Sorake Abhinay, Jayakrishnan Unnikrishnan, Suneja Ridhima, Sam Subin, Abraham Terrance, Jayaraj Anjali, Govind Sivasuthan L
Department of Orthodontics and Dentofacial Orthopedics, AJ Institute of Dental Sciences, Rajiv Gandhi University of Health Sciences, Mangaluru, Karnataka, India.
Department of Orthodontics and Dentofacial Orthopedics, AJ Institute of Dental Sciences, Rajiv Gandhi University of Health Sciences, Mangaluru, Karnataka, India, e-mail: jayakrisjk@ gmail.com.
J Contemp Dent Pract. 2019 Feb 1;20(2):166-172.
To evaluate the shear bond strength of orthodontic lingual bracket systems bonded to extracted premolar teeth (Reliance self-etching primer, Clearfil Protect Bond) and self-etching primer (Clearfil SE Bond) Materials and methods: A total of 160 extracted human first premolars were selected and divided into four groups of 10 for each bracket system to be used with four different primers. Each sample was then embedded in an acrylic block, till the coronal portion. Instron testing machine model LR LOYD 50 K was used for testing the shear bond strength.
The results obtained, suggested that all the primers had clinically acceptable shear bond strength with all the bracket system considered in the study. However, there were statistically significant differences in the shear bond strength in intergroup comparisons.
The Reliance Self-Etching primer showed the highest bond strength with Alias lingual bracket system by Ormco, followed by clearfil protect bond, clearfil SE bond, and transbond, with the Alias lingual bracket system in the same order.
This study was initiated to understand the shear bond strength of self-etching primer and its efficacy over the conventional primer, which will be of use to the clinician while selecting the primer for bonding of the bracket systems and overcome debonding of brackets encountered during the treatment progress.
评估粘结于拔除前磨牙上的正畸舌侧托槽系统（信赖自酸蚀底漆、可乐丽菲露保护粘结剂）和自酸蚀底漆（可乐丽SE粘结剂）的剪切粘结强度。材料与方法：共选取160颗拔除的人类第一前磨牙，分为四组，每组10颗，每种托槽系统与四种不同底漆配合使用。然后将每个样本嵌入丙烯酸块中，直至冠部。使用英斯特朗LR LOYD 50K测试机测试剪切粘结强度。
所得结果表明，在本研究中考虑的所有托槽系统中，所有底漆均具有临床可接受的剪切粘结强度。然而，组间比较的剪切粘结强度存在统计学显著差异。
信赖自酸蚀底漆与奥美科Alias舌侧托槽系统的粘结强度最高，其次是可乐丽菲露保护粘结剂、可乐丽SE粘结剂和Transbond，与Alias舌侧托槽系统的顺序相同。
开展本研究是为了了解自酸蚀底漆的剪切粘结强度及其相对于传统底漆的效果，这将有助于临床医生在选择用于粘结托槽系统的底漆时，并克服治疗过程中遇到的托槽脱粘问题。
