不同牙面应用过氧化脲漂白效果的评估：一项研究。
Evaluation of bleaching efficiency of carbamide peroxide applied on different dental surfaces: An study.
作者信息
Gokulnath R, Kumar R S Mohan, Jayasenthil A, Anjana R, Vidya G Sree
机构信息
Department of Conservative Dentistry and Endodontics, Priyadarshini Dental College, Chennai, Tamil Nadu, India.
出版信息
J Conserv Dent Endod. 2025 Apr;28(4):366-370. doi: 10.4103/JCDE.JCDE_634_24. Epub 2025 Apr 3.
INTRODUCTION
Tooth color is an important issue for esthetic dentistry professionals and for patients that wish to enhance the appearance of their smiles. At-home whitening under professional supervision is the usual form of treatment for tooth discolorations. The goal of this study was to assess the effectiveness of carbamide peroxide (CP) bleaching through the application of at-home bleaching gel on various dental surfaces.
MATERIALS AND METHODS
Forty coffee-stained premolars were randomly assigned into four groups: only application on the buccal surface (A), only application on the lingual surface (B), application on the buccal and lingual surfaces simultaneously (C), and a control group with no bleaching (D). At-home bleaching gel (Polanight 22%) was used for the procedure. A digital spectrophotometer was used to evaluate bleaching efficacy (color change in CIELAB [ΔE ab] and Whitening Index for Dentistry [ΔWID]).
RESULTS
The simultaneous application of CP on buccal and lingual surfaces provides little additional efficiency compared to the buccal application alone, resulting in acceptable bleaching efficacy.
引言
牙齿颜色对于美学牙科专业人员以及希望改善笑容外观的患者来说是一个重要问题。在专业监督下进行家庭美白是牙齿变色的常见治疗方式。本研究的目的是通过在家中使用漂白凝胶评估过氧化脲（CP）对各种牙面的漂白效果。
材料与方法
40颗因咖啡染色的前磨牙被随机分为四组：仅涂于颊面（A组）、仅涂于舌面（B组）、同时涂于颊面和舌面（C组）以及不进行漂白的对照组（D组）。使用家庭美白凝胶（Polanight 22%）进行该操作。使用数字分光光度计评估漂白效果（CIELAB颜色变化[ΔE ab]和牙科美白指数[ΔWID]）。
结果
与仅在颊面应用相比，在颊面和舌面同时应用CP几乎没有额外的效果，漂白效果尚可接受。
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