COMPARISON IN SHEAR BOND STRENGTH OF ORTHODONTIC BRACKETS BETWEEN 5 BONDING SYSTEMS RELATED TO DIFFERENT ETCHING TIMES - AN INVITRO STUDY
COMPARISON IN SHEAR BOND STRENGTH OF ORTHODONTIC BRACKETS BETWEEN 5 BONDING SYSTEMS RELATED TO DIFFERENT ETCHING TIMES - AN INVITRO STUDY
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DOI：
10.1016/0889-5406(92)70114-p
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发表时间：
1992-05-01
影响因子：
3
通讯作者：
MOORS, M
中科院分区：
文献类型：
--
作者：
SURMONT, P;DERMAUT, L;MOORS, M
新的粘合剂不断上市。托槽粘接是正畸粘接中最薄弱的环节。本文介绍了一种新型的正畸托槽剪切粘结强度测定装置。使用该器械，评价了五种商业产品的SBS：Lee Bond（LB）、Concise（C）、Super C（SC）、无混合型（ANM）和Panavia Ex（PE）。在将Begg支架的层压minimesh应用于下人类切牙后，对样本进行热循环。所研究的产品产生高的粘结强度。测试的产品显示剪切粘结强度显著低于PE染色的产品。PE的应用产生了最高的剪切值。然而，该产品的某些特征可能在临床上有些不便。粘结剂应用前牙釉质酸蚀15秒和60秒之间的剪切粘结强度没有显著差异。
New adhesives are continuously being marketed. The adhesive-bracket bond is still the weakest point in orthodontic bonding. A new device for the measurement of shear bond strength values (SBS) of orthodontic brackets is presented in this article. With this device, five commercial products were evaluated for their SBS: Lee Bond (LB), Concise (C), Super C (SC), Achieve-no-mix (ANM), and Panavia Ex (PE). After applying Begg brackets of laminated minimesh on lower human incisors, the specimens were thermocycled. The products investigated produced high bond strengths. The products tested showed shear bond strengths that were significantly lower than those stained with PE. The application of PE yielded the highest shear values. Nevertheless, some characteristics of this product might be clinically somewhat inconvenient. There was no significant difference in shear bond strength between 15 and 60 seconds enamel etching before bond application.