首页> 外文会议>13th International Symposium on Ceramics in Medicine and the Annual Meeting of the International Society for Ceramics in Medicine 22-26 November 2000 Bologna, Italy >Evaluation of BONIT~circleR, a fully Resorbable CaP Coating Obtained by Electrochemical Deposition, after 6 Weeks of Healing: A Pilot study in the Pig Maxilla
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Evaluation of BONIT~circleR, a fully Resorbable CaP Coating Obtained by Electrochemical Deposition, after 6 Weeks of Healing: A Pilot study in the Pig Maxilla

机译:愈合6周后,通过电化学沉积获得的可完全吸收的CaP涂层BONIT〜circleR的评估:猪上颌骨的一项初步研究

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The present pilot study reports on the evaluation of BONIT, a fully resorbable CaP coating obtained by electrochemical deposition, in a pig model in the maxilla. Control implants were PHI 4.9 mm x 8 mm titanium plasma-sprayed (TPS) and test implants were further coated by a 15-20 mum thick BONIT layer. The coating was found to be mainly Brushite (CaHPO_4.2H_2O), its Ca/P was 1.1+-0.1. By 6 weeks of healing, all implants osseointegrated. Bone apposition at the test and control groups was respectively 73.0+-6.2 percent and 49.8 +- 16.4 percent (p = 0.009). The bioactive coating induced a pronounced osteoconductive effect with remarkable new bone apposition in the spongious bone between the implant threads. The coating was resorbed by > 99percent and was substituted by bone. Macrophagic or osteoclastic activity was not found at the interface whereas it has been reported for resorbing plasma-sprayed CaP coatings. The results suggest that fully resorbable CaP coatings might be able to replace plasma-sprayed HA coatings as the second generation of bioactive coatings.
机译:本试验研究报告了在上颌骨的猪模型中对BONIT的评估,BONIT是通过电化学沉积获得的完全可吸收的CaP涂层。对照植入物为PHI 4.9毫米x 8毫米钛等离子体喷涂(TPS),测试植入物进一步用15-20微米厚的BONIT涂层涂覆。发现该涂层主要是透钙磷石(CaHPO_4.2H_2O),其Ca / P为1.1 + -0.1。经过6周的愈合,所有植入物都骨整合。测试组和对照组的骨并置分别为73.0±6.2%和49.8±16.4%(p = 0.009)。具有生物活性的涂层在植入物螺纹之间的海绵状骨中具有明显的新骨并置,从而引起明显的骨传导作用。涂层被> 99%的吸收,并被骨头替代。在界面处未发现巨噬细胞或破骨细胞活性,而据报道可吸收等离子喷涂的CaP涂层。结果表明,完全可吸收的CaP涂层可能能够取代等离子喷涂的HA涂层,成为第二代生物活性涂层。

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