Shear Bond Strength of Polypropylene Fiber in Orthodontic Adhesive on Glazed Monolithic Zirconia

Dhanabhol Riowruangsanggoon; Apiwat Riddhabhaya; Nattisa Niyomtham; Irin Sirisoontorn

doi:10.3390/polym14214627

Shear Bond Strength of Polypropylene Fiber in Orthodontic Adhesive on Glazed Monolithic Zirconia

Polymers (Basel). 2022 Oct 31;14(21):4627. doi: 10.3390/polym14214627.

Authors

Dhanabhol Riowruangsanggoon¹, Apiwat Riddhabhaya², Nattisa Niyomtham², Irin Sirisoontorn¹

Affiliations

¹ Department of Clinical Dentistry, Walailak University International College of Dentistry (WUICD), 87 Ranong 2 Road, Dusit, Bangkok 10300, Thailand.
² Department of Oral Health Science, Walailak University International College of Dentistry (WUICD), 87 Ranong 2 Road, Dusit, Bangkok 10300, Thailand.

Abstract

This study aims to compare shear bond strength (SBS) and mode of failure (MOF) between ceramic and metal orthodontic brackets on glazed monolithic zirconia using non-woven polypropylene fiber adhesive. Sixty glazed and sintered zirconia blocks were divided into six groups and attached with orthodontic brackets as follows: CS, ceramic bracket with silane; CB, ceramic bracket with bonding agent; CBS, ceramic bracket with bonding agent and silane; MS, metal bracket with silane; MB, metal bracket with bonding agent; and MBS, metal bracket with bonding agent and silane. There was a statistically significant difference in mean SBS values (p < 0.001). The CS group showed the highest SBS value (23.42 ± 3.88 MPa). On the other hand, the lowest was found in the MB group, which was not statistically different from the CB group (3.26 ± 0.76 and 5.09 ± 1.50 MPa, respectively). The MS, MBS, and CBS groups showed no statistical difference compared to each other (15.57 ± 4.01, 13.23 ± 5.47, and 12.77 ± 4.43 MPa, respectively). SBS is highest when a ceramic bracket with silane is bonded to glazed monolithic zirconia.

Keywords: ceramic bracket; metal bracket; monolithic zirconia; precoated bracket; shear bond strength.

Grants and funding

All materials and article processing charges (APC) for this study were supported by the Department of Clinical Dentistry, Walailak University International College of Dentistry (WUICD), as part of a thesis for the Master of Science in Dentistry (Orthodontics), grant number: 02/2562.