evaluate histomorphometric examination and removal torque value of newly developed dental implant Protect-447 in the femur of rabbits. After 12 weeks of healing of the implantation, bone contact ratio and bone regeneration rate for histomorphometric examination and removal torque values were compared to evaluate osseointegration properties of Protect-447 dental implant. Obtained results were as follows: 1. Protect-447 dental implants showed 59.8% of bone to implant contact ratio, whereas imported dental implants showed 54.5% (statistically no difference p<0.05). 2. Protect-447 dental implants showed mean bone regeneration rate 63.4%, whereas imported dental implants showed 49.7% (statistically difference p<0.05). 3. Protect-447 dental implants demonstrated mean removal torque values 40.5Ncm, whereas mean removal torque values of imported dental implants showed 39.3Ncm.

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