Zieliński Rafał, Puszkarz Adam K, Piętka Tomasz, Sowiński Jerzy, Sadowska-Sowińska Monika, Kołkowska Agata, Simka Wojciech
Stomatologia na Ksieżym Młynie, Lodz, 16D Tymienieckiego, 90-365 Lodz, Poland.
Textile Institute, Faculty of Material Technologies and Textile Design, Lodz University of Technology, 116 Żeromskiego Street, 90-924 Lodz, Poland.
Materials (Basel). 2024 Nov 5;17(22):5396. doi: 10.3390/ma17225396.
This study evaluated the bone-to-implant contact (BIC) of various surface-treated dental implants using high-resolution micro-CT in rabbit bone, focusing on the effects of different treatments on osseointegration and implant stability before and after bone demineralization. Six male New Zealand White rabbits were used. Four implant types were tested: machined surface with anodizing, only etching, sandblasting with AlO + etching, and sandblasting with TiO + etching. Implants were scanned with high-resolution micro-CT before and after demineralization. Parameters like implant volume, surface area, and BIC were determined using specific software tools. During demineralization, the BIC changed about 6% for machined surface with anodizing, 5% for only etching, 4% for sandblasting with AlO + etching, and 10% for sandblasting with TiO + etching. Demineralization reduced BIC percentages, notably in the machined surface with anodizing and sandblasting with TiO + etching groups. Etching and sandblasting combined with etching showed higher initial BIC compared to anodizing alone. Demineralization negatively impacted the BIC across all treatments. This study underscores the importance of surface modification in implant integration, especially in compromised bone. Further research with larger sample sizes and advanced techniques is recommended.
本研究使用高分辨率微型计算机断层扫描（micro-CT）评估了兔骨中各种表面处理的牙科种植体的骨与种植体接触（BIC）情况，重点关注不同处理对骨脱矿前后骨整合和种植体稳定性的影响。使用了6只雄性新西兰白兔。测试了四种种植体类型：阳极氧化加工表面、仅蚀刻、AlO喷砂加蚀刻以及TiO喷砂加蚀刻。在脱矿前后用高分辨率微型计算机断层扫描对种植体进行扫描。使用特定软件工具确定种植体体积、表面积和BIC等参数。在脱矿过程中，阳极氧化加工表面的BIC变化约6%，仅蚀刻的为5%，AlO喷砂加蚀刻的为4%，TiO喷砂加蚀刻的为10%。脱矿降低了BIC百分比，特别是在阳极氧化加工表面和TiO喷砂加蚀刻组中。与单独阳极氧化相比，蚀刻以及喷砂与蚀刻相结合显示出更高的初始BIC。脱矿对所有处理的BIC都有负面影响。本研究强调了表面改性在种植体整合中的重要性，尤其是在骨质受损的情况下。建议采用更大样本量和先进技术进行进一步研究。
