Objective:To evaluate the clinical performance of metal wing lingual retainer.Methods:Twelve patients after orthodontic treatment were selected.Six patients used the lingual retainer of cobalt-chromium alloy wing printed by laser fusion technology,and 6 patients used the lingual wire fixed retainer.All the retainers were bonded to the mandibular teeth by resin adhesive.The bonding operative time were recorded,and the retainer reten-tion and deformation,dentition retention,periodontal health index,and comfort were evaluated at 1,3,and 6 months after bonding.Results:The chair-side time of metal wing group(5.27±2.58)min was shorter than that of lingual wire group(10.07±2.71 min,P＜0.05).The retention and deformation,dentition retention,periodontal health index,and Comfort Index of metal wing group were better than that of lingual wire group(P＜0.05).Conclusion:Metal wing lingual retainer printed by laser fusion technique could meet the clinical requirements.
维普
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