L'Orthodontie Française
MENUComparative study of excess glue around metallic APC™ Flash-Free adhesive system Volume 93, issue 3, Septembre 2022
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- Key words: Brackets, APC™ Flash-Free, Precoated brackets, Excess adhesive
- DOI : 10.1684/orthodfr.2022.91
- Page(s) : 249-58
- Published in: 2022
Introduction
The aim of this in vitro study was to determine if there is a significant difference in the excess adhesive flash between the metallic APC™ Flash-Free adhesive system, the APC™ pre-coated adhesive system and a conventional uncoated system.
Materials and Methods
One hundred eighty-six freshly extracted human premolars were randomly and blindly divided into three groups according to the type of brackets. Group A (control group n=60): The conventional uncoated metallic bracket (Victory, 3M Unitek®) with a Transbond XT™ Light Cure Adhesive Paste was used. Group B (n=60): The APC™ II metallic maxillary precoated premolar brackets was used. Group C (n=66) : The metallic APC™ Flash-Free adhesive system without flash clean up was used. Images were taken at 40 magnifications in a dental microscope (Leica M320 for dental, Wetzlar, Germany) then analyzed with the ImageJ software and the area of excess adhesive flash was measured.
Results
The mean percentage was significantly different between the three groups (p<0.001; ANOVA). It was significantly smaller for brackets in the APC Flash-Free group (p<0.001), and the difference was not significant between conventional brackets and APC (p=0.224).
Discussion
The new technique seems to reduce the amount of excessive adhesive around orthodontic brackets.