中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (47): 7638-7642.doi: 10.3969/j.issn.2095-4344.2014.47.017

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

Varnish XT和ICON渗透树脂对釉质龋白斑微硬度的影响

郭  静1,2,赵晓一3,吴佩玲1   

  1. 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
    2新疆乌鲁木齐市口腔医院牙体牙髓一科,新疆维吾尔自治区乌鲁木齐市  830002
    3北京大学口腔医院,北京市  100081
  • 修回日期:2014-10-22 出版日期:2014-11-19 发布日期:2014-11-19
  • 通讯作者: 吴佩玲,主任医师,教授,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:郭静,女,1982年生,新疆维吾尔自治区人,汉族,新疆医科大学在读硕士。
  • 基金资助:

    新疆维吾尔自治区卫生厅青年科技人才专项科研资金项目(2013Y07)

Effect of Varnish XT and ICON resin infiltration treatment on the microhardness of white spot lesions

Guo Jing1, 2, Zhao Xiao-yi3, Wu Pei-ling1   

  1. 1Department of Stomatology, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
    2Department of Endodontics, Urumqi Stomatological Hospital, Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
    3Hospital of Stomatology, Peking University, Beijing 100081, China
  • Revised:2014-10-22 Online:2014-11-19 Published:2014-11-19
  • Contact: Wu Pei-ling, Chief physician, Professor, Department of Stomatology, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • About author:Guo Jing, Studying for master’s degree, Department of Stomatology, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China; Department of Endodontics, Urumqi Stomatological Hospital, Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Special Research Fund for Young Scientific Talents of the Health Bureau of Xinjiang Uygur Autonomous Region, No. 2013Y07

摘要:

背景:早期龋的治疗方法中,可以采用氟化物对龋白斑进行再矿化处理。长效释氟玻璃离子保护膜(Varnish XT)和ICON渗透树脂是两种新型的材料,Varnish XT是一种新型的树脂加强型玻璃离子,可以作为再矿化材料的新选择。ICON渗透树脂是一种流动性较好的高渗透系数树脂,借助毛细作用渗入到脱矿釉质的微孔中,利用低黏性的渗透树脂取代由于脱矿而丧失的硬组织并占据微孔的空间,填补釉质脱矿区并阻止病损的进一步发展。
目的:观察Varnish XT和ICON渗透树脂两种微创治疗材料对釉质龋白斑微硬度的影响。
方法:选择牛门齿100颗,将唇面向下作为观察面,环氧树脂包埋,打磨。暴露至少6 mm×10 mm的釉质牙面,由切端至颈部依次分A,B,C,D,E 5个区,E区用抗酸指甲油封闭。分别采用人工龋脱矿液后,A区不做处理,B区经Varnish XT处理,C区经ICON渗透树脂处理,D区经氟化物处理后,用韦氏硬度仪测量表面显微硬度值。
结果与结论:脱矿样本经处理后A,B,C,D区的表面显微硬度值较E区均明显降低(P < 0.05), B,C,D区样本表面显微硬度值均较A区升高,且表面显微硬度值C区>B区、D区(P < 0.05);B区的表面显微硬度值与D区相比,差异无显著性意义(P > 0.05)。说明ICON渗透树脂、Varnish XT和氟化物对龋白斑的微硬度都有明显的改善,ICON渗透树脂的改善较Varnish XT和氟化物明显,Varnish XT和氟化物之间无明显差异。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 口腔生物材料, 龋白斑, 树脂加强型玻璃离子, 渗透树脂, 显微硬度, 牛牙, 釉质, 脱矿, 氟化物, 再矿化, 人工唾液

Abstract:

BACKGROUND: In the treatment of early caries, fluoride can be used for remineralization of white spot lesions. Varnish XT (durable fluoride-releasing coating) and ICON penetration resins are two new materials. Varnish XT as a new type of resin reinforced glass ionomer can be selected as mineralized material. ICON penetration resin is a high-permeability resin with good liquidity that can infiltrate by capillary action into the pores created by enamel demineralization. Low-viscosity resin is used to replace the lost hard tissue due to demineralization and occupy the micropores, so as to fill the region of enamel demineralization and prevent further development of lesions.
OBJECTIVE: To study the effects of two minimally invasive surgical treatment materials, Varnish XT and ICON penetrating resin, on the microhardness of enamel caries white spot.
METHODS: Totally 100 incisors of cows were selected, embedded with ethoxyline resin and polished. The lip side facing down served as the observation side. An area of at least 6 mm×10 mm on the enamel face was exposed, and there were five regions from incisal to dental cervix, A, B, C, D, E. After demineralization liquid for artificial caries, no treatment was adopted in region A, treatment with Varnish XT was for region B, treatment with ICON penetrating resin for region C, treatment with fluoride for region D, and region E was sealed with antacid nail. Surface micro-hardness was detected.
RESULTS AND CONCLUSION: After demineralization, surface micro-hardness of regions A, B, C, D decreases remarkably as compared with region E (P < 0.05). Surface micro-hardness of regions B, C, D was higher than that of region A, and ranged as follows: C > B and D for surface micro-hardness with statistical significance (P < 0.05). There was no statistical significance of surface micro-hardness between regions B and D (P > 0.05). ICON resin infiltration, Varnish XT and fluoride have obvious improvement effects on surface micro-hardness, and ICON resin infiltration is superior to Varnish XT and fluoride.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: dental enamel, dental caries, hardness, osmosis

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