Abstract
ABSTRACT Objective: The aim of this study was to compare the inflammatory effects of conventional and laser soldering methods on periodontal tissues in orthodontics. Materials and Method: Forty specimens were acquired from 10 patients whose treatment plan consisted of extraction of 4 first premolars. Before performing the extractions, a transpalatal arch (TPA) for the upper first molars and a lingual arch for the lower first molars were placed for anchorage purposes. Upper left and lower right first molar bands were soldered using the laser welding (LW) technique, and upper right and lower left first molar bands were soldered using the conventional silver soldering technique (CSS). Gingival crevicular fluid (GCF) analysis was used for determining the effects of welding procedures on periodontal tissues. All variables were analyzed by nonparametric tests. Results: Myeloperoxidase levels ranged between 2.46 and 3.56 for the CSS group and between 2.20 and 3.39 for the LW group; nitric oxide levels ranged bet...
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