The influence of two different types of surface modification with implants in experimental peri-implantitis
Chinese Journal of Clinical Anatomy ›› 2016, Vol. 34 ›› Issue (2) : 208-213.
The influence of two different types of surface modification with implants in experimental peri-implantitis
Objective To explore the influence of the occurance and development of experimental peri-implantitis between Sandblasted/Large-grit/Acide -tched (SLA) surface and nanoporous tantalum(Ta)-incorporated Sandblasted/Large-grit/Acide -tched (SLA) surface. Methods Two types of implants with different surface modification were implanted in the mandible of 6 Beagle dogs after the extraction of mandibular premolars. After prosthesis-abutment connection, suture line was twined to the neck of abutment in the experimental group, while there’s no suture in the control group. The implants were recorded sequentially from left to right of the distal as 1~6; 3、4 served as the control group while others served as the experimental group. Clinical indicators like plaque index, modified Sulcus Bleeding Index and probing depth were measured for 4 times. Micro-CT scan, surgical recording and pathological changes of peri-implant bone morphology were studied. MANOVA of repeated measuring was used. Result There were significant differences (P<0.05) for plaque index, modified Sulcus Bleeding Index and probing depth and surgical measurement between SLA+Ta twined with the suture group and SLA twined with the suture group, the degree of inflammation for SLA+Ta twined with the suture group were inferior to SLA twined with the suture group. Conclusion Implants with nanoporous tantalum(Ta)-incorporated Sandblasted/Large-grit/Acide -tched (SLA) surface shows postponed occurrence and development of peri-implantitis than Sandblasted/Large-grit/Acide -tched，(SLA) surface implants and can relieve the degree of inflammation.
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