Bulut Hakan, Türkün Murat, Türkün L Sebnem, Işiksal Erdal
Department of Orthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey.
Am J Orthod Dentofacial Orthop. 2007 Jul;132(1):77-83. doi: 10.1016/j.ajodo.2005.06.040.
The purpose of this in-vitro study was to investigate the shear/peel bond strength of metal brackets bonded to human enamel with differently cured bonded systems combined with an antibacterial adhesive component.
One hundred twenty extracted molars were divided into 3 groups. Stainless steel brackets were bonded with 1 of 3 systems: group 1, no-mix bonding adhesive (Unite, 3M Unitek, Monrovia, Calif) (n = 40); group 2, 2-paste chemically cured bonding resin (Concise, 3M Unitek) (n = 40); and group 3, light-cured adhesive (Transbond XT, 3M Unitek) (n = 40). Each bonding group was separated into experimental (n = 20) and control groups (n = 20). In the 3 experimental groups, an antibacterial self-etch adhesive (Clearfil Protect Bond, Kurary, Osaka, Japan) was also applied to the enamel. Specimens in the control groups were bonded only with their relevant bonding systems according to the manufacturers' instructions. All specimens were stored in distilled water for 24 hours and thermocycled before testing. Debonded specimens were scored with the adhesive remnant index.
The mean bond strengths (in megapascals) were 9.8 (control, 15.7) in group 1, 12.0 (control, 18.5) in group 2, and 11.6 (control, 12.4) in group 3. Statistical analysis with t tests showed no difference between group 3 and its control (P = .178), whereas groups 1 and 2 were statistically different from their controls (P = .000).
The results indicated that the newly developed antibacterial self-etch adhesive can be combined with various bonding systems; achieved bond strengths were clinically more than satisfactory.
本体外研究的目的是调查使用不同固化粘结系统并结合抗菌粘结成分时，金属托槽与人类牙釉质之间的剪切/剥离粘结强度。
120颗拔除的磨牙被分为3组。用3种系统之一粘结不锈钢托槽：第1组，免混合粘结剂（Unite，3M Unitek，蒙罗维亚，加利福尼亚）（n = 40）；第2组，双糊剂化学固化粘结树脂（Concise，3M Unitek）（n = 40）；第3组，光固化粘结剂（Transbond XT，3M Unitek）（n = 40）。每个粘结组又分为实验组（n = 20）和对照组（n = 20）。在3个实验组中，还将一种抗菌自酸蚀粘结剂（Clearfil Protect Bond，可乐丽，大阪，日本）应用于牙釉质。对照组的标本仅根据制造商的说明用其相应的粘结系统进行粘结。所有标本在测试前在蒸馏水中储存24小时并进行热循环处理。用粘结剂残留指数对脱粘的标本进行评分。
第1组的平均粘结强度（以兆帕计）为9.8（对照组为15.7），第2组为12.0（对照组为18.5），第3组为11.6（对照组为12.4）。t检验的统计分析表明第3组与其对照组之间无差异（P = 0.178），而第1组和第2组与其对照组在统计学上有差异（P = 0.000）。
结果表明，新开发的抗菌自酸蚀粘结剂可与各种粘结系统结合使用；所达到的粘结强度在临床上是令人满意的。
