CAJ | 학술논문

目的：探讨不同制备条件对EH复合型骨水泥抗弯强度的影响。方法分别选择EH复合型骨水泥的不同粉/液比、不锈钢模具内充填后使用/未使用冲压器固定、试样加热/不加热3种不同条件制备试样，随后进行抗弯强度测试。结果不同的粉/液比中，6/4和10/7两组间的抗弯强度差异无统计学意义（P=0.05），其余组别之间有显著差异（P<0.05）；使用/未使用冲压器试样（粉/液比：10/7）两组抗弯强度值之间有显著性差异（P<0.05）；使用/未使用热处理试样（粉/液比10/7,使用冲压器）抗弯强度,两组数据间没有显著性差异（P>0.05）。结论当粉/液比为10/7、且使用冲压器固定条件下制备的EH复合型骨水泥试样，其抗弯强度可达到最大；对试样进行热处理，抗弯强度的变化不显著。
목적：탐토불동제비조건대EH복합형골수니항만강도적영향。방법분별선택EH복합형골수니적불동분/액비、불수강모구내충전후사용/미사용충압기고정、시양가열/불가열3충불동조건제비시양，수후진행항만강도측시。결과불동적분/액비중，6/4화10/7량조간적항만강도차이무통계학의의（P=0.05），기여조별지간유현저차이（P<0.05）；사용/미사용충압기시양（분/액비：10/7）량조항만강도치지간유현저성차이（P<0.05）；사용/미사용열처리시양（분/액비10/7,사용충압기）항만강도,량조수거간몰유현저성차이（P>0.05）。결론당분/액비위10/7、차사용충압기고정조건하제비적EH복합형골수니시양，기항만강도가체도최대；대시양진행열처리，항만강도적변화불현저。
Objective To evaluate the effect of different preparation condition on the bending strength of EH composite bone cement. Method Three kinds of methods were used to prepare the EH composite bone cement:1) the samples were made by different ratio of powder/liquid;2) the samples were filled into the stainless steel mould and then fixed with/without the punch device;3) the samples were heated/not heated. And then, the bending strength of all samples were measured. Result In the case of different Powder/Liquid ratio, there was no statistically significant difference (P=0.05) in the bending strength between the 6/4 group and 10/7 group, while there were obvious differences (P<0.05) among other groups. In the case of punch device (powder/liquid ratio:10:7), there was significant difference (P<0.05) in bending strength between the samples prepared with/without punch machine. Moreover, there was no obvious difference (P>0.05) in bending strength between the sample with/without heat-treatment. Conclusion When the ratio of Powder/liquid agent was 10/7 and punch machine was used to fix the metallic mould, the EH composite bone cement had the best effect on the bending strength. More-over, heat-treatment had no obvious change on bending strength.