摘要
Abstract
Objective To discuss the types of different orthodontic brackets and the effects of blasting and bleaching on the roughness and color of the tooth surface in order to provide a reference for cosmetic restoration. Methods 50 premolars who were removed for orthodontic treatment in our hospital dentistry from Jan. 2014 to Aug. 2017,and divided into A group (chemical curing resin binder) of 17 isolated teeth, B group (light curing resin binder) of 17 isolated teeth, C group (blank control) of 16 isolated teeth,followed by bracket removal to bond, stain, to color processing,to compare the changes of roughness and color parameters between the three groups,and compare the effects of different color processing. Results The results of surface roughness when three sets of brackets to bond:group A>group B>group C;After treatment, the L* values of the three groups were significantly decreased (P<0.05), the a* and b* values were significantly increased (P<0.05), and the degree of change in group A was significantly higher than that in group B and group C (P<0.05);After sandblasting and bleaching the results of the three groups of roughness: group B>group A>group C;Comparison of the tooth surface roughness of the three groups of colored teeth after different color processing:sandblasting>bleaching>blank control;After color processing, the L* values of the three groups were significantly increased (P<0.05), and the a* and b* values were significantly decreased (P<0.05), and the degree of bleaching treatment was significantly higher than that of sandblasting (P<0.05). Conclusion Chemically cured resin binder can be used as orthodontic brackets bonding materials,the beauty of the tooth surface can be treated with bleach,and at the same time supplemented by polishing technology to consolidate clinical efficacy关键词
口腔正畸/粘结剂/喷砂/漂白/粗糙度/美容修复Key words
oral orthodontics/binder/sandblasting/bleach/roughness/cosmetic repair分类
医药卫生
