Rong Mingdeng, Zhou Lei, Gou Zehong, Zhu Andi, Zhou Dongfeng
Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, China.
J Mater Sci Mater Med. 2009 Aug;20(8):1721-8. doi: 10.1007/s10856-009-3730-4. Epub 2009 Mar 17.
The aim of the study was to evaluate early osseointegration of the laser-treated and acid-etched implant surface after the installation in rabbit tibias for 4 weeks. A total of 56 screw-shaped implants were grouped as follows: group A: implants were turned surface; group B: implants were laser-treated surface; group C: implants were acid-etched; group D: Implants were laser-treated and acid-etched surface. After 4 weeks, the removal torques were: group A: 13.21 +/- 11.30 Ncm; group B: 29.73 +/- 8.32 Ncm; group C: 30.31 +/- 9.45 Ncm; group D: 35.76 +/- 7.58 Ncm; The averages of bone-to-implant contact (BIC) were as follows: group A: 27.30 +/- 6.55%; group B: 38.00 +/- 8.56%; group C: 42.71 +/- 8.48%; group D: 49.71 +/- 9.21%. The removal torque and bone-to-implant contact measurements yielded statistically significant differences between the treated groups and turned group (P < 0.05); The laser-treated and acid-etched surface achieved higher Bone-to-Implant Contact than the laser-treated surface (P < 0.05), but there was no statistically significant difference between the laser-treated and acid-etched surface and the acid-etched surface in bone-to-implant contact (P > 0.05). In the present study, it was concluded that the laser-treated and acid-etched implants had good osteoconductivity and was a potential material for dental implantation.
本研究的目的是评估激光处理和酸蚀处理后的种植体表面在植入兔胫骨4周后的早期骨整合情况。总共56枚螺旋形种植体被分为以下几组：A组：种植体为车削表面；B组：种植体为激光处理表面；C组：种植体为酸蚀处理；D组：种植体为激光处理和酸蚀处理表面。4周后，去除扭矩分别为：A组：13.21±11.30 Ncm；B组：29.73±8.32 Ncm；C组：30.31±9.45 Ncm；D组：35.76±7.58 Ncm；骨与种植体接触（BIC）的平均值如下：A组：27.30±6.55%；B组：38.00±8.56%；C组：42.71±8.48%；D组：49.71±9.21%。去除扭矩和骨与种植体接触的测量结果显示，处理组与车削组之间存在统计学显著差异（P<0.05）；激光处理和酸蚀处理表面的骨与种植体接触率高于激光处理表面（P<0.05），但激光处理和酸蚀处理表面与酸蚀处理表面在骨与种植体接触方面无统计学显著差异（P>0.05）。在本研究中，得出的结论是，激光处理和酸蚀处理的种植体具有良好的骨传导性，是一种潜在的牙种植材料。
