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KMID : 1149720240140010001
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Clinical Journal of Korean association of Orthodontists
2024 Volume.14 No. 1 p.1 ~ p.8
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Fracture Rate and Adhesive Remnants after Debonding of Ceramic Self-Ligating Brackets
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Kim Yu-Ri
Lim Sung-Hoon
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Abstract
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Introduction: The purpose of this study was to measure the fracture rates and adhesive remnant indices of two ceramic self-ligating orthodontic brackets after dental debonding. Methods: Clippy-C 2G (Tomy, Tokyo, Japan) and Majesty-SLC brackets (Osstem Orthodontics, Uiwang, Korea) were bonded on 72 premolars of 27 patients. Only maxillary and mandibular first premolar brackets were bonded. Debonding was done at least four weeks after the bonding using a debonding plier for Majesty-SLC brackets. After the debonding procedure, the fracture rate was examined and the resin remnants were measured using modified adhesive remnant index (ARI) scores. Results: No statistical significance in ARI scores was observed between the two brackets (P=0.101). The bracket fracture rate during debonding was significantly higher in the Clippy-C 2G brackets in maxillary premolars (P=0.002). Conclusions: The amount of residual resin remnants on the enamel surface suggested that both ceramic self-ligating brackets can be debonded safely with little damage to the enamel. Clippy-C 2G brackets for maxillary first premolars showed a significantly higher fracture rate.
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KEYWORD
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Orthodontic brackets, Dental debonding, Ceramic bracket, Bracket fracture, Adhesive remnant index
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