Ruaydee T, Saikaew P, Panpisut P, Kawamoto C, Tomokiyo A, Sano H
Thanawat Ruaydee, DDS MSc, Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Nahon Pathom, Thailand.
*Pipop Saikaew, DDS, MSc, PhD, Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Nahon Pathom, Thailand.
Oper Dent. 2025 May 1;50(3):245-250. doi: 10.2341/24-099-T.
In this case report, we describe the use of a universal shade resin composite to restore a discolored tooth before nonvital tooth bleaching. The intent of this procedure is to maintain an acceptable color match, eliminating the need for subsequent replacement of the restoration after bleaching.
A substantial defective Class IV resin composite was removed from a discolored, endodontically treated tooth #8. The existing gutta percha was sealed with glass ionomer, and 35% Thanawat Ruaydee, DDS MSc, Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Nahon Pathom, Thailand hydrogen peroxide gel was applied in the access chamber. The access cavity was temporarily sealed with a flowable resin composite and the entire tooth was restored with a group-shade universal resin composite. After a two-week bleaching period, the bleaching gel and temporary filling in the access cavity were replaced with the same universal shade resin composite, without necessitating the complete replacement of the entire restoration.
A favorable outcome was noted during a one-year follow-up period, with the bleached tooth maintaining a harmonious color and the resin composite restoration exhibiting a stable and satisfactory condition.
The clinical use of a universal shade resin composite before bleaching exhibited significant promise in facilitating an effective color match in a discolored tooth after bleaching. This method may substantially diminish the need for restoration replacement due to challenges associated with color discrepancies.
在本病例报告中，我们描述了在进行非活髓牙漂白之前使用通用色号树脂复合材料修复变色牙的情况。该操作的目的是保持可接受的颜色匹配，消除漂白后后续更换修复体的必要性。
从一颗变色的、已进行根管治疗的8号牙上去除大量有缺陷的IV类树脂复合材料。用玻璃离子封闭现有的牙胶，在髓腔中涂抹35%的过氧化氢凝胶。髓腔用可流动树脂复合材料临时封闭，整颗牙齿用通用色号的通用树脂复合材料修复。经过两周的漂白期后，用相同的通用色号树脂复合材料替换漂白凝胶和髓腔中的临时充填物，而无需完全更换整个修复体。
在一年的随访期内观察到良好的效果，漂白后的牙齿保持了和谐的颜色，树脂复合材料修复体表现出稳定且令人满意的状态。
在漂白前临床使用通用色号树脂复合材料在促进漂白后变色牙的有效颜色匹配方面显示出巨大潜力。由于与颜色差异相关的挑战，这种方法可能会大幅减少修复体更换的需求。
