IN-VIVO TENSILE TESTING OF FLUORAPATITE AND HYDROXYLAPATITE PLASMA-SPRAYED COATINGS
IN-VIVO TENSILE TESTING OF FLUORAPATITE AND HYDROXYLAPATITE PLASMA-SPRAYED COATINGS
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DOI：
10.1002/jbm.820280506
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发表时间：
1994-05-01
期刊：
影响因子：
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通讯作者：
DEGROOT, K
中科院分区：
文献类型：
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作者：
KANGASNIEMI, IMO;VERHEYEN, CCPM;DEGROOT, K
已经开发出拉伸测试来测试生物活性涂层材料。使用喷砂钛 (Ti) 作为对照材料，测试了具有各种粗糙度的羟基磷灰石 (HA) 和氟磷灰石 (FA) 涂层。 12 只山羊每只接受 7 个植入物，植入周期为 6（2 只山羊）、12（5）周和 24（4）周。 12 周后，抛光羟基磷灰石 (HAP) 的平均拉伸强度值最高，其次是 HA > FAP（抛光氟磷灰石）> FA > Ti，并且发现羟基磷灰石类型涂层的值明显高于氟磷灰石类型涂层或钛植入物。 24 周后，任何种植体类型之间均未发现统计学上的显着差异。平均强度值的顺序现在是 HAP > HA > FA > FAP > Ti。如果已经建立骨接触，则断裂总是发生在涂层和钛之间。总之，建议不能使用不同类型的测试方法的结果来比较不同类型的生物活性涂层。 (C) 1994 约翰威利父子公司
A tensile test has been developed to test bioactive coating materials. Hydroxylapatite (HA) and fluorapatite (FA) coatings with various roughnesses were tested using sandblasted titanium (Ti) as a control material. Twelve goats received 7 implants each for 6 (2 goats), 12 (5), and 24 (4) week implantation periods. After 12 weeks the mean tensile strength values were highest for polished hydroxylapatite (HAP) followed by HA > FAP (polished fluorapatite) > FA > Ti, and hydroxylapatite type coatings were found to exhibit significantly higher values than fluorapatite type coatings or titanium implants. After 24 weeks no statistically significant differences could be found between any of the implant types. The order of the mean strength values was now HAP > HA > FA > FAP > Ti. Fracture always occurred between the coating and titanium if bone contact had been established. In conclusion, it is suggested that results from different types of test methods cannot be used to compare different types of bioactive coatings. (C) 1994 John Wiley and Sons, Inc.