封闭牙本质小管能有效减轻牙齿过敏症。本研究以不同粒径的微纳米生物活性玻璃球(MNBGs)为分散质、海藻酸钠–磷酸盐缓冲溶液为分散液,制备了用于牙本质脱敏治疗的MNBGs糊剂(MNBGP)。在牙本质切片表面进行体外矿化并系统评价了糊剂与牙...封闭牙本质小管能有效减轻牙齿过敏症。本研究以不同粒径的微纳米生物活性玻璃球(MNBGs)为分散质、海藻酸钠–磷酸盐缓冲溶液为分散液,制备了用于牙本质脱敏治疗的MNBGs糊剂(MNBGP)。在牙本质切片表面进行体外矿化并系统评价了糊剂与牙本质的结合性能,以及糊剂体外诱导牙本质再矿化、封闭牙本质小管的能力。研究结果表明,不同粒径MNBGs制备的糊剂均能与牙本质界面紧密结合,粒径较小的MNBGs在脱矿牙本质切片表面分布更加均匀。MNBGP在人工唾液(AS)中能较好地诱导牙本质再矿化形成磷灰石(HA)以堵塞封闭牙本质小管,脱矿牙本质切片表面形成的HA层随矿化时间延长而增厚,矿化28 d HA层的厚度可达到5~10μm。MNBGs的尺寸影响其诱导牙本质再矿化的效果,当颗粒大小与牙本质小管直径匹配时,MNBGs可以更好地封闭牙本质小管。因此, MNBGP具有良好的治疗牙本质过敏的应用前景。展开更多
Bone protein extract is regarded as the new generation of demineralized bone matrix. The aim of this paper is to describe and characterize the properties of demineralized bone matrix and its new generation product in ...Bone protein extract is regarded as the new generation of demineralized bone matrix. The aim of this paper is to describe and characterize the properties of demineralized bone matrix and its new generation product in addition to its application in animal and human studies. Bone protein extract has features of osteoconductivity, osteoinductivity and osteogenicity, which originate from its unique and precise processing. It has exhibited powerful bone formation capacity both in animal experiments and in clinical trials by providing an optimal microenvironment for osteogenesis. Furthermore, not only does it have excellent bio- compatibility, it also has good compatibility with other implant materials, helping it bridge the host and implanted materials. Bone protein extract could be a promising alternative for demineralized bone matrix as a bone graft substitute.展开更多
文摘封闭牙本质小管能有效减轻牙齿过敏症。本研究以不同粒径的微纳米生物活性玻璃球(MNBGs)为分散质、海藻酸钠–磷酸盐缓冲溶液为分散液,制备了用于牙本质脱敏治疗的MNBGs糊剂(MNBGP)。在牙本质切片表面进行体外矿化并系统评价了糊剂与牙本质的结合性能,以及糊剂体外诱导牙本质再矿化、封闭牙本质小管的能力。研究结果表明,不同粒径MNBGs制备的糊剂均能与牙本质界面紧密结合,粒径较小的MNBGs在脱矿牙本质切片表面分布更加均匀。MNBGP在人工唾液(AS)中能较好地诱导牙本质再矿化形成磷灰石(HA)以堵塞封闭牙本质小管,脱矿牙本质切片表面形成的HA层随矿化时间延长而增厚,矿化28 d HA层的厚度可达到5~10μm。MNBGs的尺寸影响其诱导牙本质再矿化的效果,当颗粒大小与牙本质小管直径匹配时,MNBGs可以更好地封闭牙本质小管。因此, MNBGP具有良好的治疗牙本质过敏的应用前景。
基金supported by the National Basic Research Program of China (Grant No. 2012CB619105)the National Natural Science Foundation of China (Grant Nos. 30571892, 81071512 and u0732001)the Fabrikant Mads Clausens Foundation of Denmark
文摘Bone protein extract is regarded as the new generation of demineralized bone matrix. The aim of this paper is to describe and characterize the properties of demineralized bone matrix and its new generation product in addition to its application in animal and human studies. Bone protein extract has features of osteoconductivity, osteoinductivity and osteogenicity, which originate from its unique and precise processing. It has exhibited powerful bone formation capacity both in animal experiments and in clinical trials by providing an optimal microenvironment for osteogenesis. Furthermore, not only does it have excellent bio- compatibility, it also has good compatibility with other implant materials, helping it bridge the host and implanted materials. Bone protein extract could be a promising alternative for demineralized bone matrix as a bone graft substitute.
