Orthodontics and Dentofacial Orthopedics, Field of Oral and Maxillofacial Growth and Development, Course of Clinical Science, The Nippon Dental University Graduate School of Life Dentistry at Niigata.
Orthodontic Dentistry, The Nippon Dental University Niigata Hospital.
Dent Mater J. 2021 Mar 31;40(2):439-445. doi: 10.4012/dmj.2020-113. Epub 2020 Nov 11.
The aim of this study was to assess the effects of three adhesives with different viscosities and an adhesion promoter on the shear bond strength (SBS) of orthodontic brackets bonded to human premolars with an indirect bonding system (IDBS). High, medium and low viscosity IDBSs with and without application of the adhesion promoter were used. The mean SBSs of the high and low viscosity IDBSs were significantly higher than that of the medium viscosity IDBS. Application of the adhesion promoter significantly increased the SBSs. The adhesion promoter significantly increased the surface roughness and free-energy of enamel. Irrespective of application or nonapplication of the adhesion promoter, the high and low viscosity IDBSs are effective for bracket bonding. Use of the medium viscosity IDBS in combination with the adhesion promoter is recommended for obtaining a clinically acceptable SBS.
本研究旨在评估三种不同粘度的黏结剂和一种黏结促进剂对应用间接黏结系统（IDBS）于人前磨牙的正畸托槽的剪切粘结强度（SBS）的影响。使用了具有和不具有黏结促进剂的高、中、低粘度 IDBS。高粘度和低粘度 IDBS 的平均 SBS 明显高于中粘度 IDBS。应用黏结促进剂显著增加了 SBS。黏结促进剂显著增加了釉质的表面粗糙度和自由能。无论是否应用黏结促进剂，高粘度和低粘度 IDBS 均对托槽粘结有效。建议使用中粘度 IDBS 结合黏结促进剂以获得临床可接受的 SBS。
