Efficacy of Bracket Adhesive Remnant Removal by a Fluorescence‐Aided Identification Technique with a UV Light Handpiece: <i>In Vitro</i> Study
Sabrina Elise Moecke, Pedro Caio Alves Barros, Adrielle Caroline Moreira Andrade, Alessandra Bühler Borges, Cesar Rogério Pucci, Carlos Rocha Gomes Torres
Abstract
Objective . This study aims to analyze the fluorescence‐aided identification technique efficacy on adhesive remnant removal from the enamel surface after orthodontic bracket debonding. Materials and Methods . Forty‐five extracted human upper central incisors were divided into 3 groups ( n = 15) according to the kind of adhesive for bracket bonding and the use or absence of near UV light for remnant removal: BF/UV‐ fluorescent adhesive/UV light, BF/0‐fluorescent adhesive/no UV light, and TB/0‐nonfluorescent adhesive/no UV light. For all teeth, 100% of the adhesive used remained on the enamel surface after debonding. Fifteen dentists performed adhesive removal on the enamel surface using a carbide bur. The specimens were analyzed by a stereomicroscope, and the adhesive remnant percentage from each specimen was calculated. The time used by each dentist to perform the removal was recorded. The data were analyzed by one‐way ANOVA and Tukey’s test. Results . Significant differences were observed among groups for adhesive remnant ( p = 0.0008) and for time ( p = 0.0001). The means of adhesive remnant were BF/UV (5.84), BF/0 (34.37), and TB/0 (37.02). The mean times necessary to remove adhesive were BF/UV (1 min 40 s), BF/0 (3 min 03 s), and TB/0 (2 min 46 s). For the BF/UV group, significantly lower values of adhesive remnants and time for debonding were found ( p < 0.05). Conclusion . The fluorescence‐aided identification technique significantly reduced the amount of adhesive remnant, and the time necessary to perform this clinical procedure.