A comparative study about bonding strength of customized metal base for lingual orthodontic appliance made by non-precious metal

• Published in: Oral Biology Research (OBR) Vol. 40; no. 4; pp. 187 - 192
• Main Authors: Hyeong-moon Kim, Bak-gyou Choi, Sung-hoon Lim, Sung-nam Gang
• Format: Journal Article
• Language: Korean
• Published: 조선대학교 치의학연구원 30.12.2016; 치의학연구원
• Subjects: Bonding strength; Chemical cure type bonding agent; Customized orthodontic appliance; Lingual bracket; Non-precious metal; 치의학
• ISSN: 2508-2558; 2508-2566
• DOI: 10.21851/obr.40.4.201612.187

Objective: The purpose of this study was to evaluate the maximum bonding strength of three different agents used to customize the metal base for lingual orthodontic appliance made using non-precious metal. Methods: 60 human premolar (Upper 30, Lower 30) specimens were randomly divided into 3 groups, based on the combination of three different bonding agents (No mix, Mix, Dual cure resin cement). After processing by direct bonding in accordance with each manufacturer`s instructions, all specimens underwent thermocycling. The maximum bonding strength was measured at the moment of metal base debonding. Results: Application of dual cure type resin cement (Unicem, 19.68±4.72 MPa) yielded a higher bond strength than the other two bonding agents (Reliance:11.56±3.94 MPa, and Premix:12.30±3.53 MPa). Conclusion: The dual cure type resin cement has a clinically satisfactory bond strength, which can be attained when customizing the metal base for lingual orthodontic appliance made with non-precious metals, using the direct bonding process.