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首页> 外文期刊>Journal of dentistry >Bonding of acid-etch and self-etch adhesives to human fluorosed dentine.
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Bonding of acid-etch and self-etch adhesives to human fluorosed dentine.

机译：酸蚀刻和自蚀刻粘合剂与人类氟化牙本质的粘合。

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OBJECTIVE: The objective of our laboratory study was to determine the bonding efficacy of two-step self-etching primer system (Clearfil SE Bond), all-in-one adhesive (Clearfil Tri S Bond) and acid-etching system (Single Bond) to human fluorosed dentine. METHODS: Forty-eight human molars were grouped according to modified Thylstrup-Fejerskov index (TFI) into normal (N, TFI 0), mild fluorosis (ML, TFI 1-3) and moderate fluorosis (MD, TFI 4-6). Superficial dentine was exposed and ground with 600-grit silicon carbide paper. Teeth of each group were randomly divided into three sub-groups. Each sub-group was treated with one of the three bonding systems. A resin composite was built up on the bonded surfaces and stored in water at 37 degrees C for 24h. They were serially sectioned in buccal-lingual direction into 0.7-1.0mm thick slabs. Slices were trimmed for microtensile bond test and stressed in tension at a crosshead speed of 1mm/min. The data were analyzed with two-way ANOVA (p=0.05). The adhesive/dentineinterfaces of the bonded specimens were examined by a FE-SEM. RESULTS: Significantly higher microtensile bond strength (muTBS) was found with Clearfil SE Bond to mild fluorosed dentine than did Single Bond and Clearfil Tri S Bond. Lower muTBS were found for Single Bond (not significant) and Clearfil Tri S Bond than Clearfil SE Bond with moderately fluorosed dentine. Thickness of the hybrid layer produced by Clearfil SE Bond in mild and moderately fluorosed groups was less than with normal dentine. CONCLUSION: Two-step self-etching system, Clearfil SE Bond, showed a higher bonding performance to fluorosed dentine than Single Bond and Tri S Bond.
机译：目的：我们实验室研究的目的是确定两步自蚀底漆体系（Clearfil SE Bond），多合一粘合剂（Clearfil Tri S Bond）和酸蚀体系（Single Bond）的粘合效果。对人类的含氟牙本质。方法：根据改良的Thylstrup-Fejerskov指数（TFI）将48个人类磨​​牙分为正常（N，TFI 0），轻度氟中毒（ML，TFI 1-3）和中度氟中毒（MD，TFI 4-6）。暴露表面的牙本质并用600粒度的碳化硅纸研磨。每组的牙齿被随机分为三个亚组。每个子组都使用三种结合系统之一进行处理。将树脂复合材料堆积在粘合的表面上，并在37摄氏度的水中储存24小时。将它们沿颊舌方向连续切成0.7-1.0mm厚的平板。修整切片以进行微拉伸粘合测试，并以1mm / min的十字头速度拉伸应力。用双向ANOVA分析数据（p ＝ 0.05）。通过FE-SEM检查粘合样品的粘合剂/牙本质界面。结果：与单键和Clearfil Tri S键相比，Clearfil SE键与轻度氟代牙本质键的微拉伸键强度（muTBS）明显更高。发现单键（无显着性）和Clearfil Tri S键的muTBS低于具有中等氟化牙本质的Clearfil SE键。 Clearfil SE Bond在轻度和中度氟化基团中产生的杂化层的厚度小于正常牙本质。结论：两步自蚀刻系统Clearfil SE Bond与氟代牙本质的粘合性能比Single Bond和Tri S Bond高。

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