Taipei Medical University Institutional Repository:Item 987654321/65442
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    题名: Tooth Discoloration and the Effects of Internal Bleaching on the Novel Endodontic Filling Material SavDen? MTA
    作者: 謝松志
    Wan-Chun Yang, Liang-Yi Tsai, Yung-Hao Hsu, Nai-Chia Teng, Jen-Chang Yang, Sung-Chih Hsieh
    贡献者: 牙醫學系
    关键词: Keywords: Bioceramic material;Discoloration;Internal bleaching;MTA;SavDen? MTA
    日期: 2021-01
    上传时间: 2025-04-01 21:07:56 (UTC+8)
    摘要: Abstract
    Background/Purpose
    Mineral trioxide aggregate (MTA) was widely used in endodontic therapy as bioceramic material. Although MTA has high biocompatibility, it may lead to tooth discoloration. The aim of this study was to investigate the discoloration of two different bioceramic materials and the effects of internal bleaching.
    Methods
    Thirty single-canal mandibular premolars were extracted and randomly assigned to three groups (n?=?10), white ProRoot? MTA, SavDen? MTA and a control group. Endodontic access opening, cleaning and shaping were performed, then the teeth were obturated using the two bioceramic materials. Tooth color was recorded at baseline, day 1, and 1, 2, 4, 6, 8, 12, 16, and 24 weeks after treatment. At the end of 24 weeks, sodium perborate was used to perform internal bleaching. Tooth color was recorded at 1, 2, and 6 weeks subsequently. Teeth were measured using a DeguDent? spectrophotometer, and data were transformed into Commission Internationale de l'Eclairage (CIE) L?a?b? system.
    Results
    Teeth treated with white ProRoot? MTA showed significant color change and decrease in L? value. Internal bleaching leaded to decrease of the ΔE? value for all three groups and?increase in the L? value. There was no difference in tooth discoloration between SavDen? MTA and the control group after obturation and internal bleaching.
    Conclusion
    In terms of visual perception, white ProRoot? MTA tends to cause black and blue discoloration. SavDen? MTA, formulated with calcium lactate gluconate, could be used to reduce tooth discoloration in endodontic treatment.
    關聯: Journal of the Formosan Medical Association, Volume 120, Issue 1, Part 2, 2021, Pages 476-482
    描述: 【109-2 升等】臺北醫學大學教師升等專門著作
    職別：專任
    送審等級：教授
    著作送審
    数据类型: article
    显示于类别:[教師升等送審著作] 109

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