中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (3): 377-381.doi: 10.3969/j.issn.2095-4344.2016.03.013

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

酪蛋白磷酸多肽/无定形磷酸钙复合物与氟化钠预防正畸托槽周围的牙釉质脱矿

骆 慧,贾德蛟,刘海霞,范雅儒,赵浩然   

  1. 新疆医科大学第二附属医院口腔科,新疆维吾尔自治区乌鲁木齐市 830063
  • 收稿日期:2015-10-26 出版日期:2016-01-15 发布日期:2016-01-15
  • 通讯作者: 刘海霞,新疆医科大学第二附属医院口腔科,新疆维吾尔自治区乌鲁木齐市 830063
  • 作者简介:骆慧,女,1988年生,在读硕士,主要从事口腔正畸学研究。

Casein phosphopeptides/amorphous calcium phosphate compound and fluoride prevent enamel demineralization around orthodontic brackets

Luo Hui, Jia De-jiao, Liu Hai-xia, Fan Ya-ru, Zhao Hao-ran   

  1. Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • Received:2015-10-26 Online:2016-01-15 Published:2016-01-15
  • Contact: Liu Hai-xia, Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • About author:Luo Hui, Studying for master’s degree, Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China

摘要:

文章快速阅读:

 

文题释义:
托槽:是固定矫治技术的重要部件,用粘接剂直接粘接于牙冠表面,弓丝通过托槽而对牙施以各种类型的矫治力。托槽由不锈钢、生物陶瓷或复合树脂制成,其主要作用在于固定弓丝,从而使弓丝更好的发挥作用,传递矫治力,以此控制牙齿的三维移动,达到正畸矫治的目的。
脱钙:指人牙齿牙釉质表面的钙磷脱落,因而使牙齿色泽改变,呈白色或微黄的斑点,影响美观。更严重的,牙釉质脱落,牙齿上有明显的浅凹陷或细沟。再矿化是指唾液中的钙磷等沉积到牙面上,在正常人牙的脱矿与再矿化是一个平衡的过程。严重的脱矿,可以通过内科或修复的手段治疗。

 

背景:临床上,酪蛋白磷酸多肽/无定形磷酸钙复合物与氟化钠均能有效防止釉质脱矿发生和龋坏出现。
目的:观察酪蛋白磷酸多肽/无定形磷酸钙复合物与氟化钠在固定正畸矫治过程中对牙釉质脱矿的预防作用,寻求效果好的再矿化试剂。
方法:将40颗已粘接好托槽的人离体牙随机分为4组,对照组表面不涂布任何物质,护牙素组表面涂布酪蛋白磷酸多肽/无定形磷酸钙复合物,多乐氟组表面涂布氟化钠,联合组表面同时涂布酪蛋白磷酸多肽/无定形磷酸钙复合物与氟化钠。将4组牙齿进行连续14 d的脱矿-再矿化实验,实验结束后扫描电镜观察牙釉质表面孔隙情况,同时测量各组实验前后的显微硬度变化值。
结果与结论:对照组出现明显牙釉质脱矿现象,其他3组牙釉质脱矿现象不明显。护牙素组、多乐氟组、联合组的显微硬度变化值均低于对照组(P < 0.05),护牙素组、多乐氟组、联合组间显微硬度变化值比较差异无显著性意义。说明氟化钠、酪蛋白磷酸多肽/无定形磷酸钙复合物及两者同时使用在体外实验中均可防止牙釉质脱矿,促进再矿化,但两者联用并未明显提高预防牙釉质脱矿作用。 

 ORCID: 0000-0002-5594-0863(刘海霞)

关键词: 生物材料, 口腔生物材料, 多乐氟, 护牙素, 牙釉质, 脱矿, 再矿化

Abstract:

BACKGROUND: In clinical practice, both casein phosphopeptides/amorphous calcium phosphate compound and fluoride can effectively prevent the occurrence of enamel demineralization and caries.
OBJECTIVE: To investigate the preventive effects of casein phosphopeptides/amorphous calcium phosphate compound and fluoride on enamel demineralization in the orthodontic treatment, so as to seek a remineralization agent with good effect.
METHODS: Totally 40 human in vitro teeth which had been well bonded to brackets were randomly divided into four groups: control group (the surface was not coated with any substance), GC tooth mousse group (the surface was coated with casein phosphopeptides/amorphous calcium phosphate compound), duraphat group (the surface was coated with fluoride) and combined group (the surface was coated with casein phosphopeptides /amorphous calcium phosphate compound and fluoride). The enamel surface porosity was observed by scanning electron microscopy after the successive 14-day demineralization-remineralization experiments in these four groups. The change value of microhardness was measured before and after the experiment in each group.
RESULTS AND CONCLUSION: There was obvious enamel demineralization in the control group, but not in the other three groups. The change value of microhardness in GC tooth mousse, duraphat and combined groups was lower than that in the control group (P < 0.05), and there was no significant difference between GC tooth mousse, duraphat and combined groups. These results demonstrate that fluoride, casein phosphopeptides/amorphous calcium phosphate compound and their combination can prevent enamel demineralization, promote remineralization; however, their combination does not improve the effect of preventing enamel demineralization.