J Dent Res:磷酸钙微球可作为牙齿漂白剂的运输载体

2017-11-14 lishiting MedSci原创

现如今,活髓牙漂白在牙科美容中变得越发流行。然而,牙齿敏感和釉质脱矿是过氧化氢和过氧化脲漂白经常出现的副作用。这篇研究的目的是为了评估具有再矿化特性的磷酸钙微球在不影响漂白剂扩散的前提下是否可以作为一种添加剂,以及这种微球是否可以作为过氧化脲载体。

现如今,活髓牙漂白在牙科美容中变得越发流行。然而,牙齿敏感和釉质脱矿是过氧化氢和过氧化脲漂白经常出现的副作用。这篇研究的目的是为了评估具有再矿化特性的磷酸钙微球在不影响漂白剂扩散的前提下是否可以作为一种添加剂,以及这种微球是否可以作为过氧化脲载体。结果显示,这种再矿化材料可以增加漂白的安全性并减少副作用的严重程度。然而,此项过氧化氢扩散实验与之前刊出的研究之间的非常难以进行比较,原因是很多研究缺乏可重复的条件或者不具备重要的参数。因此,Wu实验室(School of Dentistry, University of California, Los Angeles)设计了一个扩散模型来检测扩散流并确定过氧化氢的扩散率。物理参数(如:扩散率)可以用来直接比较将来实验所得的研究结果。研究制作了3种添加一定量微球的美白凝胶,并与2种商业化的美白凝胶做对比。在稳态条件下通过1-mm牛牙釉质盘片检测过氧化氢流并计算扩散率。结果显示,微球可以作为过氧化脲载体,并且微球含量并不影响过氧化物通过釉质片的扩散率。结论:可以考虑将微球做为漂白凝胶成分中减少副作用的一种添加物。原始出处:Mellgren T,

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    2018-08-09 mei539
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  3. [GetPortalCommentsPageByObjectIdResponse(id=1645442, encodeId=8db71645442e4, content=<a href='/topic/show?id=db329364360' target=_blank style='color:#2F92EE;'>#载体#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93643, encryptionId=db329364360, topicName=载体)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=58cb23213384, createdName=mei539, createdTime=Thu Aug 09 16:03:00 CST 2018, time=2018-08-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430104, encodeId=7b25143010433, content=<a href='/topic/show?id=b58f6e691fc' target=_blank style='color:#2F92EE;'>#牙齿#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67691, encryptionId=b58f6e691fc, topicName=牙齿)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智慧医人, createdTime=Thu Nov 16 12:03:00 CST 2017, time=2017-11-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=261577, encodeId=55502615e7a5, content=不错的文章值得推荐一下, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Wed Nov 15 23:31:23 CST 2017, time=2017-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=261329, encodeId=a2d5261329ac, content=非常好的文章.学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Tue Nov 14 22:21:37 CST 2017, time=2017-11-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=261316, encodeId=d96f2613163f, content=很好的文章.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Tue Nov 14 21:13:13 CST 2017, time=2017-11-14, status=1, ipAttribution=)]
    2017-11-15 131****2916

    不错的文章值得推荐一下

    0

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    2017-11-14 天涯183

    非常好的文章.学习了

    0

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    2017-11-14 清风拂面

    很好的文章.谢谢分享

    0

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