Y-TZP氧化锆植入体的推出实验研究

Abstract

Abstract: Objective To investigate the influence of new zirconia implant and surface modified method on the osseointegration to provide evidence for the development and application of the implant . Method Healthy adult New Zealand White male rabbits received two types of implant with identical geometry on the femur: sintered zironcia implant for NO.1,zirconia implant with 10% porous coating for NO.2. Each animal received two types of implant and then healed for three time periods （4,12,and 26 weeks）. At each healing time, a push-out test was performed to assess implants stability ,while scanning electron microscopy analysis（SEM）was performed to scan the bone-implant interface. Results Two independent samples t test analysis revealed that there were statistical differences between the two groups at each healing period(4 week t=103.345，P<0.001;12 week t=24.251，P<0.001;26 week t=20.854，P<0.001).Remarkable osseointegrationwas seen with sintered zironcia implant and 10% porous coating zironcia implant. Conclusion The new zirconia implant and surface modified method can enhance the osseointegration.

Key words: Key words: Zirconia , implant, Push-out test , Osseointegration

CLC Number:

R783.1

References

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The push-out test of Y-TZP zironcia implant material

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