Nogueira Jhones-Suelone-Pontes, Lins-Filho Paulo-Cardoso, Dias Marlon-Ferreira, Silva Marianna-Falcão, Guimarães Renata-Pedrosa
Graduated in Dentistry from Federal University of Pernambuco.
Master student of the Dentistry postgraduate program of Federal University of Pernambuco.
J Clin Exp Dent. 2019 Nov 1;11(11):e1012-e1017. doi: 10.4317/jced.56316. eCollection 2019 Nov.
After dental bleaching procedures dentists commonly advise patients to reduce the consumption of beverages that may cause the teeth to stain, however, the effectiveness of teeth whitening may not be directly affected by diet.
It was evaluated through in vitro study whether contact with dyes through in-office bleaching sessions with 35% hydrogen peroxide would influence the effectiveness of treatment. Sixty bovine incisors were randomly assigned into 5 groups (n = 12) according to contact frequency and type of dye solutions. All dental elements received three in-office bleaching sessions with 35% hydrogen peroxide one week apart. Except for GCTRL (control), all experimental groups were submerged in dyes (coffee or wine) for 5 min once a day. In groups GC24 and GW24 contact with the dyes was made from 24 hours after each bleaching session, while in groups GC72 and GW72, from 72 hours. The color was measured with a digital spectrophotometer. Data were expressed as statistics: mean and standard deviation.
Contact with dyes during in-office bleaching treatment with 35% hydrogen peroxide did not influence the staining averages after three bleaching sessions. The speed of the whitening effect was influenced by contact with coffee from 24 hours after the sessions and with wine from 24 hours and 72 hours after the whitening session. The whitening result was reversed after one week for all groups, especially for groups that came in contact with red wine either 24 hours or 72 hours after session and coffee after 24 hours.
Contact with dyes during in-office bleaching treatment did not influence the final staining averages after three bleaching sessions although there was influence on speed of the whitening effect between the sessions. Tooth bleaching, hydrogen peroxide, spectrophotometry.
在牙齿漂白程序之后，牙医通常建议患者减少饮用可能导致牙齿染色的饮料，然而，牙齿美白的效果可能不会直接受到饮食的影响。
通过体外研究评估在使用35%过氧化氢进行诊室漂白疗程时接触染料是否会影响治疗效果。根据接触频率和染料溶液类型，将60颗牛切牙随机分为5组（n = 12）。所有牙齿样本均接受三次使用35%过氧化氢的诊室漂白疗程，每次疗程间隔一周。除GCTRL组（对照组）外，所有实验组每天将牙齿样本浸泡在染料（咖啡或葡萄酒）中5分钟。在GC24组和GW24组中，每次漂白疗程后24小时开始接触染料，而在GC72组和GW72组中，从72小时开始接触。使用数字分光光度计测量颜色。数据以统计数据表示：平均值和标准差。
在使用35%过氧化氢进行诊室漂白治疗期间接触染料，在三次漂白疗程后并未影响染色平均值。美白效果的速度受到疗程后24小时接触咖啡以及美白疗程后24小时和72小时接触葡萄酒的影响。一周后所有组的美白效果均出现逆转，尤其是在疗程后24小时或72小时接触红酒以及24小时后接触咖啡的组。
在诊室漂白治疗期间接触染料，尽管在疗程之间对美白效果的速度有影响，但在三次漂白疗程后并未影响最终的染色平均值。牙齿漂白、过氧化氢、分光光度法。
