About this article
Published Online: Jan 16, 2024
Page range: 10 - 15
Received: Jul 01, 1995
Accepted: Apr 01, 1997
DOI: https://doi.org/10.2478/aoj-1997-0010
Keywords
© 1997 Ekachai Chunhacheevachaloke et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
In this study, two types of ceramic brackets – monocrystalline and polycrystalline – were bonded to unroughened and roughened resin-composite discs using a light-cured orthodontic adhesive, and the bonds tested under shear stress in a universal testing machine. There was no significant difference in the shear bond strength between the combinations of ceramic brackets, and between the surface treatments of the resin composite. A higher frequency of resin-composite fracture was observed with the polycrystalline brackets (12/20) than with the monocrystalline ceramic brackets (7/20). lt is concluded that debonding any type of ceramic bracket from a resin-composite surface may cause damage to the resin composite itself.