Vicente Ascensión, Bravo Luis A, Romero Martín, Ortíz Antonio J, Canteras Manuel
Docent Unit of Orthodontics, Dental Clinic, University of Murcia, Hospital Morales Meseguer, 2a planta, Murcia, Spain.
Am J Dent. 2005 Aug;18(4):256-60.
To evaluate the effectiveness of two self-etching primers for bonding brackets in comparison with the conventional acid-etch technique.
The brackets were bonded to extracted human premolars using the resin orthodontic adhesive system, Transbond XT. This procedure was carried out in accordance with one of the following three protocols of enamel conditioning: (1) 37% phosphoric acid etching, (2) Transbond Plus Self Etching Primer (TSEP), and (3) Adper Prompt L-Pop (Adper PLP). Shear bond strength was measured with a universal test machine. The adhesive remnant on the tooth after debonding was quantified using image analysis equipment. Scanning electron microscopy (SEM) was used to observe the effects of conditioning of each product on the enamel.
No significant differences were observed in bond strengths of the three groups evaluated (P> 0.05). Self-etching primers left significantly less adhesive on the tooth than the conventional acid-etch technique and, among them, Adper PLP left significantly less adhesive than TSEP (P< 0.017). SEM observations showed that the etching effect of self-etching primers approximated to the etching effect of phosphoric acid.
与传统酸蚀技术相比，评估两种自酸蚀底漆用于粘结托槽的有效性。
使用树脂正畸粘结系统Transbond XT将托槽粘结到拔除的人类前磨牙上。该操作按照以下三种釉质预处理方案之一进行：（1）37%磷酸酸蚀，（2）Transbond Plus自酸蚀底漆（TSEP），以及（3）Adper Prompt L-Pop（Adper PLP）。使用万能试验机测量剪切粘结强度。使用图像分析设备对脱粘后牙齿上的粘结残余物进行定量分析。使用扫描电子显微镜（SEM）观察每种产品对釉质的预处理效果。
在评估的三组粘结强度中未观察到显著差异（P>0.05）。与传统酸蚀技术相比，自酸蚀底漆在牙齿上留下的粘结剂显著更少，并且在它们之中，Adper PLP留下的粘结剂比TSEP显著更少（P<0.017）。SEM观察表明，自酸蚀底漆的酸蚀效果接近磷酸的酸蚀效果。
