Effects of adhesive flash-free brackets on debonding pain an
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The purpose of this study was to evaluate all parameters related to patient discomfort, including pain, the amount of adhesive remnant, and removal time at the phase of debonding. To that end, the null hypothesis was that flash-free brackets had no effects on these parameters.

Thirty patients (20 female, 10 male) aged 12 to 18 years undergoing nonextraction fixed orthodontic treatment were included in this study. APC flash-free and conventional ceramic brackets were bonded with a split-mouth study design. Bracket types were randomly allocated to quadrants. During the removal of the brackets, the visual analogue scale (VAS) was used to assess the level of pain for each tooth. The adhesive remnant index (ARI) was used to determine the amount of adhesive remaining on the tooth surface. Adhesive removal times were calculated per quadrant.

Pain scores were generally higher for the conventional group than for the flash-free group. There were no differences in VAS scores across most tooth types during debonding. Overall, ARI results showed more adhesive remnants in the conventional bracket group. Except for the right maxillary quadrant, the times required to remove the adhesive were significantly longer for the flash-free brackets than the conventional brackets.


The highest pain scores were observed with the conventional brackets compared to the flash-free brackets.

There was less adhesive remnants left on the teeth with the flash-free brackets, though removal time was slightly but statistically significantly longer.

Both the differences in pain and the removal time could be considered clinically insignificant.

Source: https://meridian.allenpress.com/angle-orthodontist/article/90/6/758/443011/Effects-of-adhesive-flash-free-brackets-on